I want to write a program that accesses my routers and perform some command, while its output is save to file on my disk. I have done this successfully using python pexpect module in linux. I am starting C# .net and want to try over it. Searching google gave me some result on ssh client, but i dont know if any of them can get me the result back ?
Any ideas, i know i shouldnt be asking for any code snippet, just point me in right direction specially if someone has used it to fetch configurations off ssh servers.
You may try the SSH.NET library.
Related
I just bought a synology nas ds720+ and I'm trying to setup it as a media server.
But first I want to know, is there a way to execute commands directly in DMS ? like commands to create folders, open files etc etc
I know that I can do things from ssh but I want to setup my nas when I'm in pause at work when I have nothing to do. From here I can't launch ssh or cmd, I can only access to my nas from dsm.
Anyway, sorry for not using the good terms and having a bad english.
Have a good day !
Depending on your Browser at work, this could help you, but you would need to install a plugin.
https://community.synology.com/enu/forum/1/post/133977
Given:
Connection to the Uni's secure shell like this:
me#my_computer~$ ssh <my_name>#unixyz.cs.xy.com
Password:***********
Welcome to Unixyz. You now can access a terminal on system unixyz:
my_name#unixyz~$ ls
Desktop Documents Pictures Music desired_document.pdf
my_name#unixyz-$
Taks/Question:
Getting the desired_document.pdf to my own system. I have thought of some options so far:
1)Since i can access an editor like nano I could write a C/Java programm , compile it in the home directory and make that program send the pdf. Problem with that: Had to code a client on the Uni machine and a server on my own system. On top of that I only know how to transfer text given to the stdin and no pdf's. And its obviously too much work for the given task
2) I found some vague information about commands: scp and sftp. Unfortunately, I can not figure out how it is done exactly.
The latter is basicly my questions: Are the commands scp and sftp valid options for doing the desired and how are they used?
EDIT:
I received a first answer and the problem persists: As stated, i use:
scp me# server.cs.xyz.com:/path/topdf /some/local/dir
which gives me:
/some/local/dir: no such file or directory
I'm not sure in which environment you are.
Do you use Linux or Windows as your every-day operating system?
If you are using windows, there are some ui-based scp/ssh implementations that enable you to transfer these files using an explorer based ui.
For example there is https://winscp.net/
You can indeed use scp to do exacty that, and it's easier than it might look:
scp your_username# unixyz.cs.xy.com:path/to/desired_document.pdf /some/local/dir
The key is the colon after the servername where you add your path
Optionally you can pass in the password as well, but that's bad practice, for obvious reasons.
I actually got the answer myself and the error that I was having. Both, the guy with the answer and the commentor where right. BUT:
scp must be launched when you are in YOUR terminal, I always tried to do it while I was connected to the remote server.
2 hours wasted because of that.
We're deploying our application using SSH scripts. For the production stage we need to figure out which out of two clusters is currently active. This can only be achieved reliably by running a command on a remote host and interpreting its output. Unfortunately there's no SSH plugin that does that AFAIK.
They only seem to be able to interpret if the SSH script return value was different from zero.
Currently I only see two undesirable solutions:
use SSH in a script like Python, Groovy, etc. (means, we would have to provide SSH authentication to it somehow)
Let the SSH-command write to a file, that is then copied to Jenkins and interpreted there (unelegant and cumbersome)
Ok based on what you mentioned in the comment, I think you can try something like given in here and then copy back that file to jenkins using ftp and then read the file contents.
Or you can have the whole process orchestrated in an Ant script by using SSHExec task and get the output in Ant
I currently have a script that ssh's into another server and runs a command. When the ssh command runs though in prompts if I would like to connect (yes/no) and for the password. Is there a way that when the ssh call is made that I could automatically supply the input for the prompt?
Also, I do realize that using a public key with the ssh command would resolve this issue, but I do not have permission to create a public key.
Don Libes created Expect exactly so you could program tools that need to interact with prompts. I've even used it with modems! It's a very old tool but very effective, and it deserves to be more widely known.
The only downside is that it uses Tcl, which is not my favorite programming language. But to learn enough Tcl to make simple expect scripts won't take you more than an hour. And Expect is really the perfect tool for the job.
can you download and install external tools? if you can try, try sshpass. I have not tried, but you can give it a go.
I'm not sure if this is possible or not.
What I'm looking for is a way to tell telnet to use a certain IP address to log into and then run commands where the commands change based on a user's MAC address.
Basically it would be:
tell telnet to use x.x.x.x as the IP to log into and put in the correct username and password
tell telnet to run commands (based on the user's MAC address) that can change based on which user stats you want to see, for example: show macaddress
export the output to notepad
close
expect can do this. If you don't have Tcl but Python, try Pexpect.
If you just want to run one command, use ssh (which allows you to log in, run a command and which will return with the error code of the command, so you can handle errors, too).
If you want to run more than a single command, write a script, use scp to copy that script to the other side and then execute the script with ssh. I've used this approach with great success to build a simple spider that could run a script to gather system information over a large number of hosts.
I think you're looking for expect (it automates these kind of interactive applications). Here is a gratis chapter from the authority on expect, the book "Exploring Expect".
Also you should use SSH if this is over the internet. Telnet is insecure as it's a plain text protocol.
Not to blow my own horn, but you may be able to twist a personal app of mine (note: Sorry, I've removed this.) to this end.
There's currently no documentation other than what is on that page and no public source code (though I've been meaning to get onto that, and will work that out tomorrow if you're interested), but I'd be happy to answer any questions.
That said, any MUD client could be turned to the same use too.