Tarea 1 - Redes de Computadoras 2022-2#

Edgar Omar Mendoza López - 308341209

Debian 11 "Bullseye"#

Información del sistema (1/2)
Información del sistema (2/2)
mledgaro@debian-11-local:~$ uname -a
Linux debian-11-local 5.10.0-11-amd64 #1 SMP Debian 5.10.92-1 (2022-01-18) x86_64 GNU/Linux
mledgaro@debian-11-local:~$ cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"
NAME="Debian GNU/Linux"
VERSION_ID="11"
VERSION="11 (bullseye)"
VERSION_CODENAME=bullseye
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"
mledgaro@debian-11-local:~$ cat /etc/debian_version
11.2
mledgaro@debian-11-local:~$ lsmod
Module                  Size  Used by
vboxvideo              49152  0
rfkill                 28672  3
ghash_clmulni_intel    16384  0
joydev                 28672  0
snd_intel8x0           49152  2
snd_ac97_codec        180224  1 snd_intel8x0
aesni_intel           368640  0
ac97_bus               16384  1 snd_ac97_codec
snd_pcm               135168  2 snd_intel8x0,snd_ac97_codec
libaes                 16384  1 aesni_intel
crypto_simd            16384  1 aesni_intel
cryptd                 24576  2 crypto_simd,ghash_clmulni_intel
glue_helper            16384  1 aesni_intel
vboxguest             413696  6
snd_timer              49152  1 snd_pcm
pcspkr                 16384  0
serio_raw              20480  0
snd                   110592  8 snd_intel8x0,snd_timer,snd_ac97_codec,snd_pcm
sg                     36864  0
soundcore              16384  1 snd
ac                     16384  0
evdev                  28672  10
nfnetlink              16384  0
msr                    16384  0
fuse                  167936  3
configfs               57344  1
ip_tables              32768  0
x_tables               53248  1 ip_tables
autofs4                53248  2
ext4                  921600  1
crc16                  16384  1 ext4
mbcache                16384  1 ext4
jbd2                  151552  1 ext4
crc32c_generic         16384  0
hid_generic            16384  0
usbhid                 65536  0
hid                   147456  2 usbhid,hid_generic
sr_mod                 28672  0
sd_mod                 61440  3
cdrom                  73728  1 sr_mod
t10_pi                 16384  1 sd_mod
crc_t10dif             20480  1 t10_pi
crct10dif_generic      16384  0
ata_generic            16384  0
vmwgfx                376832  3
ttm                   114688  2 vmwgfx,vboxvideo
drm_kms_helper        278528  2 vmwgfx,vboxvideo
cec                    61440  1 drm_kms_helper
ohci_pci               20480  0
ahci                   40960  2
libahci                45056  1 ahci
ata_piix               36864  0
ehci_pci               20480  0
ohci_hcd               61440  1 ohci_pci
drm                   618496  7 vmwgfx,drm_kms_helper,vboxvideo,ttm
ehci_hcd               98304  1 ehci_pci
libata                290816  4 ata_piix,libahci,ahci,ata_generic
usbcore               323584  5 ohci_hcd,ehci_pci,usbhid,ehci_hcd,ohci_pci
scsi_mod              262144  4 sd_mod,libata,sg,sr_mod
psmouse               184320  0
crct10dif_pclmul       16384  1
crct10dif_common       16384  3 crct10dif_generic,crc_t10dif,crct10dif_pclmul
crc32_pclmul           16384  0
crc32c_intel           24576  2
e1000                 155648  0
i2c_piix4              28672  0
usb_common             16384  3 ohci_hcd,usbcore,ehci_hcd
battery                20480  0
video                  53248  0
button                 24576  0
mledgaro@debian-11-local:~$ ps afx
    PID TTY      STAT   TIME COMMAND
      2 ?        S      0:00 [kthreadd]
      3 ?        I<     0:00  \_ [rcu_gp]
      4 ?        I<     0:00  \_ [rcu_par_gp]
      6 ?        I<     0:00  \_ [kworker/0:0H-events_highpri]
      8 ?        I<     0:00  \_ [mm_percpu_wq]
      9 ?        S      0:00  \_ [rcu_tasks_rude_]
     10 ?        S      0:00  \_ [rcu_tasks_trace]
     11 ?        S      0:00  \_ [ksoftirqd/0]
     12 ?        I      0:00  \_ [rcu_sched]
     13 ?        S      0:00  \_ [migration/0]
     15 ?        S      0:00  \_ [cpuhp/0]
     17 ?        S      0:00  \_ [kdevtmpfs]
     18 ?        I<     0:00  \_ [netns]
     19 ?        S      0:00  \_ [kauditd]
     20 ?        S      0:00  \_ [khungtaskd]
     21 ?        S      0:00  \_ [oom_reaper]
     22 ?        I<     0:00  \_ [writeback]
     23 ?        S      0:00  \_ [kcompactd0]
     24 ?        SN     0:00  \_ [ksmd]
     25 ?        SN     0:00  \_ [khugepaged]
     43 ?        I<     0:00  \_ [kintegrityd]
     44 ?        I<     0:00  \_ [kblockd]
     45 ?        I<     0:00  \_ [blkcg_punt_bio]
     46 ?        I<     0:00  \_ [edac-poller]
     47 ?        I<     0:00  \_ [devfreq_wq]
     48 ?        I<     0:00  \_ [kworker/0:1H-kblockd]
     50 ?        S      0:00  \_ [kswapd0]
     51 ?        I<     0:00  \_ [kthrotld]
     52 ?        I<     0:00  \_ [acpi_thermal_pm]
     53 ?        I<     0:00  \_ [ipv6_addrconf]
     63 ?        I<     0:00  \_ [kstrp]
     66 ?        I<     0:00  \_ [zswap-shrink]
     67 ?        I<     0:00  \_ [kworker/u3:0]
    110 ?        I<     0:00  \_ [ata_sff]
    111 ?        S      0:00  \_ [scsi_eh_0]
