How to Install Webmin on OpenFiler

Webmin is a web-based interface for system administration for Unix. Using any modern web browser, you can setup user accounts, Apache, DNS, file sharing and much more. And Openfiler is a network storage OS with web based management user interface powered by Linux. Combination of both Webmin and Openfiler definitely help non-Linux or non-IT guy manage the whole Linux file server.

Today, I will not share how to configure Openfile here and I just would like to share about How to Install Webmin on OpenFiler.

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April 24, 2011 · Filed Under How's To

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lppasswd: Unable to open passwd file: Permission denied

The lppasswd command used to adds, changes, or deletes passwords in the CUPS digest password file which refer to /etc/cups/passwd.md5.

In order to create a new CUPS administrator user, enter a command: lppasswd -g sys -a username.

I’m having a problem creating a new user with error message: “lppasswd: Unable to open passwd file: Permission denied” today.

lppasswd

And I just would like to share the solution as below:
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November 11, 2009 · Filed Under How's To, Open Source

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How To Capture PUTTY Session Log

PuTTY is a free implementation of Telnet and SSH for Win32 and Unix platforms, along with an xterm terminal emulator. It is written and maintained primarily by Simon Tatham.

Here I would like to share How To Capture PUTTY Session Log.

1. To capture a session with PuTTY, open up a PUTTY.
2. Look for Category Session -> Logging
3. Under Session Logging, choose “All session output” and key in your desire log filename(default is putty.log).
Putty Session Setting

4. This should create the file in the location you choose and start loggin everyting from the session.
5. For capture Cisco Router or Switches(I tried with Nexus 1000V on VMware vSphere), type ‘show running-config’.
Cisco Show Run
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June 23, 2009 · Filed Under How's To, Tips

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How to Add Date And Time To Your Bash History on SuSE Linux

The SuSE Linux Enterpise 10 which came together with bash-3.x RPM and HISTORY command show insufficient information(at least for me) as example below:

1 vi /etc/hosts
2 rpm -qa|grep bash
3 cat /etc/SuSE-release
4 history

For any SuSE Linux Enterprise server 10 that managed by more than one people, I would suggest you should make history command more user friendly and more information for auditing purposes.

Edit /etc/bash.bashrc and append to the bottom:

export HISTTIMEFORMAT="%h/%d - %H:%M:%S "

save it.
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June 7, 2009 · Filed Under How's To, Open Source, Tips

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How to clean EMC CX 3-80 Dirty Cache?

For the past weekend, it’s a really a nightmare for me. My office EMC Clariion CX3-80 storage box was crash(halt) and LUNs was not accessible for more than fourty over servers included Asia Pacific and Europe region.

The storage box forced to reset and found dirty cache on certain LUNs. Here I would like to share how to list and clear dirty cache.

List LUNs cache
# cd /opt/Navisphere/bin
./navicli -h 192.168.1.1 luncache -list
OR you can save the output into temporary location.
./navicli -h 192.168.1.1 luncache -list > /tmp/listluncache

Note: IP Address 192.168.1.1 is referring to your SPx controller IP Address.

Open /tmp/listluncache and search for word “YES”
# view /tmp/listluncache

For an example, you will see:

LOGICAL UNIT NUMBER 4912
LUN Offline (Cache Dirty Condition): YES

LOGICAL UNIT NUMBER 4913
LUN Offline (Cache Dirty Condition): YES

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May 13, 2009 · Filed Under How's To, Tips

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