Learn how to do CyberPanel change hostname properly with SSL, Postfix, and Dovecot configuration. Follow exact commands and avoid errors. Our CyberPanel Support Team is always here to help you.

Complete CyberPanel Change Hostname Walkthrough with DNS and SSL

Managing servers often means making hostname adjustments. For anyone using CyberPanel, the process requires a few precise changes, from panel setup to mail service configuration. Below you’ll find everything laid out in one place, with each command you need to execute. This guide focuses on CyberPanel change hostname in a straightforward way without skipping the essentials.

Setting up Hostname on CyberPanel with SSL

First, ensure your root domain is already configured in QuicCloud DNS Zone. After that, log in to CyberPanel.

1. First create a Website – this site will act as your hostname website.
2. Head to SSL > Hostname SSL, pick the website you just created from the dropdown, and click Issue SSL.

Now open SSH and log in as root:

sudo su -

nano /usr/local/lsws/conf/httpd_config.xml

Then Find the <address> section and insert the following (replace with your hostname and port):

panel.my-domain.com:2083

proxy cyberpanel panel.my-domain.com:2083 100 60 60 0 0

After that Restart LiteSpeed after saving changes:

/usr/local/lsws/bin/lswsctrl restart

Next, go to CyberPanel → Hostname Website → File Manager → create .htaccess under public_html (if not present) and add this:

BEGIN CUSTOM PANEL WITHOUT PORT

RewriteEngine On

RewriteRule ^(.*)$ HTTPS://panel.my-domain.com:2083/$1 [P]

END CUSTOM PANEL WITHOUT PORT

This way, the panel loads without port issues.

Configuring DNS in QuicCloud

• Navigate to QuicCloud → DNS Zone → Add New Record. Choose Type A, set the host as panel, and point it to your server IP.
• Then open Settings > Domain Alias and add your alias (example: panel.my-domain.com).
• Inside MyDomain > CDN Config, toggle Bypass CDN on and off. Reverify DNS, and within 5–10 minutes the status should be OK.

Optional Security – Restrict Panel Access

For added protection, restrict panel access to your IP in the .htaccess:

BEGIN PROTECT PANEL

RewriteEngine On

RewriteCond %{REMOTE_ADDR} !^123\.123\.123\.[0-255]

RewriteRule ^.*$ - [F,L]

END PROTECT PANEL

Setting Hostname for Postfix and Dovecot

Run the following to set hostname:

hostnamectl set-hostname server.domain.com

postconf -e ‘myhostname = your.hostname.here’

Update these files with the new hostname:

• /etc/hosts
• /etc/mailname
• /etc/dovecot/dovecot.conf

Check with:

grep -ril cyberpanel.example.com /etc/

If IPv6 is active, also add your hostname to the ::1 localhost line in /etc/hosts.

For a quick route, run:

HostName='your.hostname.here' ; hostnamectl set-hostname ${HostName} ; postconf -e "myhostname = $(hostname)"; echo $(hostname) > /etc/hostname ; echo $(hostname) > /etc/mailname;

Restart services:

systemctl restart postfix||service postfix restart && systemctl status postfix -l||service postfix status; systemctl status postfix -l||service postfix status; systemctl restart dovecot||service dovecot restart; systemctl status dovecot||service dovecot status;

Monitor logs while sending/receiving mail:

tail -f /var/log/{maillog,exim_mainlog,exim_rejectlog,mail.log,mail.err,syslog} 2> /dev/null | grep -vEi 'Firewall|ftp'

Persisting Hostname Across Reboots

On some cloud servers, DHCP resets hostname. To persist, use:

vpsname="your.hostname.here"; echo "hostnamectl set-hostname ${vpsname}" >> /etc/rc.d/rc.local

Or via root crontab:

@reboot hostnamectl set-hostname your.hostname.here

Final Touch – Hostname SSL

Lastly, go back to CyberPanel, pick your domain in Hostname SSL, and click Issue SSL. From here, you can now access CyberPanel at:

https://domain.tld:8090

Replace domain.tld with your domain name.

[If needed, Our team is available 24/7 for additional assistance.]

Conclusion

Carrying out a CyberPanel change hostname involves precise edits and DNS checks, but once configured, it ensures smoother access and proper mail server identity. With SSL in place and Postfix/Dovecot updated, your panel is ready for secure use. By following these steps, you’ve completed a proper CyberPanel change hostname setup from start to finish