    112 ?        I<     0:00  \_ [scsi_tmf_0]
    113 ?        S      0:00  \_ [scsi_eh_1]
    114 ?        I<     0:00  \_ [scsi_tmf_1]
    116 ?        S      0:00  \_ [scsi_eh_2]
    117 ?        I<     0:00  \_ [scsi_tmf_2]
    119 ?        S      0:00  \_ [irq/18-vmwgfx]
    120 ?        I<     0:00  \_ [ttm_swap]
    121 ?        S      0:00  \_ [card0-crtc0]
    122 ?        S      0:00  \_ [card0-crtc1]
    123 ?        S      0:00  \_ [card0-crtc2]
    124 ?        S      0:00  \_ [card0-crtc3]
    125 ?        S      0:00  \_ [card0-crtc4]
    126 ?        S      0:00  \_ [card0-crtc5]
    127 ?        S      0:00  \_ [card0-crtc6]
    128 ?        S      0:00  \_ [card0-crtc7]
    170 ?        S      0:00  \_ [jbd2/sda1-8]
    171 ?        I<     0:00  \_ [ext4-rsv-conver]
    290 ?        I<     0:00  \_ [iprt-VBoxWQueue]
    291 ?        I<     0:00  \_ [cryptd]
   1097 ?        I      0:00  \_ [kworker/0:2-mm_percpu_wq]
   1103 ?        I      0:00  \_ [kworker/u2:0-flush-8:0]
   1134 ?        I      0:00  \_ [kworker/u2:1-events_unbound]
   1235 ?        I      0:00  \_ [kworker/u2:3-flush-8:0]
   1980 ?        I      0:00  \_ [kworker/0:4-events]
   2048 ?        I      0:00  \_ [kworker/0:0-ata_sff]
   2055 ?        I      0:00  \_ [kworker/0:1-mm_percpu_wq]
      1 ?        Ss     0:03 /sbin/init
    211 ?        Ss     0:00 /lib/systemd/systemd-journald
    230 ?        Ss     0:00 /lib/systemd/systemd-udevd
    406 ?        Ssl    0:00 /lib/systemd/systemd-timesyncd
    427 ?        Ssl    0:00 /usr/libexec/accounts-daemon
    435 ?        Ss     0:00 avahi-daemon: running [debian-11-local.local]
    475 ?        S      0:00  \_ avahi-daemon: chroot helper
    436 ?        Ss     0:00 /usr/sbin/cron -f
    437 ?        Ss     0:02 /usr/bin/dbus-daemon --system --address=systemd: --
    443 ?        Ssl    0:00 /usr/sbin/NetworkManager --no-daemon
    447 ?        Ssl    0:02 /usr/libexec/polkitd --no-debug
    450 ?        Ssl    0:00 /usr/sbin/rsyslogd -n -iNONE
    453 ?        Ssl    0:00 /usr/libexec/switcheroo-control
    459 ?        Ss     0:00 /lib/systemd/systemd-logind
    464 ?        Ssl    0:00 /usr/libexec/udisks2/udisksd
    471 ?        Ss     0:00 /sbin/wpa_supplicant -u -s -O /run/wpa_supplicant
    474 ?        Ssl    0:00 /sbin/dhclient -4 -v -i -pf /run/dhclient.enp0s8.pi
    507 ?        Ssl    0:00 /usr/sbin/ModemManager
    557 ?        Ssl    0:00 /usr/bin/python3 /usr/share/unattended-upgrades/una
    562 ?        Ss     0:00 sshd: /usr/sbin/sshd -D [listener] 0 of 10-100 star
    699 ?        Ssl    0:00 /usr/sbin/gdm3
   1129 ?        Sl     0:00  \_ gdm-session-worker [pam/gdm-password]
   1165 tty2     Ssl+   0:00      \_ /usr/libexec/gdm-wayland-session /usr/bin/g
   1170 tty2     Sl+    0:00          \_ /usr/libexec/gnome-session-binary --sys
    704 ?        Sl     0:00 /usr/sbin/VBoxService --pidfile /var/run/vboxadd-se
    750 ?        SNsl   0:00 /usr/libexec/rtkit-daemon
    839 ?        Ssl    0:00 /usr/libexec/upowerd
    904 ?        Ssl    0:06 /usr/libexec/packagekitd
   1024 ?        Ssl    0:00 /usr/libexec/colord
   1133 ?        Ss     0:00 /lib/systemd/systemd --user
   1135 ?        S      0:00  \_ (sd-pam)
   1154 ?        S<sl   0:00  \_ /usr/bin/pipewire
   1169 ?        S<l    0:00  |   \_ /usr/bin/pipewire-media-session
   1155 ?        S<sl   0:00  \_ /usr/bin/pulseaudio --daemonize=no --log-target
   1158 ?        SNsl   0:00  \_ /usr/libexec/tracker-miner-fs
   1167 ?        Ss     0:00  \_ /usr/bin/dbus-daemon --session --address=system
   1212 ?        Ssl    0:00  \_ /usr/libexec/gnome-session-ctl --monitor
   1213 ?        Ss     0:00  \_ ssh-agent -D -a /run/user/1000/openssh_agent
   1214 ?        Ssl    0:00  \_ /usr/libexec/gnome-session-binary --systemd-ser
   1234 ?        Sl     0:00  |   \_ /usr/libexec/at-spi-bus-launcher --launch-i
   1245 ?        S      0:00  |   |   \_ /usr/bin/dbus-daemon --config-file=/usr
   1408 ?        Sl     0:00  |   \_ /usr/libexec/evolution-data-server/evolutio
   1413 ?        Sl     0:00  |   \_ /usr/libexec/gsd-disk-utility-notify
   1434 ?        Sl     0:02  |   \_ /usr/bin/gnome-software --gapplication-serv
   1240 ?        Ssl    0:37  \_ /usr/bin/gnome-shell
   1282 ?        Sl     0:00  |   \_ /usr/bin/Xwayland :0 -rootless -noreset -ac
   1579 ?        Sl     0:00  |   \_ ibus-daemon --panel disable -r --xim
   1591 ?        Sl     0:00  |       \_ /usr/libexec/ibus-dconf
   1592 ?        Sl     0:03  |       \_ /usr/libexec/ibus-extension-gtk3
   1652 ?        Sl     0:00  |       \_ /usr/libexec/ibus-engine-simple
   1267 ?        Ssl    0:00  \_ /usr/libexec/gvfsd
   1272 ?        Sl     0:00  \_ /usr/libexec/gvfsd-fuse /run/user/1000/gvfs -f
   1283 ?        Ssl    0:00  \_ /usr/libexec/gvfs-udisks2-volume-monitor
   1308 ?        Ssl    0:00  \_ /usr/libexec/xdg-permission-store
   1313 ?        Sl     0:00  \_ /usr/libexec/gnome-shell-calendar-server
   1319 ?        Ssl    0:00  \_ /usr/libexec/evolution-source-registry
