moint is a fantastic utility that can be installed on Linux or Mac OS X and provides the ability to monitor services running on your server. These could be apache, mysql, bind or any other service you need to be up and running. After installing monit, you create a config file containing information about the [...]
I have been getting the following error when trying to compile monit for my CentOS server:
make: *** [y.tab.c] Error 127
To resolve it, I simply installed bison:
yum install bison
Then run configure again:
./configure
make && make install
And that fixed the problem! Hope that helps someone.
If you are looking for an easy way to find RPMs for your favourite linux distribution, there are many options out there. However none seem to have the easy of use and search capabilites of rpm.pbone.net. The service is easy to use and covers all the major distributions and version. Very handy.
We use Postfix as a dropin replacement for Sendmail on our servers. We wanted to configure postfix to relay email via our internal mail server for internal email addresses, and send directly if the email address was external.
To do this, follow these steps:
Edit the /etc/postfix/transport file and add the following line:
myinternaldomain.com smtp:[ipaddress]:25
Edit the [...]
If you want to covert from epoch (number of seconds since 1970) to a more human readable format, you can use this simple perl script:
#!/usr/bin/perl
$time = localtime($ARGV[0]);
print “$time\n”;
Save it as epoch.sh and make it executable, then simply issue the following command from the command line:
$> ./epoch.sh 1211926097
Wed May 28 08:08:17 2008
It’s that easy!
If you have zipped up a directory from a Mac OSX machine and unzipped it on a linux box, chances are you have heaps of hidden files that look like ._myfile and ._mydirectory - these are files that OSX uses to keep track of additional information about your files.
To remove these, do the following at [...]
I’ve been trying to work out how fast a server that I maintain is (in Mhz). The simplest way to do this is to follow these instructions:
Enter the following command:
dmidecode | grep “Current Speed” | head -n 1
And you should receive output like this:
Current Speed: 3400 MHz
This might sound like a really really simple thing to do, but it actually took me a little while to work out how to do this. To list all the available packages available for update, use the command:
yum list available
To update all packages on your system to the latest version, use the command:
yum update
Some [...]
To determine which version of Fedora or Redhat you are running, simply type:
cat /etc/redhat-release
This will then display something like:
Fedora Core release 5 (Bordeaux)