Category Archives: OS

Linux Practical Security Course

Dear Members ,
I am happy to announce that Linux Practical Security by LZH Project is complete. We will launch it shortly. Please support us by buying and rating this course. For first 20 buyers there will be a discount of $5. Total cost is $25. You can also book your copy by sending me email to learning@itpings.com Please take a look at the introductory video here:

Unable to Connect “The Squid Error “

So today i had a strange problem when i was only able to access google.com and not other sites. I was able to browse gmail, but not mail ru. Everything was working fine but out of no where this error “Unable to Connect” appeared on my Browsers. It was kinda strange, since i made no changes to my system” Also i was not sure if it’s the system or the Gateway.
Observation on System:
1) Both Firefox and Chrome giving the same problem.
2) I was able to browse with Chrome if Ultrasuf Extension was enabled.
3) Firebug reported “Aborted” in the Net tab

Steps taken:

Restarted the System
Changed the IP address
Result:
System Not Fixed Continue reading

How to mount .bin and .cue in Linux

This Howto is to show that how we can mount “.bin” and “.cue” files on Linux without burning them on CD.
First we need fuseiso
On Suse Linux use yast to download fuseiso
Once downloaded use the following commands as a non root user:

Create Directory:
Create a directory in home directory of user , i called it mountbin
salman@GENX:~>mkdir mountbin <–
Now use the following command to mount “file.bin” file on mountbin directory

fuseiso -p <path to file.bin>  /home/mountbin

You will see the directory mountbin mounted on nautilus

When you need to unmount use:

fusermount -u <path to mount>

Thanks,

Salman

 

CONVERTING CISCO 7940 PHONES TO WORK WITH ASTERISK / ELASTIX

This is a third part of Hosting Cisco Phone Files on TFTP Server, to make Cisco Phones work with SIP Server such as Asterisk / Elastix.

You can Download the third part from here:  CONVERTING CISCO 7940 PHONES TO WORK WITH ASTERISK- Elastix -Part III

 

Thanks,

Salman Aftab

Setting up Linux DHCP Server for Cisco Phone Files PART -II

This is the second part of three part series. In this part we will setup DHCP Server on our Linux box. This DHCP will provide automatic IP addresses to our Cisco Phones.(If it’s set to YES)

So Lets setup a simple DHCP Server on Linux.

You can Download the Pdf from here Setting up Linux TFTP Server for Cisco Phone Files -Part II

 

Don’t forget to Comment

Thanks,

Salman Aftab