System/Kernel
pericles@time:/var/www/html$ file /bin/bash ; uname -a ; cat /etc/*release
/bin/bash: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, BuildID[sha1]=a43fec47192ff49c2d3fed671f2be8df7e83784a, for GNU/Linux 3.2.0, stripped
linux time 5.4.0-52-generic #57-ubuntu smp thu oct 15 10:57:00 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=20.04
DISTRIB_CODENAME=focal
DISTRIB_DESCRIPTION="Ubuntu 20.04 LTS"
NAME="Ubuntu"
VERSION="20.04 LTS (Focal Fossa)"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 20.04 LTS"
VERSION_ID="20.04"
home_url="https://www.ubuntu.com/"
support_url="https://help.ubuntu.com/"
bug_report_url="https://bugs.launchpad.net/ubuntu/"
privacy_policy_url="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
VERSION_CODENAME=focal
UBUNTU_CODENAME=focal5.4.0-52-generic
Ubuntu 20.04 LTS (Focal Fossa)
x86_64
Networks
pericles@time:/var/www/html$ netstat -antup4
(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 (servers and established)
Proto Recv-Q Send-Q Local Address Foreign Address State PID/Program name
tcp 0 0 127.0.0.53:53 0.0.0.0:* LISTEN -
tcp 0 0 0.0.0.0:22 0.0.0.0:* LISTEN -
tcp 0 17 10.10.10.214:57724 10.10.14.7:9999 ESTABLISHED 27814/nc
udp 0 0 127.0.0.53:53 0.0.0.0:* - 127.0.0.53:53
Users & Groups
pericles@time:/var/www/html$ cat /etc/passwd ; ll /home
cat /etc/passwd ; ll /home
root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/usr/sbin/nologin
bin:x:2:2:bin:/bin:/usr/sbin/nologin
sys:x:3:3:sys:/dev:/usr/sbin/nologin
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/usr/sbin/nologin
man:x:6:12:man:/var/cache/man:/usr/sbin/nologin
lp:x:7:7:lp:/var/spool/lpd:/usr/sbin/nologin
mail:x:8:8:mail:/var/mail:/usr/sbin/nologin
news:x:9:9:news:/var/spool/news:/usr/sbin/nologin
uucp:x:10:10:uucp:/var/spool/uucp:/usr/sbin/nologin
proxy:x:13:13:proxy:/bin:/usr/sbin/nologin
www-data:x:33:33:www-data:/var/www:/usr/sbin/nologin
backup:x:34:34:backup:/var/backups:/usr/sbin/nologin
list:x:38:38:Mailing List Manager:/var/list:/usr/sbin/nologin
irc:x:39:39:ircd:/var/run/ircd:/usr/sbin/nologin
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/usr/sbin/nologin
nobody:x:65534:65534:nobody:/nonexistent:/usr/sbin/nologin
systemd-network:x:100:102:systemd Network Management,,,:/run/systemd:/usr/sbin/nologin
systemd-resolve:x:101:103:systemd Resolver,,,:/run/systemd:/usr/sbin/nologin
systemd-timesync:x:102:104:systemd Time Synchronization,,,:/run/systemd:/usr/sbin/nologin
messagebus:x:103:106::/nonexistent:/usr/sbin/nologin
syslog:x:104:110::/home/syslog:/usr/sbin/nologin
_apt:x:105:65534::/nonexistent:/usr/sbin/nologin
tss:x:106:111:TPM software stack,,,:/var/lib/tpm:/bin/false
uuidd:x:107:112::/run/uuidd:/usr/sbin/nologin
tcpdump:x:108:113::/nonexistent:/usr/sbin/nologin
landscape:x:109:115::/var/lib/landscape:/usr/sbin/nologin
pollinate:x:110:1::/var/cache/pollinate:/bin/false
sshd:x:111:65534::/run/sshd:/usr/sbin/nologin
systemd-coredump:x:999:999:systemd Core Dumper:/:/usr/sbin/nologin
pericles:x:1000:1000:Pericles:/home/pericles:/bin/bash
lxd:x:998:100::/var/snap/lxd/common/lxd:/bin/false
mysql:x:112:118:MySQL Server,,,:/nonexistent:/bin/false
total 12K
4.0k drwxr-xr-x 20 root root 4.0k mar 21 13:45 ..
