Unix/Linux command to view available servers

unix-shell

Situation: I'm inspired to work from home this evening. So I download some source from work's svn repo. Unfortunately, I find some lib files are missing. Not a problem, I'll remote in to my desktop at work and check out the environment there and see what I'm missing. Only windows-7 sucks at authentication and won't let me log in. However, I was able to access my file system via a share I have set up by remoting into a win-xp box on our network.

So if I could find a windows xp box on my network, I could use that to view my files at work. I can putty in to a server on the network, but it's a unix box. If I could see a list of servers that are up, I could easily pick one I know is windows and move forward.

What command can I type into the shell prompt to give me a list of available servers?

Best Answer

When you talk about remoting can we assume you are speaking about connecting via RDP?

If you wanted to see a list of computers that are up and have port 3389 open you could use a nmap command like this: nmap -p 3389 10.2.27.0/24.

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Use -- on every command.

$ ls -la
total 32
drwxr-xr-x  3 richard  richard  512 Jul 28 15:44 .
drwxr-xr-x  3 root     wheel    512 Jul  6 17:10 ..
$ mkdir -- -A
$ ls -la
total 36
drwxr-xr-x  2 richard  richard  512 Jul 28 15:44 -A
drwxr-xr-x  4 richard  richard  512 Jul 28 15:44 .
drwxr-xr-x  3 root     wheel    512 Jul  6 17:10 ..
$ cd -- -A
$ ls
$ pwd
/home/richard/-A
$ cd ..
$ rm -rf -- -A
$ ls -la
total 32
drwxr-xr-x  3 richard  richard  512 Jul 28 15:44 .
drwxr-xr-x  3 root     wheel    512 Jul  6 17:10 ..

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There was a script someone wrote in another question: find / -type d -printf "chmod %m %p \n" > reset_perms.sh that forced the permissions down. I'd like to compare and output the changes rather than force them down.

Instead of printing out the commands to run change permissions, simply adjust the printf to spit out the uid, gid, mode, and fullpath and send the output to a file. Then as womble mentioned, use diff to compare the two files.

$find / -printf "%U, %G, %m, %p\n" > permissions.txt

0, 0, 755, /bin
0, 0, 755, /bin/chgrp
0, 0, 755, /bin/tar
0, 0, 755, /bin/dir
0, 0, 777, /bin/sh
0, 0, 777, /bin/pidof
0, 0, 777, /bin/bzless
0, 0, 755, /bin/zgrep
...

Best Answer

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