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How do I find out my RHEL (Red Hat Enterprise Linux) 6 Linux kernel version number running on HP server?


RHEL version 6.1 has been released with new features and improvements. How do I upgrade my HP server running RHEL v6.0 to v6.1 using RHN?


How can I convert newline [ line break or end-of-line (EOL) character ] between Unix and Windows text files?


I‘m getting the following errors in my log file whenever I use phpinfo() function:

[10-Jan-2011 18:39:08] PHP Warning: phpinfo(): It is not safe to rely on the system’s timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected ‘America/Chicago’ for ‘CST/-6.0/no DST’ instead in /home/servers/http/dev/testpc.php on line 2

How do I fix this problem under UNIX / Linux php running Apache or lighttpd web server?


I‘m using the ldd command to get information about /usr/local/nginx/sbin/nginx binary and I see library. However, I’m unable to find out this file anywhere on the system? What is and how do I copy this file?

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How can I create a text file from the command line on Ubuntu Linux? How do I create an empty file from the command line under Ubuntu operating systems?

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I‘m running RHEL on HP server. This server allows to login to reset of the LAN from the Internet. How do I find out failed login records under Linux operating systems?

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