4.0K drwxr-xr-x 7 pericles pericles 4.0K Dec 16 2021 pericles
4.0K drwxr-xr-x 3 root root 4.0K Dec 16 2021 .SUIDs
pericles@time:/var/www/html$ find / -perm -04000 -ls -type f 2>/dev/null
find / -perm -04000 -ls -type f 2>/dev/null
84575 24 -rwsr-xr-x 1 root root 22840 Aug 16 2019 /usr/lib/policykit-1/polkit-agent-helper-1
95510 464 -rwsr-xr-x 1 root root 473576 May 29 2020 /usr/lib/openssh/ssh-keysign
89732 128 -rwsr-xr-x 1 root root 130152 Jul 10 2020 /usr/lib/snapd/snap-confine
84260 52 -rwsr-xr-- 1 root messagebus 51344 Jun 11 2020 /usr/lib/dbus-1.0/dbus-daemon-launch-helper
84360 16 -rwsr-xr-x 1 root root 14488 Jul 8 2019 /usr/lib/eject/dmcrypt-get-device
83480 56 -rwsr-sr-x 1 daemon daemon 55560 Nov 12 2018 /usr/bin/at
83658 40 -rwsr-xr-x 1 root root 39144 Mar 7 2020 /usr/bin/fusermount
83548 84 -rwsr-xr-x 1 root root 85064 Apr 16 2020 /usr/bin/chfn
83878 32 -rwsr-xr-x 1 root root 31032 Aug 16 2019 /usr/bin/pkexec
83810 56 -rwsr-xr-x 1 root root 55528 Apr 2 2020 /usr/bin/mount
83430 164 -rwsr-xr-x 1 root root 166056 Jan 19 2021 /usr/bin/sudo
84079 68 -rwsr-xr-x 1 root root 67816 Apr 2 2020 /usr/bin/su
83676 88 -rwsr-xr-x 1 root root 88464 Apr 16 2020 /usr/bin/gpasswd
84147 40 -rwsr-xr-x 1 root root 39144 Apr 2 2020 /usr/bin/umount
83554 52 -rwsr-xr-x 1 root root 53040 Apr 16 2020 /usr/bin/chsh
83857 68 -rwsr-xr-x 1 root root 68208 Apr 16 2020 /usr/bin/passwd
83824 44 -rwsr-xr-x 1 root root 44784 Apr 16 2020 /usr/bin/newgrp
128 109 -rwsr-xr-x 1 root root 110792 Oct 8 2020 /snap/snapd/9721/usr/lib/snapd/snap-confine
128 109 -rwsr-xr-x 1 root root 110792 Sep 30 2020 /snap/snapd/9607/usr/lib/snapd/snap-confine
55 43 -rwsr-xr-x 1 root root 43088 Jan 8 2020 /snap/core18/1705/bin/mount
64 63 -rwsr-xr-x 1 root root 64424 Jun 28 2019 /snap/core18/1705/bin/ping
80 44 -rwsr-xr-x 1 root root 44664 Mar 22 2019 /snap/core18/1705/bin/su
98 27 -rwsr-xr-x 1 root root 26696 Jan 8 2020 /snap/core18/1705/bin/umount
1731 75 -rwsr-xr-x 1 root root 76496 Mar 22 2019 /snap/core18/1705/usr/bin/chfn
1733 44 -rwsr-xr-x 1 root root 44528 Mar 22 2019 /snap/core18/1705/usr/bin/chsh
1784 75 -rwsr-xr-x 1 root root 75824 Mar 22 2019 /snap/core18/1705/usr/bin/gpasswd
1848 40 -rwsr-xr-x 1 root root 40344 Mar 22 2019 /snap/core18/1705/usr/bin/newgrp
1860 59 -rwsr-xr-x 1 root root 59640 Mar 22 2019 /snap/core18/1705/usr/bin/passwd
1951 146 -rwsr-xr-x 1 root root 149080 Jan 31 2020 /snap/core18/1705/usr/bin/sudo
2038 42 -rwsr-xr-- 1 root systemd-resolve 42992 Jun 10 2019 /snap/core18/1705/usr/lib/dbus-1.0/dbus-daemon-launch-helper
2346 427 -rwsr-xr-x 1 root root 436552 Mar 4 2019 /snap/core18/1705/usr/lib/openssh/ssh-keysign
56 43 -rwsr-xr-x 1 root root 43088 Mar 5 2020 /snap/core18/1885/bin/mount
65 63 -rwsr-xr-x 1 root root 64424 Jun 28 2019 /snap/core18/1885/bin/ping
81 44 -rwsr-xr-x 1 root root 44664 Mar 22 2019 /snap/core18/1885/bin/su
99 27 -rwsr-xr-x 1 root root 26696 Mar 5 2020 /snap/core18/1885/bin/umount
1698 75 -rwsr-xr-x 1 root root 76496 Mar 22 2019 /snap/core18/1885/usr/bin/chfn
1700 44 -rwsr-xr-x 1 root root 44528 Mar 22 2019 /snap/core18/1885/usr/bin/chsh