   1326 ?        Sl     0:00  \_ /usr/libexec/goa-daemon
   1329 ?        Ssl    0:00  \_ /usr/libexec/evolution-calendar-factory
   1338 ?        Sl     0:00  \_ /usr/libexec/goa-identity-service
   1349 ?        Sl     0:00  \_ /usr/libexec/dconf-service
   1353 ?        Ssl    0:00  \_ /usr/libexec/evolution-addressbook-factory
   1367 ?        Ssl    0:00  \_ /usr/libexec/gvfs-mtp-volume-monitor
   1374 ?        Ssl    0:00  \_ /usr/libexec/gvfs-afc-volume-monitor
   1379 ?        Ssl    0:00  \_ /usr/libexec/gvfs-gphoto2-volume-monitor
   1383 ?        Ssl    0:00  \_ /usr/libexec/gvfs-goa-volume-monitor
   1389 ?        Sl     0:00  \_ /usr/bin/gjs /usr/share/gnome-shell/org.gnome.S
   1390 ?        Sl     0:00  \_ /usr/libexec/at-spi2-registryd --use-gnome-sess
   1397 ?        Ssl    0:00  \_ /usr/libexec/gsd-a11y-settings
   1398 ?        Ssl    0:00  \_ /usr/libexec/gsd-color
   1399 ?        Ssl    0:00  \_ /usr/libexec/gsd-datetime
   1401 ?        Ssl    0:00  \_ /usr/libexec/gsd-housekeeping
   1405 ?        Ssl    0:00  \_ /usr/libexec/gsd-keyboard
   1414 ?        Ssl    0:00  \_ /usr/libexec/gsd-media-keys
   1416 ?        Ssl    0:00  \_ /usr/libexec/gsd-power
   1421 ?        Ssl    0:00  \_ /usr/libexec/gsd-print-notifications
   1422 ?        Ssl    0:00  \_ /usr/libexec/gsd-rfkill
   1425 ?        Ssl    0:00  \_ /usr/libexec/gsd-screensaver-proxy
   1432 ?        Ssl    0:00  \_ /usr/libexec/gsd-sharing
   1435 ?        Ssl    0:00  \_ /usr/libexec/gsd-smartcard
   1443 ?        S      0:00  \_ /usr/bin/VBoxClient --clipboard
   1445 ?        Sl     0:00  |   \_ /usr/bin/VBoxClient --clipboard
   1451 ?        Ssl    0:00  \_ /usr/libexec/gsd-sound
   1455 ?        Ssl    0:00  \_ /usr/libexec/gsd-usb-protection
   1464 ?        Ssl    0:00  \_ /usr/libexec/gsd-wacom
   1495 ?        Sl     0:00  \_ /usr/libexec/gsd-printer
   1508 ?        S      0:00  \_ /usr/bin/VBoxClient --seamless
   1509 ?        Sl     0:00  |   \_ /usr/bin/VBoxClient --seamless
   1521 ?        S      0:00  \_ /usr/bin/VBoxClient --draganddrop
   1523 ?        Sl     0:04  |   \_ /usr/bin/VBoxClient --draganddrop
   1541 ?        S      0:00  \_ /usr/bin/VBoxClient --vmsvga
   1542 ?        S      0:00  |   \_ [VBoxDRMClient]
   1585 ?        Ssl    0:00  \_ /usr/libexec/gsd-xsettings
   1595 ?        Sl     0:00  \_ /usr/libexec/ibus-x11 --kill-daemon
   1598 ?        Sl     0:00  \_ /usr/libexec/ibus-portal
   2004 ?        Ssl    0:00  \_ /usr/libexec/gvfsd-metadata
   2029 ?        Ssl    0:03  \_ /usr/libexec/gnome-terminal-server
   2037 pts/0    Ss     0:00      \_ bash
   2067 pts/0    R+     0:00          \_ ps afx
   1161 ?        Sl     0:00 /usr/bin/gnome-keyring-daemon --daemonize --login
   1622 ?        Ssl    0:00 /usr/libexec/fwupd/fwupd
mledgaro@debian-11-local:~$ hostname -I
10.0.2.15 192.168.56.101
mledgaro@debian-11-local:~$ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 08:00:27:86:c7:1e brd ff:ff:ff:ff:ff:ff
    inet 10.0.2.15/24 brd 10.0.2.255 scope global dynamic noprefixroute enp0s3
       valid_lft 84511sec preferred_lft 84511sec
    inet6 fe80::a00:27ff:fe86:c71e/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
3: enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 08:00:27:7a:a7:2e brd ff:ff:ff:ff:ff:ff
    inet 192.168.56.101/24 brd 192.168.56.255 scope global dynamic enp0s8
       valid_lft 542sec preferred_lft 542sec
    inet6 fe80::a00:27ff:fe7a:a72e/64 scope link 
       valid_lft forever preferred_lft forever
mledgaro@debian-11-local:~$ ip route show
default via 10.0.2.2 dev enp0s3 proto dhcp metric 100 
10.0.2.0/24 dev enp0s3 proto kernel scope link src 10.0.2.15 metric 100 
169.254.0.0/16 dev enp0s8 scope link metric 1000 
192.168.56.0/24 dev enp0s8 proto kernel scope link src 192.168.56.101
mledgaro@debian-11-local:~$ cat /etc/resolv.conf
# Generated by NetworkManager
nameserver 10.0.2.3
mledgaro@debian-11-local:~$ netstat -ntulp
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      -                   
tcp6       0      0 :::22                   :::*                    LISTEN      -                   
udp        0      0 0.0.0.0:47164           0.0.0.0:*                           -                   
udp        0      0 0.0.0.0:68              0.0.0.0:*                           -                   
udp        0      0 0.0.0.0:5353            0.0.0.0:*                           -                   
udp6       0      0 :::33558                :::*                                -                   
udp6       0      0 :::5353                 :::*                                -                   
mledgaro@debian-11-local:~$ ping -c 4 1.1.1.1
PING 1.1.1.1 (1.1.1.1): 56 data bytes
64 bytes from 1.1.1.1: icmp_seq=0 ttl=63 time=280.883 ms
64 bytes from 1.1.1.1: icmp_seq=1 ttl=63 time=114.346 ms
64 bytes from 1.1.1.1: icmp_seq=2 ttl=63 time=124.565 ms
64 bytes from 1.1.1.1: icmp_seq=3 ttl=63 time=111.836 ms
--- 1.1.1.1 ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max/stddev = 111.836/157.907/280.883/71.160 ms
mledgaro@debian-11-local:~$ dig fciencias.unam.mx

