The certs are actually already inside the chroot, all in one big file “/var/spool/postfix/etc/ssl/certs/ca-certificates.crt”, all we have to do is […]
Monthly Archives: August 2012
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How to change source SMTP IP address in sendmail
Follow the steps below, if you want to change the source SMTP ip address in sendmail. 1) change the line […]
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Cpanel Exim: 550 error unroutable address
I suddenly cannot receive email for all emails under my domain name. The following text message will append to the […]
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How to change the hostname of a Linux system
Permanent hostname change on Debian based systems Debian based systems use the file /etc/hostname to read the hostname of the […]