/etc/sysconfig/syslog contains general parameters applicable to syslog-ng.
/etc/syslog-ng/syslog-ng.conf.in is the template used to create the configuration file /etc/syslog-ng/syslog-ng.conf, which is the configuration file actually used by syslog-ng. both files have the same syntax.
syslogd and syslog-ng share two concepts that you have to understand to the able to configure either one:
Commands to administer apache2
Apache2 configuration files
Create RSA Key Pair
VMM must be loaded before any of VMs are started. VM in xen are called as domains. Privileged domain, called domain0 is an interface to communicate directly with an adminstrator to access the physical hardware of the host machine.
An unprivileged domain is called domainU. To install Xen, the following package is needed.
After the installation, the reboot is required to boot into Xen bootloader. In case the system is not booting properly, you can switch back to the non-virtualized system and disable the firewall.
To manage Xen domains at the commands line.
Automate Domain Startup and shutdown
Understand Xen Networking
Migrate a Guest Domain
find and xargs do go very well together: find to locate what you're looking for, and xargs to run the same command on each of the things found.
Traditionally, an advantage to xargs was its ability to handle long command lines before failing, unlike some other commands. This command:
rm `find tmp -maxdepth 1 -name '*.mp3'` is intended to remove all tmp/*.mp3 files (and ignore any subdirectories), but can fail with an "Argument list too long" message. This exact equivalent: find tmp -maxdepth 1 -name '*.mp3' -maxdepth 1 | xargs rm does exactly the same thing but will avoid the problem by batching arguments up. More modern kernels (since 2.6.23) shouldn't have this issue, but it's wise to make your scripts as portable as possible; and the xargs version is also easier on the eye. You can also manually batch arguments if needed, using the -n option.
find tmp -maxdepth 1 -name '*.mp3' -maxdepth 1 | xargs -n1 rm will pass one argument at a time to rm. This is also useful if you're using the -p option as you can confirm one file at a time rather than all at once. Filenames containing whitespace can also cause problems; xargs and find can deal with this, using GNU extensions to both to break on the null character rather than on whitespace:
find tmp -maxdepth 1 -name *.mp3 -print0 | xargs -0 rm You must use these options either on both find and xargs or on neither, or you'll get odd results. Another common use of xargs with find is to combine it with grep. For example,
find . -name '*.pl' | xargs grep -L '^use strict' will search all the *.pl files in the current directory and subdirectories, and print the names of any that don't have a line starting with 'use strict'. Enforce good practice in your scripting!