; <<>> DiG 9.16.22-Debian <<>> fciencias.unam.mx
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2909
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;fciencias.unam.mx.     IN  A

;; ANSWER SECTION:
fciencias.unam.mx.  15  IN  A   100.110.177.184

;; Query time: 0 msec
;; SERVER: 10.0.2.3#53(10.0.2.3)
;; WHEN: Mon Feb 28 21:34:04 EST 2022
;; MSG SIZE  rcvd: 62

mledgaro@debian-11-local:~$ getent passwd mledgaro
mledgaro:x:1000:1000:mledgaro,,,:/home/mledgaro:/bin/bash
mledgaro@debian-11-local:~$ id
uid=1000(mledgaro) gid=1000(mledgaro) groups=1000(mledgaro),24(cdrom),25(floppy),27(sudo),29(audio),30(dip),44(video),46(plugdev),109(netdev),113(bluetooth),119(scanner)
mledgaro@debian-11-local:~$ groups
mledgaro cdrom floppy sudo audio dip video plugdev netdev bluetooth scanner
mledgaro@debian-11-local:~$ sudo -l
Matching Defaults entries for mledgaro on debian-11-local:
    env_reset, mail_badpass,
    secure_path=/usr/local/sbin\:/usr/local/bin\:/usr/sbin\:/usr/bin\:/sbin\:/bin

User mledgaro may run the following commands on debian-11-local:
    (ALL : ALL) NOPASSWD: ALL
mledgaro@debian-11-local:~$ sudo -i
root@debian-11-local:~# 
mledgaro@debian-11-local:~$ which wireshark tcpdump nmap netcat-openbsd ngrep dsniff wget curl whois dnsutils net-tools iproute2 iptables iptables-persistent tsocks inetutils-ping inetutils-traceroute inetutils-tools ethtool
/usr/bin/wireshark
/usr/bin/tcpdump
/usr/bin/nmap
/usr/bin/ngrep
/usr/bin/wget
/usr/bin/curl
/usr/bin/whois
/usr/bin/tsocks
/usr/bin/inetutils-traceroute
mledgaro@debian-11-local:~$ whereis wireshark tcpdump nmap netcat-openbsd ngrep dsniff wget curl whois dnsutils net-tools iproute2 iptables iptables-persistent tsocks inetutils-ping inetutils-traceroute inetutils-tools ethtool
wireshark: /usr/bin/wireshark /usr/lib/x86_64-linux-gnu/wireshark /etc/wireshark /usr/share/wireshark /usr/share/man/man1/wireshark.1.gz
tcpdump: /usr/bin/tcpdump /usr/share/man/man8/tcpdump.8.gz
nmap: /usr/bin/nmap /usr/share/nmap /usr/share/man/man1/nmap.1.gz
netcat-openbsd:
ngrep: /usr/bin/ngrep /usr/share/man/man8/ngrep.8.gz
dsniff: /usr/sbin/dsniff /usr/share/dsniff /usr/share/man/man8/dsniff.8.gz
wget: /usr/bin/wget /usr/share/man/man1/wget.1.gz /usr/share/info/wget.info.gz
curl: /usr/bin/curl /usr/share/man/man1/curl.1.gz
whois: /usr/bin/whois /usr/share/man/man1/whois.1.gz
dnsutils:
net-tools:
iproute2: /etc/iproute2 /usr/include/iproute2
iptables: /usr/sbin/iptables /etc/iptables /usr/share/iptables /usr/share/man/man8/iptables.8.gz
iptables-persistent:
tsocks: /usr/bin/tsocks /etc/tsocks.conf /usr/share/man/man8/tsocks.8.gz /usr/share/man/man1/tsocks.1.gz
inetutils-ping:
inetutils-traceroute: /usr/bin/inetutils-traceroute /usr/share/man/man1/inetutils-traceroute.1.gz
inetutils-tools:
ethtool: /usr/sbin/ethtool /usr/share/man/man8/ethtool.8.gz

