Unix and Linux network configuration. Multiple network interfaces. Bridged NICs. High-availability network configurations.
Reviews of latest Unix and Linux software. Helpful tips for application support admins. Automating application support.
Disk partitioning, filesystems, directories, and files. Volume management, logical volumes, HA filesystems. Backups and disaster recovery.
Distributed server monitoring. Server performance and capacity planning. Monitoring applications, network status and user activity.
Cool Unix shell commands and options. Command-line tools and application. Things every Unix sysadmin needs to know.
Boot into one of the operating systems you would like to keep (i.e. Windows, Linux, etc.) and set its partition as “Active”. Reboot your system. If the system boots into the OS of your choice without going through the Solaris boot loader, then it is safe to remove or overwrite the Solaris partition.
Books have been written on the subject of awk and sed. Here’s a small sample of commands I put together over the years that are useful for everyday system administration tasks. Most of these tasks …
I’ve been using various Synology NAS devices for many years now, and they’re great. Well, almost. There are a few rough spots that don’t thrill me. These consumer-grade devices are designed to be difficult to …
I’ve been using various Synology NAS devices for many years now, and they’re great. Well, almost. There are a few rough spots that don’t thrill me. These consumer-grade devices are designed to be difficult to …
This particular WordPress issue appeared with version 5.3 and is refusing to go away. However, the problem here is not with WordPress but with the Apache ModSecurity. The particular ModSecurity rule in question is 200003 …
I’ve been using various Synology NAS devices for many years now, and they’re great. Well, almost. There are a few rough spots that don’t thrill me. These consumer-grade devices are designed to be difficult to …
Being a shutterbug and a digital hoarder can get expensive. A couple of days ago, my
TerraMaster D5-300 5-bay DAS crashed. Again. This time it was the power supply. I replaced it only to discover that …
The nfsiostat is an excellent tool for analyzing NFS performance. The only major problem with this utility is that it’s designed to be used interactively. It does not have logging or timestamping capabilities. I needed …
Cron is an indispensable tool for system administration. The difficulties in working with cron in a large environment stem from its decentralized nature. Cron jobs multiply like rabbits, and keeping track of them is not …
The nfsiostat is an excellent tool for analyzing NFS performance. The only major problem with this utility is that it’s designed to be used interactively. It does not have logging or timestamping capabilities. I needed …
As time goes by, NFS mounts multiply like rabbits. Added by many different people over the years, these entries present a dizzying variety of mount options – most are a copy-paste job that makes little …
Igor
Sr. Unix SysAdmin with twenty years experience supporting Solaris, HP-UX, AIX, IRIX, and Linux servers in a large distributed environment.

operating systems can either make or break your system that is why it is wise to choose a vey stable one.,.”
there are many different operating systems but of course i would still prefer to use linux for stability “”,
When my system boots my monitor flickers and sometimes my PC fails to boot telling me to insert the original windows xp disc to attempt a repair. If i restart my computer and i’m lucky, the PC survives the booting stage, and loads up xp then the flickering stops. But i still see faint lines on the display (like an interference or something). I’ve relocated my computer, plugged it directly to the power socket without my UPS, and i’ve also powered it up with the UPS without (plugging the UPS to the mains) all in the bid to check for any form of interference from the power supply or the UPS. Please help!
What is the difference between a system partition and boot partition?
And what are some examples?
We have many old macines-pentium 1 to 4 and want to use it like diskless system/ or booting from a remote computer using its resources-RAM and Hard Disk. What is the eaasisest option and references to it as this will help in extending LAN. Suggest freewares for it.