In order to scp from an outside machine to an inside machine, our gateway machines vorlon or shadow must be used. To get to the end machine, 2 hops are required. This command utilizes scp's built in funcitons to allow a single command for putting a file from machine a -> gateway -> machine b securely:
From Machine A:
scp -Cp -o "ProxyCommand ssh username@vorlon.eas.gatech.edu nc machineb.xxxx.gatech.edu 22" c.txt username@machineb.xxxxx.gatech.edu:c.txt Please note that this is all one line, and you should substitute your username in both places, even though they may be the same. c.txt is the example file name.
Unless there is a backup (done by yourself or ISG) there is no way to recover a file which has been deleted. Unlike Windows, UNIX does not provide a "trash can" to restore deleted files.
To login to the Unix and Linux based servers in EAS you should use an SSH client which can be likened to a secure telnet client.
For Windows based machines a software package such as SecureCRT or Putty should be used.
For Macintosh based machines, Fugu is your software.
For Unix and Linux machines, type "ssh [username]@[server name]" a connection will be established.
If you log into vorlon.eas.gatech.edu, using SecureCRT, you can change your password.
To change your password on a UNIX or Linux machine, open a secure shell session to the server you wish to make the modification to. At the UNIX prompt type "passwd" and press enter. The system will ask you for your current password, then for your new password twice. (Your typing will not show up on the screen).
Passwords must be between 7 and 23 characters, not related to a dictionary word, and contain at least one non-alphabetical character (i.e. a number or special character).
When you have successfully changed your password, the system will tell you that "authentication tokens updated successfully". You can then logout of the server by typing "logout" and pressing enter.
By typing: "sftp [username]@[server name]" a connection will be established.
To access files from the Unix and Linux based servers in the EAS you should use a secure ftp client, WinSCP client (Windows systems), or Fugu client (Mac systems).