CentOS Stream 8#

Información del sistema
[mledgaro@centos-8 ~]$ uname -a
Linux centos-8.local 4.18.0-365.el8.x86_64 #1 SMP Thu Feb 10 16:11:23 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
[mledgaro@centos-8 ~]$ cat /etc/os-release
NAME="CentOS Stream"
VERSION="8"
ID="centos"
ID_LIKE="rhel fedora"
VERSION_ID="8"
PLATFORM_ID="platform:el8"
PRETTY_NAME="CentOS Stream 8"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:centos:centos:8"
HOME_URL="https://centos.org/"
BUG_REPORT_URL="https://bugzilla.redhat.com/"
REDHAT_SUPPORT_PRODUCT="Red Hat Enterprise Linux 8"
REDHAT_SUPPORT_PRODUCT_VERSION="CentOS Stream"
[mledgaro@centos-8 ~]$ cat /etc/redhat-release
CentOS Stream release 8
[mledgaro@centos-8 ~]$ lsmod
Module                  Size  Used by
nls_utf8               16384  1
isofs                  49152  1
uinput                 20480  0
vboxvideo              32768  0
drm_vram_helper        20480  1 vboxvideo
drm_ttm_helper         16384  2 drm_vram_helper,vboxvideo
xt_CHECKSUM            16384  1
ipt_MASQUERADE         16384  3
xt_conntrack           16384  1
ipt_REJECT             16384  2
nft_compat             20480  16
nf_nat_tftp            16384  0
nft_objref             16384  1
nf_conntrack_tftp      16384  3 nf_nat_tftp
nft_counter            16384  33
bridge                278528  0
stp                    16384  1 bridge
llc                    16384  2 bridge,stp
nft_fib_inet           16384  1
nft_fib_ipv4           16384  1 nft_fib_inet
nft_fib_ipv6           16384  1 nft_fib_inet
nft_fib                16384  3 nft_fib_ipv6,nft_fib_ipv4,nft_fib_inet
nft_reject_inet        16384  5
nf_reject_ipv4         16384  2 nft_reject_inet,ipt_REJECT
nf_reject_ipv6         16384  1 nft_reject_inet
nft_reject             16384  1 nft_reject_inet
nft_ct                 20480  18
nf_tables_set          49152  20
nft_chain_nat          16384  12
nf_nat                 45056  3 ipt_MASQUERADE,nf_nat_tftp,nft_chain_nat
nf_conntrack          172032  6 xt_conntrack,nf_nat,nf_conntrack_tftp,nft_ct,ipt_MASQUERADE,nf_nat_tftp
nf_defrag_ipv6         20480  1 nf_conntrack
nf_defrag_ipv4         16384  1 nf_conntrack
ip_set                 49152  0
nf_tables             180224  456 nft_ct,nft_compat,nft_reject_inet,nft_fib_ipv6,nft_objref,nft_fib_ipv4,nft_counter,nft_chain_nat,nf_tables_set,nft_reject,nft_fib,nft_fib_inet
nfnetlink              16384  4 nft_compat,nf_tables,ip_set
sunrpc                565248  1
snd_intel8x0           45056  3
snd_ac97_codec        143360  1 snd_intel8x0
ac97_bus               16384  1 snd_ac97_codec
snd_seq                81920  0
crct10dif_pclmul       16384  1
crc32_pclmul           16384  0
snd_seq_device         16384  1 snd_seq
snd_pcm               118784  2 snd_intel8x0,snd_ac97_codec
ghash_clmulni_intel    16384  0
snd_timer              36864  2 snd_seq,snd_pcm
snd                    98304  12 snd_seq,snd_seq_device,snd_intel8x0,snd_timer,snd_ac97_codec,snd_pcm
pcspkr                 16384  0
i2c_piix4              24576  0
soundcore              16384  1 snd
joydev                 24576  0
video                  49152  0
xfs                  1552384  2
libcrc32c              16384  4 nf_conntrack,nf_nat,nf_tables,xfs
vmwgfx                372736  3
sr_mod                 28672  1
cdrom                  65536  2 isofs,sr_mod
sd_mod                 53248  3
t10_pi                 16384  1 sd_mod
sg                     40960  0
ata_generic            16384  0
ttm                    73728  3 vmwgfx,drm_vram_helper,drm_ttm_helper
drm_kms_helper        266240  3 vmwgfx,drm_vram_helper,vboxvideo
syscopyarea            16384  1 drm_kms_helper
sysfillrect            16384  1 drm_kms_helper
sysimgblt              16384  1 drm_kms_helper
fb_sys_fops            16384  1 drm_kms_helper
drm                   585728  9 vmwgfx,drm_kms_helper,drm_vram_helper,vboxvideo,drm_ttm_helper,ttm
ahci                   40960  2
ata_piix               36864  1
libahci                40960  1 ahci
libata                262144  4 ata_piix,libahci,ahci,ata_generic
e1000                 151552  0
crc32c_intel           24576  1
serio_raw              16384  0
vboxguest             385024  6
dm_mirror              28672  0
dm_region_hash         20480  1 dm_mirror
dm_log                 20480  2 dm_region_hash,dm_mirror
dm_mod                151552  9 dm_log,dm_mirror
ipmi_devintf           20480  0
ipmi_msghandler       110592  1 ipmi_devintf
fuse                  155648  3
[mledgaro@centos-8 ~]$ ps afx
    PID TTY      STAT   TIME COMMAND
      2 ?        S      0:00 [kthreadd]
      3 ?        I<     0:00  \_ [rcu_gp]
      4 ?        I<     0:00  \_ [rcu_par_gp]
      6 ?        I<     0:00  \_ [kworker/0:0H-events_highpri]
      7 ?        I      0:00  \_ [kworker/u2:0-events_unbound]
      8 ?        I<     0:00  \_ [mm_percpu_wq]
      9 ?        S      0:00  \_ [rcu_tasks_rude_]
     10 ?        S      0:00  \_ [rcu_tasks_trace]
     11 ?        S      0:00  \_ [ksoftirqd/0]
     12 ?        R      0:00  \_ [rcu_sched]
     13 ?        S      0:00  \_ [migration/0]
     14 ?        S      0:00  \_ [watchdog/0]
     15 ?        S      0:00  \_ [cpuhp/0]
     17 ?        S      0:00  \_ [kdevtmpfs]
     18 ?        I<     0:00  \_ [netns]
     19 ?        S      0:00  \_ [kauditd]
     20 ?        S      0:00  \_ [khungtaskd]
     21 ?        S      0:00  \_ [oom_reaper]
     22 ?        I<     0:00  \_ [writeback]
     23 ?        S      0:00  \_ [kcompactd0]
     24 ?        SN     0:00  \_ [ksmd]
     25 ?        SN     0:00  \_ [khugepaged]
     26 ?        I<     0:00  \_ [crypto]
     27 ?        I<     0:00  \_ [kintegrityd]
     28 ?        I<     0:00  \_ [kblockd]
     29 ?        I<     0:00  \_ [blkcg_punt_bio]
     31 ?        I<     0:00  \_ [tpm_dev_wq]
     32 ?        I<     0:00  \_ [md]
     33 ?        I<     0:00  \_ [edac-poller]
     34 ?        S      0:00  \_ [watchdogd]
     35 ?        I<     0:00  \_ [kworker/0:1H-kblockd]
     60 ?        S      0:00  \_ [kswapd0]
    162 ?        I<     0:00  \_ [kthrotld]
    163 ?        I<     0:00  \_ [acpi_thermal_pm]
    164 ?        I<     0:00  \_ [kmpath_rdacd]
    165 ?        I<     0:00  \_ [kaluad]
    166 ?        I<     0:00  \_ [ipv6_addrconf]
    167 ?        I      0:00  \_ [kworker/0:2-ata_sff]
    168 ?        I<     0:00  \_ [kstrp]
    441 ?        I<     0:00  \_ [iprt-VBoxWQueue]
    450 ?        I<     0:00  \_ [ata_sff]
    451 ?        S      0:00  \_ [scsi_eh_0]
