How To Enable HTTP/3 over QUIC in HAProxy

What’s QUIC QUIC (Quick UDP Internet Connections) is a transport layer network protocol developed by Google. QUIC supports a...

Sysadmin.ID
Nov 10, 2023 1 min read

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...

Sysadmin.ID
Apr 8, 2018 18 sec read

Hide PHP-FPM Version on NGINX

Check PHP-FPM version on NGINX HTTP response $ curl -I localhost/index.php HTTP/1.1 200 OK Date: Sat, 12 Aug 2017...

Sysadmin.ID
Aug 12, 2017 16 sec read

Hide Server Info Response on NGINX

How to hide `Server:` Response info on NGINX $ curl -I localhost HTTP/1.1 200 OK Server: nginx/1.4.6 (Ubuntu) Date:...

Sysadmin.ID
Aug 12, 2017 26 sec read

Free ext4 reserved blocks with tune2fs

Check disk usage df -h Filesystem Size Used Avail Use% Mounted on /dev/vda1 95G 82G 7.9G 92% / Check size of...

Sysadmin.ID
Feb 18, 2017 19 sec read

Block or ban ip with NGINX

How to block ip with NGINX 0. define block ip on nginx.conf vim /etc/nginx/nginx.conf http { geo $ban_ip { default 0;...

Sysadmin.ID
Dec 22, 2016 23 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
Oct 8, 2016 22 sec read

Redirect www and non-www http to non-www https on NGINX

How to set up redirect www and non-www http to non-www https o nginx config file vim /etc/nginx/sites-enabled/blackonsole.conf # http server...

Sysadmin.ID
Sep 3, 2016 16 sec read

CSS Fonts Missing: No ‘Access-Control-Allow-Origin’ header is present on the requested resource

CSS Fonts Missing on web The error some like: Font from origin 'http://css.blackonsole.org' has been blocked from loading by Cross-Origin Resource...

Sysadmin.ID
Sep 3, 2016 14 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
Jun 13, 2016 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
Apr 26, 2016 14 sec read

How to push AutoMysqlBackup files to Google Drive

What is AutoMysqlBackup AutoMySQLBackup with a basic configuration will create Daily, Weekly and Monthly backups of one or more...

Sysadmin.ID
Feb 9, 2016 44 sec read

How to add NAT iptables rules with CSF

What is CSF Config Server Firewall (or CSF) is a free and advanced firewall for most Linux distributions. How...

Sysadmin.ID
Jan 9, 2016 32 sec read

Fix AWStats on WHM/cPanel with NGINX

What is AWStats AWStats is short for Advanced Web Statistics. AWStats is powerful log analyzer which creates advanced web, ftp, mail and streaming server...

Sysadmin.ID
Dec 12, 2015 24 sec read

How to install Gitlab in Ubuntu 14.04

What is Gitlab GitLab is a web-based Git repository manager with wiki and issue tracking features. How to install Gitlab in...

Sysadmin.ID
Nov 1, 2015 24 sec read

How to Install Archipel on Linux Ubuntu

What is Archipel Archipel is a solution to manage and supervise virtual machines. No matter if you have a few locally...

Sysadmin.ID
Oct 17, 2015 7 min read

All Stories

:: update centos 5.5 to 5.6

:: how to update linux centos 5.5 to 5.6 # yum update :: checking centos version # cat /etc/issue CentOS release...

Sysadmin.ID
May 11, 2011 13 sec read

:: installing postgresql on linux debian

:: what is postgresql please take a look this :: how to install postgresql on debian # aptitude install postgresql ::...

Sysadmin.ID
May 8, 2011 10 sec read

:: enable fastcgi php on lighttpd

:: how to enable php-cgi on lighttpd + configure lighttpd for php fast cgi # vi /etc/lighttpd/lighttpd.conf ### add some line...

Sysadmin.ID
May 7, 2011 14 sec read

:: enable / disable visual editor on wordpress

:: how to disable / enable visual editor on wordpress 0. logging in to your wordpress dashboard, 1. clicking on your...

Sysadmin.ID
May 7, 2011 9 sec read

:: installing php5 on linux debian

:: what is php please take a look this :: how to install php5 on debian # aptitude install php5 php5-cli...

Sysadmin.ID
May 7, 2011 13 sec read

:: ssh [scp] login without password authentication

:: install dependency installing ssh-client (Debian) # aptitude install openssh-client :: configure ssh / scp login without password authentication + generate...

Sysadmin.ID
May 7, 2011 41 sec read

:: virtual host on lighttpd

:: how to setup ligttpd vhost on linux debian + create directory for vhost website # mkdir -p /var/www/vhost/blackonsole.org/{http,logs} # mkdir...

Sysadmin.ID
May 6, 2011 28 sec read

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