How to make a Virtualmin server (Ubuntu) a recursive DNS server
You might want to bring up your own name servers if you want to use Spamhaus that doesn’t like open resolvers like 1.1.1.1 Steps Check
Control Panels
How to get rid Virtualmin of Usermin for webmail so that Roundcube is the default
On a stock Virtualmin server, the default is Usermin for webmail. However, the industry standard appears to be RoundCube. There is some template manipulation you
How to find and fix Fuzz Faster U Fool attacks on a hosted cPanel server attacking ports 2083 and 2086
Fuzz Faster U Fool attacks is a technique whereby attackers scan cPanels servers at incredibly high speed on ports 2083 and 2086 and look for
WHM/cPanel – List of all ports and a script to test them
Here is a Bash script to test all inbound cPanel ports: 20 FTP 21 FTP 22 SSH 25 SMTP 26 SMTP 53 DNS 80 HTTP
Roundcube Webmail on server slow (but actually not working and no errors) – just hanging
According to cPanel support, if your Roundcube is slow, you should read this: https://support.cpanel.net/hc/en-us/articles/360049982694-Webmail-Login-stuck-on-Logging-you-in And do this: cat /usr/local/cpanel/logs/php-fpm/error.log Look for: WARNING: [pool user_username] server
cPanel Transfer Tool Hangs
The cPanel Transfer Tool is incredibly powerful, but at times and given the wrong servers/bandwidth, it might hang. Use top to look for rsync processes.
Apache on WHM/cPanel randomly stops working – intermittently – possible PHP-FPM issue
Symtoms Randomly, perhaps once or twice a month, Apache completely stops serving sites. No obvious errors, except web sites aren’t loading anymore. From HTTP monitoring
After a Virtualmin IP address migration, the server has the old IP as NAT
When you change the IP address on a Virtualmin server, the server will detect the IP address has changed and prompt to update all the
How to get chroot jailkit working in Virtualmin
Recipe: apt-get install webmin-jailkit Once it is installed you will find a new section in Webmin -> System -> Jailkit Jail Manager Then go to
How to downgrade a Virtualmin Pro license back to GPL
Here is the command: virtualmin downgrade-license –perform