    452 ?        I<     0:00  \_ [scsi_tmf_0]
    454 ?        S      0:00  \_ [scsi_eh_1]
    455 ?        I<     0:00  \_ [scsi_tmf_1]
    457 ?        S      0:00  \_ [scsi_eh_2]
    458 ?        I<     0:00  \_ [scsi_tmf_2]
    468 ?        I<     0:00  \_ [ttm_swap]
    469 ?        S      0:00  \_ [irq/18-vmwgfx]
    470 ?        S      0:00  \_ [card0-crtc0]
    471 ?        S      0:00  \_ [card0-crtc1]
    472 ?        S      0:00  \_ [card0-crtc2]
    473 ?        S      0:00  \_ [card0-crtc3]
    474 ?        S      0:00  \_ [card0-crtc4]
    475 ?        S      0:00  \_ [card0-crtc5]
    476 ?        S      0:00  \_ [card0-crtc6]
    477 ?        S      0:00  \_ [card0-crtc7]
    548 ?        I<     0:00  \_ [kdmflush/253:0]
    557 ?        I<     0:00  \_ [kdmflush/253:1]
    581 ?        I<     0:00  \_ [xfsalloc]
    582 ?        I<     0:00  \_ [xfs_mru_cache]
    583 ?        I<     0:00  \_ [xfs-buf/dm-0]
    584 ?        I<     0:00  \_ [xfs-conv/dm-0]
    585 ?        I<     0:00  \_ [xfs-cil/dm-0]
    586 ?        I<     0:00  \_ [xfs-reclaim/dm-]
    587 ?        I<     0:00  \_ [xfs-eofblocks/d]
    588 ?        I<     0:00  \_ [xfs-log/dm-0]
    589 ?        S      0:00  \_ [xfsaild/dm-0]
    624 ?        I      0:00  \_ [kworker/0:4-events]
    792 ?        I<     0:00  \_ [xfs-buf/sda1]
    793 ?        I<     0:00  \_ [xfs-conv/sda1]
    794 ?        I<     0:00  \_ [xfs-cil/sda1]
    795 ?        I<     0:00  \_ [xfs-reclaim/sda]
    796 ?        I<     0:00  \_ [xfs-eofblocks/s]
    797 ?        I<     0:00  \_ [xfs-log/sda1]
    798 ?        S      0:00  \_ [xfsaild/sda1]
    831 ?        I<     0:00  \_ [rpciod]
    832 ?        I<     0:00  \_ [kworker/u3:0]
    833 ?        I<     0:00  \_ [xprtiod]
   2494 ?        I      0:00  \_ [kworker/u2:3-events_unbound]
   3162 ?        I      0:00  \_ [kworker/0:0-events]
      1 ?        Ss     0:05 /usr/lib/systemd/systemd --switched-root --system -
    687 ?        Ss     0:00 /usr/lib/systemd/systemd-journald
    725 ?        Ss     0:00 /usr/lib/systemd/systemd-udevd
    820 ?        Ss     0:00 /usr/bin/rpcbind -w -f
    824 ?        S<sl   0:00 /sbin/auditd
    826 ?        S<     0:00  \_ /usr/sbin/sedispatch
    855 ?        Ss     0:00 /usr/sbin/smartd -n -q never
    858 ?        Ssl    0:05 /usr/lib/polkit-1/polkitd --no-debug
    859 ?        Ss     0:00 /usr/lib/systemd/systemd-machined
    861 ?        SNs    0:00 /usr/sbin/alsactl -s -n 19 -c -E ALSA_CONFIG_PATH=/
    864 ?        Ss     0:00 /usr/bin/lsmd -d
    866 ?        SNsl   0:00 /usr/libexec/rtkit-daemon
    867 ?        Ssl    0:00 /usr/libexec/udisks2/udisksd
    868 ?        Ssl    0:03 /usr/bin/dbus-daemon --system --address=systemd: --
    869 ?        Ss     0:00 avahi-daemon: running [centos-8.local]
    891 ?        S      0:00  \_ avahi-daemon: chroot helper
    872 ?        S      0:00 /usr/sbin/chronyd
    873 ?        Ss     0:00 /usr/sbin/sssd -i --logger=files
    893 ?        S      0:00  \_ /usr/libexec/sssd/sssd_be --domain implicit_fil
    898 ?        S      0:00  \_ /usr/libexec/sssd/sssd_nss --uid 0 --gid 0 --lo
    884 ?        S      0:00 /bin/bash /usr/sbin/ksmtuned
   3203 ?        S      0:00  \_ sleep 60
    901 ?        Ssl    0:03 /usr/libexec/platform-python -s /usr/sbin/firewalld
    902 ?        Ssl    0:00 /usr/sbin/ModemManager
    986 ?        Ss     0:00 /usr/lib/systemd/systemd-logind
    987 ?        Ssl    0:00 /usr/libexec/accounts-daemon
    998 ?        Ssl    0:00 /usr/sbin/NetworkManager --no-daemon
   1010 ?        Ss     0:00 /usr/sbin/sshd -D -oCiphers=aes256-gcm@openssh.com,
   1013 ?        Rsl    0:09 /usr/libexec/platform-python -Es /usr/sbin/tuned -l
   1017 ?        Ss     0:00 /usr/sbin/cupsd -l
   1023 ?        Ssl    0:00 /usr/sbin/gssproxy -D
   1240 ?        Ssl    0:00 /usr/sbin/rsyslogd -n
   1252 ?        Ss     0:00 /usr/sbin/crond -n
   1253 ?        Ss     0:00 /usr/sbin/atd -f
   1558 ?        S      0:00 /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/dnsm
   1562 ?        S      0:00  \_ /usr/sbin/dnsmasq --conf-file=/var/lib/libvirt/
   1822 ?        Ssl    0:00 /usr/sbin/gdm
   2232 ?        Sl     0:00  \_ gdm-session-worker [pam/gdm-password]
   2282 tty2     Ssl+   0:00      \_ /usr/libexec/gdm-wayland-session --register
   2289 tty2     Sl+    0:00          \_ /usr/libexec/gnome-session-binary
   2352 tty2     Sl+    0:31              \_ /usr/bin/gnome-shell
   2392 tty2     S+     0:00              |   \_ /usr/bin/Xwayland :0 -rootless 
   2408 tty2     Sl     0:00              |   \_ ibus-daemon --xim --panel disab
   2412 tty2     Sl     0:00              |       \_ /usr/libexec/ibus-dconf
   2413 tty2     Sl     0:02              |       \_ /usr/libexec/ibus-extension
   2652 tty2     Sl     0:00              |       \_ /usr/libexec/ibus-engine-si
   2505 tty2     Sl+    0:00              \_ /usr/libexec/gsd-power
   2506 tty2     Sl+    0:00              \_ /usr/libexec/gsd-print-notification
   2509 tty2     Sl+    0:00              \_ /usr/libexec/gsd-rfkill
   2511 tty2     Sl+    0:00              \_ /usr/libexec/gsd-screensaver-proxy
   2512 tty2     Sl+    0:00              \_ /usr/libexec/gsd-sharing
   2516 tty2     Sl+    0:00              \_ /usr/libexec/gsd-sound
   2520 tty2     Sl+    0:00              \_ /usr/libexec/gsd-xsettings
   2524 tty2     Sl+    0:00              \_ /usr/libexec/gsd-wacom
   2530 tty2     Sl+    0:00              \_ /usr/libexec/gsd-smartcard
   2532 tty2     Sl+    0:00              \_ /usr/libexec/gsd-account
   2548 tty2     Sl+    0:00              \_ /usr/libexec/gsd-a11y-settings
   2552 tty2     Sl+    0:00              \_ /usr/libexec/gsd-clipboard
   2556 tty2     Sl+    0:00              \_ /usr/libexec/gsd-color
   2559 tty2     Sl+    0:00              \_ /usr/libexec/gsd-datetime
   2560 tty2     Sl+    0:00              \_ /usr/libexec/gsd-housekeeping
   2561 tty2     Sl+    0:00              \_ /usr/libexec/gsd-keyboard
   2567 tty2     Sl+    0:00              \_ /usr/libexec/gsd-media-keys
   2571 tty2     Sl+    0:00              \_ /usr/libexec/gsd-mouse
   2750 tty2     Sl+    0:02              \_ /usr/bin/gnome-software --gapplicat
   2754 tty2     Sl+    0:00              \_ /usr/libexec/gsd-disk-utility-notif
   2773 tty2     SNl+   0:00              \_ /usr/libexec/tracker-miner-apps
   2778 tty2     SNl+   0:00              \_ /usr/libexec/tracker-miner-fs
