netstat

How do I check network connections under Linux using command line options?

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When I try to ping other UNIX / Linux / BSD or MS-Windows servers in our network I get the following message:

TTL Expired In Transit

How do I fix this problem?

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OpenNTPD is a Unix system daemon implementing the Network Time Protocol to synchronize the local clock of a computer system with remote NTP servers. How do I install OpenNTPD under CentOS / RHEL / Fedora Linux instead of default NTPD client / server?

{ 1 comment }

CentOS Linux v5.5 has been released. How do I upgrade CentOS Linux from version 5.4 to latest version 5.5 over the Internet?

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How do I upgrade to Redhat Enterprise Linux server to v.5.5 from 5.4 or earlier version?

{ 21 comments }

How do I upgrade CentOS Linux from version 5.3 to latest version 5.4 over the Internet?

{ 10 comments }

How do I restart Apache 2 web server under Apple Mac OS X UNIX operating systems?

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