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Linux Mail Delivery Failed With DNS Service Unavailable Error and Solution

by on January 5, 2008 · 0 comments

I get following error message for my postfix email server: “Mail Delivery Failed With DNS Service Unavailable Error and Solution”. How do I fix this problem?

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Buffer I/O error on device fd0, logical block 0 error and simply soultion

by on July 10, 2007 · 15 comments

Q. I’ve CentOS 5 server running on Dell hardware. I’m getting following error message in my /var/log/message file (some time message is also shown on console): Jul 05 12:04:05 dell01 kernel: end_request: I/O error, dev fd0, sector 0 Jul 05 12:04:05 dell01 kernel: Buffer I/O error on device fd0, logical block 0 Jul 05 12:04:18 [...]

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Postfix setup catch-all email accounts using /etc/postfix/virtual

by on July 6, 2007 · 10 comments

Q. How do I setup cacth-all email accounts under Postfix MTA? For example if an email send to me@domain.com, info@you.com and sales@you.com, should be sent to the same email address. This is useful if anyone of user mistypes an email address when they send it to me, or just guesses at a valid email address, [...]

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Linux Kernel panic VFS Unable to mount root fs and solution

by on May 3, 2006 · 6 comments

Q. I am using Linux on HP server and I am getting error that read as follows: Linux Kernel panic: VFS: Unable to mount root fs How do I solve this problem? A. Most modern distributions including Debian uses loadable kernel module for ext3 file system. So to read ext3/ext2 file system kernel must load [...]

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