Linux

Enabling IPv6 in Docker Settings.

Enable IPv6 in Docker container and compose

What’s Docker Docker stands as a groundbreaking containerization platform that has dramatically streamlined the lifecycle of developing, deploying, and managing applications....
Sysadmin.ID
2 min read
Step-by-Step NextCloud Installation on Ubuntu 22.04.

How to install NextCloud in Ubuntu 22.04

What’s NextCloud Nextcloud is an open-source software suite that offers a secure, self-hosted alternative to popular cloud storage and productivity platforms....
Sysadmin.ID
8 min read
How to reset root password.

Reset root password on CentOS 7

Edit boot menu on-the-go 0. reboot the CentOS 7 and press ESC when GRUB menu show up on the screen and...
Sysadmin.ID
18 sec read
Freeing ext4 reserved blocks with tune2fs in Linux

Free ext4 reserved blocks with tune2fs

Check disk usage Check size of Reserved block count Change Reserved block count to 0% Check disk usage
Sysadmin.ID
18 sec read

Send Xymon/Hobbit Alerts to Slack Channel

How to sent xymon/hobbit alerts to slack channel 0. create bash script to push xymon/hobbit alerts to slack vim /etc/xymon/scripts/alert_to_slack.sh #!/bin/bash...
Sysadmin.ID
22 sec read

KVM/Archipel enable ttyconsole on guest vm with virsh

Debian Jessie Guest VM + Enable and start serial console systemctl enable [email protected] systemctl start [email protected] + Check status systemctl list-units...
Sysadmin.ID
24 sec read

Fix courier imapd.pem error PEM routines no start line

Error courier imapd.pem file tailf /var/log/mail.log imapd-ssl: couriertls: /etc/courier/imapd.pem: error:0906D06C:PEM routines:PEM_read_bio:no start line How to fix vim /etc/courier/imapd-ssl Make sure dhparams.pem...
Sysadmin.ID
14 sec read