1752 75 -rwsr-xr-x 1 root root 75824 Mar 22 2019 /snap/core18/1885/usr/bin/gpasswd
1816 40 -rwsr-xr-x 1 root root 40344 Mar 22 2019 /snap/core18/1885/usr/bin/newgrp
1828 59 -rwsr-xr-x 1 root root 59640 Mar 22 2019 /snap/core18/1885/usr/bin/passwd
1919 146 -rwsr-xr-x 1 root root 149080 Jan 31 2020 /snap/core18/1885/usr/bin/sudo
2006 42 -rwsr-xr-- 1 root systemd-resolve 42992 Jun 11 2020 /snap/core18/1885/usr/lib/dbus-1.0/dbus-daemon-launch-helper
2314 427 -rwsr-xr-x 1 root root 436552 Mar 4 2019 /snap/core18/1885/usr/lib/openssh/ssh-keysignSGIDs
pericles@time:/var/www/html$ find / -perm -02000 -ls -type f 2>/dev/null
find / -perm -02000 -ls -type f 2>/dev/null
307 0 drwxr-sr-x 2 root systemd-journal 40 mar 21 11:10 /run/log/journal
108490 16 -rwxr-sr-x 1 root utmp 14648 Sep 30 2019 /usr/lib/x86_64-linux-gnu/utempter/utempter
83480 56 -rwsr-sr-x 1 daemon daemon 55560 Nov 12 2018 /usr/bin/at
95504 344 -rwxr-sr-x 1 root ssh 350504 May 29 2020 /usr/bin/ssh-agent
83640 32 -rwxr-sr-x 1 root shadow 31312 Apr 16 2020 /usr/bin/expiry
83578 44 -rwxr-sr-x 1 root crontab 43720 Feb 13 2020 /usr/bin/crontab
83543 84 -rwxr-sr-x 1 root shadow 84512 Apr 16 2020 /usr/bin/chage
83493 16 -rwxr-sr-x 1 root tty 14488 Mar 30 2020 /usr/bin/bsd-write
84189 36 -rwxr-sr-x 1 root tty 35048 Apr 2 2020 /usr/bin/wall
89561 4 drwxrwsr-x 3 root staff 4096 Dec 16 2021 /usr/local/lib/python3.8
89562 4 drwxrwsr-x 3 root staff 4096 Dec 16 2021 /usr/local/lib/python3.8/dist-packages
89076 4 drwxr-sr-x 2 root staff 4096 Dec 16 2021 /usr/local/lib/python3.8/dist-packages/lshell
100446 4 drwxrwsr-x 2 root staff 4096 Dec 16 2021 /usr/local/share/fonts
89928 44 -rwxr-sr-x 1 root shadow 43160 Dec 17 2019 /usr/sbin/unix_chkpwd
89881 44 -rwxr-sr-x 1 root shadow 43168 Dec 17 2019 /usr/sbin/pam_extrausers_chkpwd
71277 4 drwxr-sr-x 3 root systemd-journal 4096 Dec 16 2021 /var/log/journal
73518 4 drwxr-sr-x 2 root systemd-journal 4096 mar 21 13:19 /var/log/journal/151d23267a7548479f1d63a9000ddfb3
70980 4 drwxrwsr-x 2 root staff 4096 Dec 16 2021 /var/local
70982 4 drwxrwsr-x 2 root mail 4096 Dec 16 2021 /var/mail
1664 34 -rwxr-sr-x 1 root shadow 34816 Feb 27 2019 /snap/core18/1705/sbin/pam_extrausers_chkpwd
1693 34 -rwxr-sr-x 1 root shadow 34816 Feb 27 2019 /snap/core18/1705/sbin/unix_chkpwd
1726 71 -rwxr-sr-x 1 root shadow 71816 Mar 22 2019 /snap/core18/1705/usr/bin/chage
1771 23 -rwxr-sr-x 1 root shadow 22808 Mar 22 2019 /snap/core18/1705/usr/bin/expiry
1944 355 -rwxr-sr-x 1 root crontab 362640 Mar 4 2019 /snap/core18/1705/usr/bin/ssh-agent
2008 31 -rwxr-sr-x 1 root tty 30800 Jan 8 2020 /snap/core18/1705/usr/bin/wall
10757 0 drwxrwsr-x 2 root mail 3 Mar 11 2020 /snap/core18/1705/var/mail
1631 34 -rwxr-sr-x 1 root shadow 34816 Feb 27 2019 /snap/core18/1885/sbin/pam_extrausers_chkpwd
1660 34 -rwxr-sr-x 1 root shadow 34816 Feb 27 2019 /snap/core18/1885/sbin/unix_chkpwd
1693 71 -rwxr-sr-x 1 root shadow 71816 Mar 22 2019 /snap/core18/1885/usr/bin/chage
1738 23 -rwxr-sr-x 1 root shadow 22808 Mar 22 2019 /snap/core18/1885/usr/bin/expiry
1912 355 -rwxr-sr-x 1 root crontab 362640 Mar 4 2019 /snap/core18/1885/usr/bin/ssh-agent
