I always thought that I was a command line guru but recently a pretty silly question had me, I opened Windows DOS Prompt by typing cmd in run . It landed me in the base of my user folder i.e D:\document and settings\MyUserName>

Now I wanted to jump to drive C:\ to run a program
I kept trying with cd C:\ and C:\ or chdir C: but they were wrong. 🙁

I wasted a good two minutes before realizing that the correct way to change drive in DOS prompt is to just enter the the Driver letter of the partition where you want to go

all I had to do was to type c: and that would take me to C drive
the example is also show below



Change dos drive

Change dos drive

We all know that how insecure is FTP, it sends your password in simple plain text and anyone can read it just as easily you are reading this post. in spite of this most people still use FTP instead of SFTP and Telnet instead of SSH.
However due to these security concerns, now many vendors have started to exclude the FTP from their systems and all you have available is SFTP
Many are faced with a challenge when for the first time they have to connect to a SFTP server with Filezilla which is one of the most commonly used and free Windows FTP client)

connecting to SFTP via Filezilla is fairly straight forward

just in the address location window you have to add sftp with ftp address like sftp://theftpaddress , if you were first connecting to than now you have to write in address bar sftp:// and Filezilla will handle the rest
Here is a screen-shot of the same
SFTP Filezilla

Snoop is the Solaris equivalent to tcpdump,
Just like tcpdump you need to specify a network interface which you want to tap, otherwise it will default to the 1st interface

The command syntax for a basic capture would be

snoop –d ce2 –o /tmp/output.cap

here ce2 is the network interface whereas the output has been pushed in output.cap file in tmp directory , you can download the file using ftp/sftp and analyze using wireshark

There are many instances when for want to run snoop for longer intervals of time to capture some specific even in network traffic . in this case you can force snoop to run in background using nohup and &

nohup snoop -d ce2 -s 2000 -o /tmp/backgroud.cap &

DONOT close the snoop window do exit to close the terminal .. .otherwise the snoop will stop

If you are looking for a SIP client for blackberry than unfortunately you are out of luck, No SIP or VoIP Client for Blackberry exists to date

Although things like Google Talk work on a blackberry but those are not true ‘sip clients’ since they are tied to the network of respective software vendor, Having a SIP client on you blackberry would allow you to configure any voip provider of your own choice on your handset and you can even connect it with a local asterisk PBX and make free calls between places where you have these PBX placed, all this can save you a lot of money over long distance calls

Perhaps this is the reason that RIM has not yet allowed developers access to the necessary API and documentation for the development for a Blackberry SIP solution