   1838 ?        Sl     0:00 /usr/sbin/VBoxService --pidfile /var/run/vboxadd-se
   2002 ?        Ssl    0:00 /usr/libexec/upowerd
   2016 ?        Ssl    0:17 /usr/libexec/packagekitd
   2022 ?        Ss     0:00 /usr/sbin/wpa_supplicant -c /etc/wpa_supplicant/wpa
   2084 ?        Ssl    0:00 /usr/libexec/colord
   2249 ?        Ss     0:00 /usr/lib/systemd/systemd --user
   2253 ?        S      0:00  \_ (sd-pam)
   2271 ?        S<sl   0:00  \_ /usr/bin/pulseaudio --daemonize=no --log-target
   2284 ?        Ssl    0:00  \_ /usr/bin/dbus-daemon --session --address=system
   2373 ?        Ssl    0:00  \_ /usr/libexec/gvfsd
   2382 ?        Sl     0:00  \_ /usr/libexec/gvfsd-fuse /run/user/1000/gvfs -f 
   2395 ?        Ssl    0:00  \_ /usr/libexec/at-spi-bus-launcher
   2400 ?        Sl     0:00  |   \_ /usr/bin/dbus-daemon --config-file=/usr/sha
   2405 ?        Sl     0:00  \_ /usr/libexec/at-spi2-registryd --use-gnome-sess
   2420 ?        Sl     0:00  \_ /usr/libexec/ibus-portal
   2424 ?        Ssl    0:00  \_ /usr/libexec/xdg-permission-store
   2435 ?        Sl     0:00  \_ /usr/libexec/gnome-shell-calendar-server
   2439 ?        Ssl    0:00  \_ /usr/libexec/evolution-source-registry
   2455 ?        Sl     0:00  \_ /usr/libexec/goa-daemon
   2456 ?        Ssl    0:00  \_ /usr/libexec/gvfs-udisks2-volume-monitor
   2468 ?        Ssl    0:00  \_ /usr/libexec/gvfs-mtp-volume-monitor
   2474 ?        Ssl    0:00  \_ /usr/libexec/gvfs-gphoto2-volume-monitor
   2478 ?        Ssl    0:00  \_ /usr/libexec/gvfs-afc-volume-monitor
   2485 ?        Ssl    0:00  \_ /usr/libexec/gvfs-goa-volume-monitor
   2491 ?        Sl     0:00  \_ /usr/libexec/goa-identity-service
   2553 ?        Ssl    0:00  \_ /usr/libexec/evolution-calendar-factory
   2632 ?        Sl     0:00  |   \_ /usr/libexec/evolution-calendar-factory-sub
   2663 ?        Sl     0:00  \_ /usr/libexec/dconf-service
   2665 ?        Ssl    0:00  \_ /usr/libexec/evolution-addressbook-factory
   2690 ?        Sl     0:00  |   \_ /usr/libexec/evolution-addressbook-factory-
   2804 ?        Ssl    0:00  \_ /usr/libexec/tracker-store
   3098 ?        Ssl    0:03  \_ /usr/libexec/gnome-terminal-server
   3103 pts/0    Ss     0:00      \_ bash
   3204 pts/0    R+     0:00          \_ ps afx
   2276 ?        Sl     0:00 /usr/bin/gnome-keyring-daemon --daemonize --login
   2417 tty2     Sl     0:00 /usr/libexec/ibus-x11 --kill-daemon
   2501 ?        Ss     0:01 /usr/libexec/sssd/sssd_kcm --uid 0 --gid 0 --logger
   2611 tty2     Sl+    0:00 /usr/libexec/gsd-printer
   2776 ?        S      0:00 /usr/bin/VBoxClient --clipboard
   2779 ?        Sl     0:00  \_ /usr/bin/VBoxClient --clipboard
   2803 ?        S      0:00 /usr/bin/VBoxClient --seamless
   2808 ?        Sl     0:00  \_ /usr/bin/VBoxClient --seamless
   2815 ?        S      0:00 /usr/bin/VBoxClient --draganddrop
   2818 ?        Sl     0:01  \_ /usr/bin/VBoxClient --draganddrop
   2825 ?        S      0:00 /usr/bin/VBoxClient --vmsvga
   2828 ?        S      0:00  \_ [VBoxDRMClient]
   2933 ?        Ssl    0:00 /usr/libexec/fwupd/fwupd
[mledgaro@centos-8 ~]$ hostname -I
10.0.2.15 192.168.122.1
[mledgaro@centos-8 ~]$ ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: enp0s3: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 08:00:27:64:25:54 brd ff:ff:ff:ff:ff:ff
    inet 10.0.2.15/24 brd 10.0.2.255 scope global dynamic noprefixroute enp0s3
       valid_lft 84594sec preferred_lft 84594sec
    inet6 fe80::a00:27ff:fe64:2554/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
3: enp0s8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc fq_codel state UP group default qlen 1000
    link/ether 08:00:27:a6:02:54 brd ff:ff:ff:ff:ff:ff
4: virbr0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
    link/ether 52:54:00:69:ef:da brd ff:ff:ff:ff:ff:ff
    inet 192.168.122.1/24 brd 192.168.122.255 scope global virbr0
       valid_lft forever preferred_lft forever
[mledgaro@centos-8 ~]$ ip route show
default via 10.0.2.2 dev enp0s3 proto dhcp metric 100 
10.0.2.0/24 dev enp0s3 proto kernel scope link src 10.0.2.15 metric 100 
192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 linkdown
[mledgaro@centos-8 ~]$ cat /etc/resolv.conf
# Generated by NetworkManager
search local
nameserver 10.0.2.3
[mledgaro@centos-8 ~]$ netstat -ntulp
(Not all processes could be identified, non-owned process info
 will not be shown, you would have to be root to see it all.)
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name    
tcp        0      0 0.0.0.0:111             0.0.0.0:*               LISTEN      -                   
tcp        0      0 192.168.122.1:53        0.0.0.0:*               LISTEN      -                   
tcp        0      0 0.0.0.0:22              0.0.0.0:*               LISTEN      -                   
tcp        0      0 127.0.0.1:631           0.0.0.0:*               LISTEN      -                   
tcp6       0      0 :::111                  :::*                    LISTEN      -                   
tcp6       0      0 :::22                   :::*                    LISTEN      -                   
tcp6       0      0 ::1:631                 :::*                    LISTEN      -                   
udp        0      0 192.168.122.1:53        0.0.0.0:*                           -                   
udp        0      0 0.0.0.0:67              0.0.0.0:*                           -                   
udp        0      0 0.0.0.0:111             0.0.0.0:*                           -                   
udp        0      0 0.0.0.0:5353            0.0.0.0:*                           -                   
udp        0      0 127.0.0.1:323           0.0.0.0:*                           -                   
udp        0      0 0.0.0.0:50507           0.0.0.0:*                           -                   
udp6       0      0 :::111                  :::*                                -                   
udp6       0      0 :::5353                 :::*                                -                   
udp6       0      0 ::1:323                 :::*                                -                   
udp6       0      0 :::58805                :::*                                -     
[mledgaro@centos-8 ~]$ ping -c 4 1.1.1.1
PING 1.1.1.1 (1.1.1.1) 56(84) bytes of data.
64 bytes from 1.1.1.1: icmp_seq=1 ttl=63 time=109 ms
64 bytes from 1.1.1.1: icmp_seq=2 ttl=63 time=112 ms
64 bytes from 1.1.1.1: icmp_seq=3 ttl=63 time=111 ms
64 bytes from 1.1.1.1: icmp_seq=4 ttl=63 time=115 ms

