What’s NextCloud Nextcloud is an open-source software suite that offers a secure, self-hosted alternative to popular cloud storage and productivity platforms. With a focus on privacy and control over...
Check disk usage df -h Filesystem Size Used Avail Use% Mounted on /dev/vda1 95G 82G 7.9G 92% / Check...
How to block ip with NGINX 0. define block ip on nginx.conf vim /etc/nginx/nginx.conf http { geo $ban_ip {...
How to sent xymon/hobbit alerts to slack channel 0. create bash script to push xymon/hobbit alerts to slack vim...
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 #...
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...
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...
What is AutoMysqlBackup AutoMySQLBackup with a basic configuration will create Daily, Weekly and Monthly backups of one or more of your...
What is CSF Config Server Firewall (or CSF) is a free and advanced firewall for most Linux distributions. How to add...
What is AWStats AWStats is short for Advanced Web Statistics. AWStats is powerful log analyzer which creates advanced web, ftp, mail and streaming server statistics reports ...
What is Gitlab GitLab is a web-based Git repository manager with wiki and issue tracking features. How to install Gitlab in...
What is Archipel Archipel is a solution to manage and supervise virtual machines. No matter if you have a...
What is this Puppet: a free (libre) configuration management utility. It runs on many Unix-like systems as well as...
What is Pound Load Balancer The Pound program is a reverse proxy, load balancer and HTTPS front-end for Web...
How to setup Postfix to fighting spam with PostGrey and RBL in Ubuntu Linux + Installing PostGrey apt-get install postgrey +...
:: Error in cronjob ERROR: Problem with internal logger (UpdateLogFile = /var/log/clamav/freshclam.log). ERROR: Can't open /var/log/clamav/freshclam.log in append mode (check permissions!)....
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