FreeNAS: another option for clustering environment

If you ever try to install the clustering environment like Exchange, MSSQL, you will fight with the problem of installing quorum disk. And the problem going bad if your server doesn't work well with NAS (HBA, etc. compatibility issues)

Long time ago, freeNAS was born, along with him was openfiler, etc. these are the simulation for NAS that was shipped with iSCSI, and many other protocols like: FTP, Samba, CIFS, etc. and a Web-based administration tool. And to make more convenient, they was shipped with VMware appliance as well... cool !

And you don't have to invest any NAS device, you just download the ISO (Live CD) or the VMware appliance of FreeNAS, turn it on, configure it! and you will have a NAS device that working through the iSCSI protocol

The remain, is to download iSCSI initiator (Microsoft provides one), and free on many Linux distribution. Configure it to work with your new NAS. You can map 1 iSCSI disk (on your freeNAS) to as much server as you want... you have your own Quorum disk

It works for both Windows, Linux as well. Beside that, freeNAS has many interesting features like: authentication through Active Directory, work as file server, scheduling for backing up, it is built on FreeBSD

Good luck!

Finding 1 candidate for QA position, good in system-programming (C#, C++) and Unix/Linux, DBMS is a plus

As my understand so far, there are many good candidates, they have their own blog, so i would use this chance to recruite them. I will search around blog Yahoo 360*, Blogger, Opera to find candidate, anyway, if you like this information, or know someone else, please drop me a message

This position is to work for CSC Vietnam, the most competitive, and attractive company in Vietnam

Using Tcl/Expect to automate your administration work, test telecom

After this post, i would like to add more about my project, the project's purpose is to provide ability to do remote commnand (on Windows, Linux, Unix, etc.) and file transfer.

This is a part of my research to do the project's purpose

plink (in putty package) to provide remote command ability
expect to provide ability to interact console application


Tcl/Expect commands:
I'm new to Tcl/Tk/Expect commands, syntax, so this is what i know so far

Using sharpSSH (C#) to write/customize your own sshclient

or even winscp (open source), or putty (is it possible?)

I was trying to do many investigations on SSH protocol, or some tools/ways like JRE. The purpose to do a remote command-line, and file transfer on all platforms: Windows, Linux, Unix, etc.

1. The first approach is to implement JRE application, but we need to maintain it by the time

2. Try to implement again with C# (and Mono) stupid way

3. Try to implement sharpSSH

Actually, I knew many way/tools to do that, but by the time, i forgot. Now, i'm going back. And i was tried PUTTY command-line family, and it was so impressive

Beside doing: compatibility test, between SSH protocol version, we need to do some test for sheel specification stuff (windows shell, cmd.exe, command.exe, bash, csh shell, etc.) convention between Windows, Linux

plink, pscp, psftp, so great! to do file transfer and remote command-line

That i was told about "client-side"

And here is server-side, for Unix, we used OS-standard, default sshd packages. But on Windows we used openSSH package, or copssh, the reason is, sometime sharpSsh cannot work with openSSH but copssh

Process special character like "\", "/", """, "'", "\\"

We are thinking about Cygwin as Linux env. for another linux-like ssh server

XDMP (X-Window protocol) for remoting export GUI on Unix/Linux

If you want to launch (export) a Unix/Linux GUI program on Windows or other Unix/Linux OS

First of all, on the local Unix/Linux, we need to "export" an environment variable "DISPLAY" to your destination host and the port number, eg:
# export DISPLAY=172.16.49.86:0.0

Then of the remote OS (destination), where you want to host your GUI program, you need to install an XDMP Server (eg: xming, Xmanager)

This is basic idea, you can google more information, I will add detail later. Don't forget to turn off any virus scanner programs, firewall

Load balance multiple network adapter cards

June 29
Load balance multiple network adapter cards
If you have multiple network adapters in a server and you want to make sure that the network load is balanced across the available nics, you can use the following Windows NT / Windows 2000 / Windows XP registry hack. This will insure that opened sessions are balanced between the adapters.

Hive: HKEY_LOCAL_MACHINE Key: SYSTEM\CurrentControlSet\Services\NetBT\Parameters Name: RandomAdapter Type: REG_DWORDValue: 1 enable