Create network boot for concurrent RHEL6.5 installation

29 January 2015 Leave a comment

Requirement

  1. Installed RHEL6.5
  2. RHEL6.5 x86_64 DVD installer
  3. Services : dhcp, NFS, tftp
  4. Familiar with vi text editor (or nano, etc)

Advantage

  1. Installation can be done concurrently without DVD
  2. Time and Money saving

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RedHat Linux network redundancy using interface bonding

11 May 2014 1 comment

This notes written down when facing requirement to make barco wall-display working with redundant network link. Eventhough setup barco controller is not part of my responsibility, I still want to help our customer to fulfill their needs – for the sake of knowledge sharing.

Specification

This configuration tested using hardware and software specification

  1. Linux distribution RH7.2 (Enigma) i386
  2. network interfaces (identified as eth0 & eth1)

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FreeBSD notes

26 April 2014 2 comments

This is my own notes, work faster & reduce time for googling :D Read more…

Categories: Uncategorized

Solaris 10 Sys Admin Notes

26 April 2014 Leave a comment

This is my own notes, work faster & reduce time for googling :D
Read more…

Categories: Uncategorized

Clear Digi_PortServer_TS16’s buffer using Scheduler on Solaris 10

24 September 2012 Leave a comment

Problem

Description : Digi PortServer TS16 always hang after operating for hours, and need to hot-restarted.
Analysis of Problem : We assume device hang because of buffer over flow.
Solution : Create script with specific function (login to the device, clear all buffer, logout) and execute automagicaly with cron scheduler.

Figure 1. Digi PortServer TS16 connect to Solaris box via UTP Cable

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Catatan Shell Script

3 September 2012 Leave a comment

Filename Wildcards

The following characters are interpreted by the shell as filename wildcards, and any word containing them is replaced by a sorted list of all the matching files.

Wildcards may be used in the directory parts of a pathname as well as the filename part. If no files match the wildcard, it is left unchanged. Wildcards are not full regular expressions. Sed, grep, awk etc. work with more flexible (and more complex) string matching operators.

*
Match zero or more characters.
?
Match any single character
[…]
Match any single character from the bracketed set. A range of characters can be specified with [ – ]
[!…]
Match any single character NOT in the bracketed set. Read more…

Categories: bash scripting

Kill Zombie Process on Solaris 10 (or another *nix family)

30 August 2012 Leave a comment

    Requirement :

  1. Paham konsep Operating System secara umum.
  2. Paham konsep “process” pada unix family, utamanya Solaris.
  3. Terbiasa menggunakan OS Solaris10.
  4. Mau membaca & mencoba tulisan ini :D

Attention :

Tulisan ini adalah pengalaman pribadi saya, kalaupun bisa menjadi tips bagi pembaca sekalian ya alhamdulillah, tapi klo systemnya menjadi error saya tidak bersedia untuk dikejar-kejar. Read more…

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