1976 31 -rwxr-sr-x 1 root tty 30800 Mar 5 2020 /snap/core18/1885/usr/bin/wall
10767 0 drwxrwsr-x 2 root mail 3 Jul 24 2020 /snap/core18/1885/var/mailProcesses
pericles@time:/var/www/html$ ps -auxwww | grep -i 'root' --color=auto
ps -auxwww | grep -i 'root' --color=auto
root 1 0.1 0.2 104008 11748 ? Ss 11:10 0:15 /sbin/init auto automatic-ubiquity noprompt
root 446 0.3 3.4 273404 138488 ? S<s 11:10 0:33 /lib/systemd/systemd-journald
root 474 0.1 0.1 21612 5676 ? Ss 11:10 0:13 /lib/systemd/systemd-udevd
root 615 0.0 0.4 345860 18248 ? SLsl 11:10 0:04 /sbin/multipathd -d -s
root 668 0.0 0.2 47524 10624 ? Ss 11:10 0:00 /usr/bin/VGAuthService
root 670 0.1 0.1 161980 7584 ? S<sl 11:10 0:11 /usr/bin/vmtoolsd
root 770 0.0 0.2 239372 9440 ? Ssl 11:10 0:01 /usr/lib/accountsservice/accounts-daemon
root 790 0.0 0.0 81944 3788 ? Ssl 11:10 0:00 /usr/sbin/irqbalance --foreground
root 798 0.0 0.4 29052 18052 ? Ss 11:10 0:00 /usr/bin/python3 /usr/bin/networkd-dispatcher --run-startup-triggers
root 802 0.2 0.9 855224 37000 ? Ssl 11:10 0:25 /usr/lib/snapd/snapd
root 814 0.0 0.1 16632 6188 ? Ss 11:10 0:00 /lib/systemd/systemd-logind
root 873 0.0 0.0 6812 3060 ? Ss 11:10 0:00 /usr/sbin/cron -f
root 906 0.0 0.1 12160 7468 ? Ss 11:10 0:00 sshd: /usr/sbin/sshd -D [listener] 0 of 10-100 startups
root 928 0.0 0.2 236292 8984 ? Ssl 11:10 0:00 /usr/lib/policykit-1/polkitd --no-debug
root 934 0.0 0.0 5828 1848 tty1 Ss+ 11:10 0:00 /sbin/agetty -o -p -- \u --noclear tty1 linux
root 939 0.0 0.4 194040 18384 ? Ss 11:10 0:00 /usr/sbin/apache2 -k start
root 28384 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
root 28385 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
root 28386 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
root 28387 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
root 28388 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
root 28389 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
root 28390 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
root 28391 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
root 28392 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
root 28393 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
root 28394 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
root 28395 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
root 28396 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
root 28397 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
root 28398 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
root 28399 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
root 28401 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
root 28402 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
root 28404 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
root 28405 0.0 0.0 21612 3404 ? S 13:47 0:00 /lib/systemd/systemd-udevd
pericles 28410 0.0 0.0 6632 740 pts/0 S+ 13:47 0:00 grep --color=auto -i root --color=auto/usr/sbin/cron -f
/lib/systemd/systemd-udevd
/usr/lib/policykit-1/polkitd --no-debug
Cron & Systemd
pericles@time:/var/www/html$ crontab -l ; cat /etc/crontab ; systemctl list-timers