--- 1.1.1.1 ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3007ms
rtt min/avg/max/mdev = 108.595/111.601/115.158/2.392 ms
[mledgaro@centos-8 ~]$ dig fciencias.unam.mx

; <<>> DiG 9.11.36-RedHat-9.11.36-2.el8 <<>> fciencias.unam.mx
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42581
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 65494
;; QUESTION SECTION:
;fciencias.unam.mx.     IN  A

;; ANSWER SECTION:
fciencias.unam.mx.  15  IN  A   100.110.177.184

;; Query time: 3 msec
;; SERVER: 10.0.2.3#53(10.0.2.3)
;; WHEN: Mon Feb 28 23:02:21 CST 2022
;; MSG SIZE  rcvd: 62
[mledgaro@centos-8 ~]$ getent passwd mledgaro
mledgaro:x:1000:1000:mledgaro:/home/mledgaro:/bin/bash
[mledgaro@centos-8 ~]$ id
uid=1000(mledgaro) gid=1000(mledgaro) groups=1000(mledgaro),10(wheel),974(wireshark) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
[mledgaro@centos-8 ~]$ groups
mledgaro wheel wireshark
[mledgaro@centos-8 ~]$ sudo -l
Matching Defaults entries for mledgaro on centos-8:
    !visiblepw, always_set_home, match_group_by_gid, always_query_group_plugin,
    env_reset, env_keep="COLORS DISPLAY HOSTNAME HISTSIZE KDEDIR LS_COLORS",
    env_keep+="MAIL PS1 PS2 QTDIR USERNAME LANG LC_ADDRESS LC_CTYPE",
    env_keep+="LC_COLLATE LC_IDENTIFICATION LC_MEASUREMENT LC_MESSAGES",
    env_keep+="LC_MONETARY LC_NAME LC_NUMERIC LC_PAPER LC_TELEPHONE",
    env_keep+="LC_TIME LC_ALL LANGUAGE LINGUAS _XKB_CHARSET XAUTHORITY",
    secure_path=/sbin\:/bin\:/usr/sbin\:/usr/bin

User mledgaro may run the following commands on centos-8:
    (ALL) NOPASSWD: ALL
[mledgaro@centos-8 ~]$ sudo -i
[root@centos-8 ~]#
[root@centos-8 ~]# which wireshark tcpdump nmap netcat-openbsd ngrep dsniff wget curl whois dnsutils net-tools iproute2 iptables iptables-persistent tsocks inetutils-ping inetutils-traceroute inetutils-tools ethtool
/bin/wireshark
/sbin/tcpdump
/bin/nmap
/usr/bin/which: no netcat-openbsd in (/usr/local/sbin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin)
/sbin/ngrep
/sbin/dsniff
/bin/wget
/bin/curl
/bin/whois
/usr/bin/which: no dnsutils in (/usr/local/sbin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin)
/usr/bin/which: no net-tools in (/usr/local/sbin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin)
/usr/bin/which: no iproute2 in (/usr/local/sbin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin)
/sbin/iptables
/usr/bin/which: no iptables-persistent in (/usr/local/sbin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin)
/usr/bin/which: no tsocks in (/usr/local/sbin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin)
/usr/bin/which: no inetutils-ping in (/usr/local/sbin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin)
/usr/bin/which: no inetutils-traceroute in (/usr/local/sbin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin)
/usr/bin/which: no inetutils-tools in (/usr/local/sbin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin)
/sbin/ethtool
[root@centos-8 ~]# whereis wireshark tcpdump nmap netcat-openbsd ngrep dsniff wget curl whois dnsutils net-tools iproute2 iptables iptables-persistent tsocks inetutils-ping inetutils-traceroute inetutils-tools ethtool
wireshark: /usr/bin/wireshark /usr/lib64/wireshark /usr/share/wireshark /usr/share/man/man1/wireshark.1.gz
tcpdump: /usr/sbin/tcpdump /usr/share/man/man8/tcpdump.8.gz
nmap: /usr/bin/nmap /usr/share/nmap /usr/share/man/man1/nmap.1.gz
netcat-openbsd:
ngrep: /usr/sbin/ngrep /usr/share/man/man8/ngrep.8.gz
dsniff: /usr/sbin/dsniff /etc/dsniff /usr/share/man/man8/dsniff.8.gz
wget: /usr/bin/wget /usr/share/man/man1/wget.1.gz /usr/share/info/wget.info.gz
curl: /usr/bin/curl /usr/share/man/man1/curl.1.gz
whois: /usr/bin/whois.md /usr/bin/whois /etc/whois.conf /usr/share/man/man1/whois.1.gz
dnsutils:
net-tools:
iproute2: /etc/iproute2
iptables: /usr/sbin/iptables /usr/libexec/iptables /usr/share/man/man8/iptables.8.gz
iptables-persistent:
tsocks:
inetutils-ping:
inetutils-traceroute:
inetutils-tools:
ethtool: /usr/sbin/ethtool /usr/share/man/man8/ethtool.8.gz