Search:

I noticed that one of our VM's clocks wasn't being updated correctly on Linux CentOS VM that we are running on a XenServer. I did a number of things to confirm that NTP was updating, but for...

Many System Administrators manage networks in which guests are granted web access. The task of allowing users onto your network is fairly straightforward. However, making sure that those users comply...

We manage a large number of FTP accounts for various clients, and occasionally find that one of them gets hacked into. Normally the cause is obvious, the client has an extremely poor password like...

Thanks for the great feedback everyone. It's important to remember that this test is designed to be taken by someone who has access to both MAN pages and to Google. This should help the interview...

We are owned by IQnection.com. The hosting service that they provide rocks. Email me if you want any info or if you want to get comparative pricing. gcawood[at]LinuxForum.com

We do not charge our clients for additional IP addresses. If they need them, they should have them! Yeah, you heard me... FREE BABY FREE!

Take a look at Nagios. It's software, not a service, but it's great and very reliable. I would recommend that you consider handling your own monitoring with this application instead of relying on a...

Of course! They need to be on different hardware so they will need to be on different servers. Otherwise there is no point at all in having more than one name server!!!

Best practices would say that you should only open the ports on a server that are being used by an application. Doing anything else is bad news. Also, best practices say that you should not run a...

From a web developers viewpoint, I'm not a big fan of reseller hosting. I don't see any reason why a web developer should pretend to be a hosting company when they have virtually no control over any...

It entirely depends on your application. If you are hosting sites that require lots of disk space, or have heavy disk i/o, then VPS is a bad choice and you are better off with a dedicated server....

Unfortunately, in hosting there are many ways the buy less than what you are being shown. Shared CPU's, Shared Memory, Shared O/S. I suggest finding a host that offers VPS servers that are built on...

Great question. In my experience, you have 4 main things that you have to stay on top of.

1) CPU
2) Memory
3) Disk
4) Network

`top -c` will give you a good indication of CPU & Memory, but...

-> Rob... now you will have to actually take the test. HA!

Hiring a junior Linux System Administrator can be a challenging task, especially if you are interviewing for someone who is above your own Linux skill set! How do you know for sure that they are...

If you have any sort of sensitive documentation or private web application that you want to secure behind a username and password field, then .htaccess is a simple and easy way to start. .htaccess...

by default:
`last` uses /var/log/wtmp (shows a list of users who logged in)
`lastb` uses /var/log/btmp (shows bag login attempts)

Cool. Thanks!

Do you know if iPhones have an App similar to this for Nagios? I have tried some of the free/trial Nagios apps in the app store, but I haven't been able to find anything that I am really happy with...

So, this may be a strange question to ask, but we have a TON of Dell R-200 servers in inventory that we don't know what to do with!!

We recently did an upgrade and we don't need them anymore. ...

Hi Toni,
Setting up a web server without using cPanel or Plesk is simple. Essentially, all you would need to do is download the installation media of your preferred Linux OS, run through the...

Finding out how much space your files are using in Linux is a bit of a chore compared to the Windows world. (right click, properties) However, Linux comes with a handy tool `du` that will list how...

The `clear` command is one of the most handy commands to know if you are a command line user in Linux. As you are moving through directories, `cat`ing files, or any number of standard tasks, your...

There is a little known command in linux that is very handy when scheduling a task. Normally server administrators prefer using CRON for handling all scheduling. However, CRON is primarily designed...

chmod is a Linux command that will let you "set permissions" (aka, assign who can read/write/execute) on a file.

Usage:
chmod permissions file
OR:
Usage:
chmod...