Tutorials

:: CentOS 6: Postfix and Dovecot

Learn how to install and configure Postfix and Dovecot on CentOS Linux to set up a robust mail server. This guide...
Sysadmin.ID
53 sec read

:: nginx : www to non-www domain

Learn how to effortlessly redirect traffic from your www domain to a non-www version using Nginx. Follow our simple steps to...
Sysadmin.ID
9 sec read

:: Banned countries ip on CSF

Learn how to effectively ban countries' IP addresses using ConfigServer Security & Firewall (CSF) by editing the csf.conf file to include...
Sysadmin.ID
11 sec read

:: Clear BlackList Authentication on SolusVM

If you've been locked out of SolusVM due to multiple failed login attempts, your IP may have been blacklisted. Learn how...
Sysadmin.ID
13 sec read

:: named: error (broken trust chain) resolving

Encountering a broken trust chain error while using BIND? Discover how to quickly resolve this issue by adjusting your date and...
Sysadmin.ID
10 sec read