Dec 29 14:35:37 tesnia.company.local systemd: Stopping puppetserver Service... Dec 29 14:35:37 tesnia.company.local systemd: Starting puppetserver Service... Dec 29 14:35:58 tesnia.company.local java: io/console on JRuby shells out to stty for most…
gsettings set org.nemo.desktop show-desktop-icons false
Server was giving that error, and the ones below Check ipa servers, server was not there add server in ipa ipa-client-install –uninstall ipa-client-install ??? All works again! Dec 20 13:39:40…
Have an admin enable IRC Go to https://my.slack.com/account/gateways Open the webadmin, go to your settings, add a network I chose my team name as the network name Nickname is my…
While doing the let’s encrypt thing for one of my boxes, I got an annoying error. Fix by: sudo yum remove python-requests python-urllib3 sudo pip install requests==2.11.1 urllib3 sudo yum…
Free SSL certs for your znc instance? Follow the steps: 30 */12 * * * /usr/bin/letsencrypt renew >> /var/log/le-renew.log; cat /etc/letsencrypt/live/srv08.karloluiten.nl/privkey.pem /etc/letsencrypt/live/srv08.karloluiten.nl/cert.pem /etc/letsencrypt/live/srv08.karloluiten.nl/chain.pem /etc/letsencrypt/dhparam.pem > /home/user/.znc/znc.pem
If you want certs only, do this: sudo yum install epel-release sudo yum install certbot sudo letsencrypt certonly -a standalone -d srv08.karloluiten.nl crontab -e add: 30 */12 * * *…
No, it is NOT the allowed_hosts. You already checked it 5 times. It is NOT the acl. Some of the log: # time ./check_nrpe -H 127.0.0.1 12:00:01.138458 IP 127.0.0.1.42830 >…
There might be files which you deleted but but are still on disk. This happens if a process still has the file open. You can check for open files by…
vgdisplay (are they there?) vgscan --mknodes -v vgchange -a y
Use reboot -f # reboot Failed to start reboot.target: Activation of org.freedesktop.systemd1 timed out Failed to open /dev/initctl: No such device or address Failed to talk to init daemon. #…
Compound Commands A compound command is one of the following. In most cases a list in a command's description may be separated from the rest of the command by one…
i=0 (( ++i )) echo $i Will give 1
vgrename VG_ESM6c VG Volume group "VG_ESM6c" successfully renamed to "VG" lvrename /dev/VG/root lv_root Renamed "root" to "lv_root" in volume group "VG" then edit /etc/fstab then edit /boot/grub/grub*cfg then make a…
mount with a rescue image, chroot /mnt/sysimage, mount -a see what fails fix your /etc/fstab
$ nmap -p 636 --script ssl-enum-ciphers servername Starting Nmap 6.40 ( http://nmap.org ) at 2016-10-11 08:33 CEST Stats: 0:00:00 elapsed; 0 hosts completed (0 up), 1 undergoing Ping Scan Ping…
Offending DSA key /var/lib/sss/pubconf/known_hosts if you use rhel idm/ipa, remove ssh keys from that server
# dnf -y install dnf-automatic Last metadata expiration check: 2:07:13 ago on Tue Sep 27 06:13:59 2016. Dependencies resolved. =============================================================================================================================================================================================================================================================================================================================== Package Arch Version Repository Size =============================================================================================================================================================================================================================================================================================================================== Installing: dnf-automatic noarch 1.1.10-1.fc24…
Sometimes you want to list the jobs you scheduled (reboots) for a Red Hat Enterprise Linux 7 server. This is how you can list the shutdowns: root@tasus:~# shutdown -r 19:02…
Use /sbin/start_udev . This will restart. Useful in a situation where you updated some libs and need to restart udev, since udev has no init/systemctl restart script.
curl ipinfo.io or curl karloluiten.nl/ip/
/bin/bash script.sh /lib64/ld-linux-x86-64.so.2 binary.bin /usr/bin/php file.php
Open jcontrol, general, network settings, choose ‘Direct connection’. jcontrol is /usr/bin/jcontrol jcontrol is /bin/jcontrol
error: rpmdb: BDB0113 Thread/process 633/140720390891328 failed: BDB1507 Thread died in Berkeley DB library error: db5 error(-30973) from dbenv->failchk: BDB0087 DB_RUNRECOVERY: Fatal error, run database recovery error: cannot open Packages index…
Via a colleague! # Use Alt-arrow keys without prefix key to switch panes bind -n M-Left select-pane -L bind -n M-Right select-pane -R bind -n M-Up select-pane -U bind -n…
Found here: http://ss64.com/bash/syntax-keyboard.html Bash Keyboard Shortcuts Moving the cursor: Ctrl + a Go to the beginning of the line (Home) Ctrl + e Go to the End of the line…
Quick tip sudo !! will repeat the previous command with sudo in front of it.
find /home/*/temp/ -type f -mtime +5 -delete
karlo