no crontab for pericles
# /etc/crontab: system-wide crontab
# Unlike any other crontab you don't have to run the `crontab'
# command to install the new version when you edit this file
# and files in /etc/cron.d. These files also have username fields,
# that none of the other crontabs do.
SHELL=/bin/sh
path=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
# example of job definition:
# .---------------- minute (0 - 59)
# | .------------- hour (0 - 23)
# | | .---------- day of month (1 - 31)
# | | | .------- month (1 - 12) OR jan,feb,mar,apr ...
# | | | | .---- day of week (0 - 6) (Sunday=0 or 7) OR sun,mon,tue,wed,thu,fri,sat
# | | | | |
# * * * * * user-name command to be executed
17 * * * * root cd / && run-parts --report /etc/cron.hourly
25 6 * * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.daily )
47 6 * * 7 root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.weekly )
52 6 1 * * root test -x /usr/sbin/anacron || ( cd / && run-parts --report /etc/cron.monthly )
#
NEXT LEFT LAST PASSED UNIT ACTIVATES
tue 2023-03-21 13:49:02 UTC 8s left Tue 2023-03-21 13:48:52 UTC 1s ago timer_backup.timer timer_backup.service
tue 2023-03-21 14:09:00 UTC 20min left Tue 2023-03-21 13:39:01 UTC 9min ago phpsessionclean.timer phpsessionclean.service
tue 2023-03-21 17:07:23 UTC 3h 18min left Thu 2020-10-22 20:24:53 UTC 2 years 4 months ago fwupd-refresh.timer fwupd-refresh.service
tue 2023-03-21 21:39:26 UTC 7h left Thu 2020-10-22 18:44:20 UTC 2 years 4 months ago apt-daily.timer apt-daily.service
wed 2023-03-22 00:00:00 UTC 10h left Tue 2023-03-21 11:10:42 UTC 2h 38min ago logrotate.timer logrotate.service
wed 2023-03-22 00:00:00 UTC 10h left Tue 2023-03-21 11:10:42 UTC 2h 38min ago man-db.timer man-db.service
wed 2023-03-22 04:05:42 UTC 14h left Tue 2023-03-21 13:14:40 UTC 34min ago motd-news.timer motd-news.service
wed 2023-03-22 06:57:32 UTC 17h left Tue 2023-03-21 11:41:17 UTC 2h 7min ago apt-daily-upgrade.timer apt-daily-upgrade.service
wed 2023-03-22 11:25:39 UTC 21h left Tue 2023-03-21 11:25:39 UTC 2h 23min ago systemd-tmpfiles-clean.timer systemd-tmpfiles-clean.service
sun 2023-03-26 03:10:18 UTC 4 days left Tue 2023-03-21 11:11:02 UTC 2h 37min ago e2scrub_all.timer e2scrub_all.service
mon 2023-03-27 00:00:00 UTC 5 days left Tue 2023-03-21 11:10:42 UTC 2h 38min ago fstrim.timer fstrim.service
11 timers listed.
Pass --all to see loaded but inactive timers, too.tue 2023-03-21 13:49:02 UTC 8s left Tue 2023-03-21 13:48:52 UTC 1s ago timer_backup.timer timer_backup.service
Sudo Version
pericles@time:/var/www/html$ sudo -V
Sudo version 1.8.31
Sudoers policy plugin version 1.8.31
Sudoers file grammar version 46
Sudoers I/O plugin version 1.8.31Sudo version 1.8.31
Glibc Version
pericles@time:/var/www/html$ ldd --version
ldd (Ubuntu GLIBC 2.31-0ubuntu9) 2.31
Copyright (C) 2020 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Written by Roland McGrath and Ulrich Drepper.ldd (Ubuntu GLIBC 2.31-0ubuntu9) 2.31