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Sun Solaris

Tips and Tricks in UNIX file system.

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All the disks (filesystems and swap areas) that Solaris already knows about are listed in the file /etc/vfstab. Under Linux and other Unix variants this file [...]

Tips & Tricks

Common Internet File System,CIFS, CIFS protocol,cifs login error

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The Common Internet File System or CIFS is a network filesystem based on protocols developed by Microsoft. Since this system was developed [...]

Tips & Tricks

Increase The Maximum Number Of Open Files in linux or File descriptors in linux

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Tips & Tricks

How to change port in sendmail email server

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cd /etc/mail vi sendmail.mc

Find the line : dnl DAEMON_OPTIONS(`Port=submission, Name=MSA, M=Ea’)dnl Change it to : DAEMON_OPTIONS(`Port=submission, Name=MSA, M=Ea’)dnl

If you haven’t done so already, Find the line : dnl DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA’)dnl
Change it to : DAEMON_OPTIONS(`Port=26, Name=MTA’)dnl
to enable non-local access to the SMTP port.

Save and exit vi
make -C /etc/mail
/etc/init.d/sendmail restart

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How to change port in postfix email server when isp blocks port 25

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1. Edit the file /etc/postfix/master.cf and find the line below. You can comment the line below by adding # in front of the line to disable [...]