Featured »

March 2, 2022 – 2:00 pm

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 …

Read the full story »
Networking

Unix and Linux network configuration. Multiple network interfaces. Bridged NICs. High-availability network configurations.

Applications

Reviews of latest Unix and Linux software. Helpful tips for application support admins. Automating application support.

Data

Disk partitioning, filesystems, directories, and files. Volume management, logical volumes, HA filesystems. Backups and disaster recovery.

Monitoring

Distributed server monitoring. Server performance and capacity planning. Monitoring applications, network status and user activity.

Commands & Shells

Cool Unix shell commands and options. Command-line tools and application. Things every Unix sysadmin needs to know.

Home » Archive by Month

Article Archive for May 2006

Changing time

May 11, 2006 – 12:12 am
time clock watch

Unix systems record several time parameters associated with files. Sometimes you might need to set time parameters on a file to a particular value. Or you might need to modify a file without changing any …

Distributed password cracking with Medussa

May 10, 2006 – 2:43 pm
Security concept: Golden closed padlock on digital background, 3d render

Medussa is a password cracking application that supports distributed processing. One node acts as the Medussa server and the rest of the nodes are running the client application. The server node, in addition to running …

Mountpoint permission problem in Solaris

May 4, 2006 – 6:45 pm
sun_solaris_0002

The following condition was originally discovered in OpenSolaris 11 (Bug ID: 4697677). This problem occurs when you do mkdir -m 700 on a mountpoint before mounting it. This superceeds whatever permissions you might give to …

Managing your MP3 collection

May 3, 2006 – 10:40 am
storage barrels cluster hpc

Remember all the MP3s you ripped or downloaded sitting in that big directory somewhere on your hard drive? Getting those files organized by genre, performer, or album can be daunting task if the MP3s are …

Informix database migration on HP-UX

May 1, 2006 – 10:51 am
construction loader

Rather than rebuilding an Informix database on the new HP-UX server, it possible to migrate the existing installation from the old server. The database resides on raw disks with transparent volumes that are not visible …