When I first started researching this it appeared the iPhone and iPod Touch might not be able to run multiple processes, but I was starting to wonder how in the world could that be. This does not appear to be the case though and instead it appears that Apple has set forth some fairly strict…
Nagios is a great solution for monitoring hosts, networks, and services on one or more networks. Nagios will monitor as many services as needed per device and then will send an alarm if one or more services has an issue. By default Nagios monitors a bunch of services such as ICMP, HTTP, etc. but can…
This article describes how to add a link to the Information sidebox that links to a new page in the defined pages section. You will be required to create files, modify files, and insert SQL code into the MySQL database. In the instructions below yourpage or YOURPAGE is the title of the page you are…
First let me say I am not very familiar with Perl or with CPAN so this is to hopefully help out anyone else in my shoes. I received the below type of error during various attempts at installing items from the CPAN shell. I will provide a couple examples of the errors as well as how…
The below error message was received after starting the CPAN shell and running “install Class::Accessor”. It was after upgrading the CPAN.pm message so to resolve this issue either just reload or upgrade and reload. Both sets of steps are detailed below. Error: Can’t use string (“CPAN::Tarzip”) as a HASH ref while “strict refs” in use…
To locate and replace a string of text in a file using use the below text. shell# vi filename Once in vi use the following: :%s/string/new-string/ <enter> That will replace any instance of string with new-string.
The file located in /etc/sysconfig/networking/profiles are created by the GUI network interface management tool. These files should not be edited manually and when changes need to be made they should be made directly to the files as shown below. CentOS 5 is easy to get around from the command line and it is beneficial to…
If you are in process of installing the NRPE daemon as an xinetd service for Nagios monitoring capabilities you may run across this error in /var/log/messages. If you have started xinetd by typing the following: shell# /etc/init.d/xinetd start but you do not see the NRPE service listening by using netstat: shell# netstat -an | grep…
This error message was received when attempting to run an NRPE command from the shell. The fill error is below followed by how the issue was resolved. The error has been posted on the next page because of its length.