PuTTY is the best SSH client and it’s free. But it lacks of this little function that I really want – Automatic login.
So I have searched many Google pages and found this PuTTY Connection Manager which I explained details in my previous post. It is a very good software.
But somehow I wanted the auto login function without the extra programs. I wanted it to be done directly with PuTTY, not within the frame of PuTTY Connection Manager.
And I found this software called AutoHotKey (http://www.autohotkey.com/) which can automate keyboard and mouse actions. But I gave up to use it at that time because I was too lazy to read all the instructions and to come up with a script for the auto login.
But yesterday, I decided to take a look again and this time I successfully created the Auto Login script! To tell you the truth, it was not easy but it is worth it. I am proud of myself 
So here is the script.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | ; You need to define the full path where the putty.exe exists . 'putty_profile' should be existing profile name.
v_program=%A_ProgramFiles%\PuTTY\putty.exe -load putty_profile
v_userid=youruserid
v_passwd=yourpasswd
; msec to wait before sending userid
v_wait_userid=1000
; msec to wait before sending password
v_wait_passwd=500
;-------------------------------------------------
; To make modifier keys to work properly (such as Shift)
SetKeyDelay, 0, 10
run, %v_program% , , , newpid
;you need to wait a little for the window to initialize
;sleep, 100
winwait, ahk_pid %newpid%
;wait for the login prompt to appear
sleep, %v_wait_userid%
ControlSend, , %v_userid%{enter}, ahk_pid %newpid%
sleep, %v_wait_passwd%
ControlSend, , %v_passwd%{enter}, ahk_pid %newpid%
;create unique title so you won't be lost
WinGetTitle, v_title, ahk_pid %newpid%
v_newtitle=%v_title% - %newpid%
WinSetTitle, ahk_pid %newpid%,,%v_newtitle% |
If you want to try this yourself, you will need to change some information.
- Install AutoHotKey software.
- Create any file name with extension .ahk. For example ’ssh.ahk’ would be fine.
- Copy & paste above code into the file. But need to change the values.
v_program: PuTTY location with the -load option and connection profile name
v_userid: userid
v_passwd: passwd
v_wait_userid : msec to wait before sending userid
v_wait_passwd : msec to wait before sending passwd - Save it and double click on the file to execute it. And watch the PuTTY logging in the server automagically!
In fact, you can easily add additional commands at the end of the script to execute further commands.
Below is an example.
1 2 3 4 5 6 7 8 9 |
;maybe you want to wait some seconds while initial welcome screen appears. Let's say 2 seconds.
sleep, 2000
;cd upload
ControlSend,,cd upload{enter} , ahk_pid %newpid%
;You can send the folder list to your email account.
ControlSend,,ls|mail -s "Daily File Listing for Upload" your@emailaccount.com{enter}, ahk_pid %newpid% |
Note that there is a little issue that the password is saved as plain text. But I can live with it for now.
Here is my script in action.
Come visit again for more information on PuTTY.
#1 by iman at June 26th, 2008
Thank you very much – it worked as mentioned and will definitely prove useful in my daily operations.
#2 by Jay at July 6th, 2008
putty has a option for password, I have been using that for a while because the machines which I use are formatted frequently. Since they are formatted frequently key sharing is painful. But if you want to send the password in cleartext which might be the case where you are accessing server available on your local network(not on the internet).
putty host1 -l root -pw
same information can be found at
http://jayrajput.blogspot.com/search/label/Putty
#3 by HanaDaddy at July 6th, 2008
Jay, I really appreciate your comment. I was really happy that there is such option existed. I have tested it also worked with session profiles. So below example works perfectly.
putty -load %profile_name% -l %userid% -pw %password%But according to the official Putty Manual, the
-pwoption doesn’t work with telnet.#4 by Nix at July 12th, 2008
This is wonderful! Great work, mate
Tnx for sharing!
#5 by bhavin at August 5th, 2008
Great work!!!
#6 by Sonia at August 9th, 2008
You can do a lot more than automatic login with AutoHotkey. This free and small program is what we call an automation program. With the help of hotkeys like F1, F2 etc., it types whatever sequence you want it to type like “nano /var/log/apache2/access.log”.
Read more on my blog at http://cedeq.com/blog/automation/how-to-work-faster-with-putty
#7 by steve at August 10th, 2008
I remember being interested in autohotkey once a long while ago, but never got around to learning it. Then I found your site when searching for a way to autologin to putty, and finally started using autohotkey, and now I use it for tons of everyday tasks, and I can’t imagine life without it. Just wanted to say thanks.
#8 by Mel at August 18th, 2008
It is a very useful starting point and thanks for your efforts, but I have to ask a question:
It looks like you are assuming you would receive the login prompt after a certain amount of time has passed and sending the username. Is there a way to check if you really received the prompt asking you the username and then actually send it ? In other words, can you read the putty screen and determine if the prompt has arrived ? In my particular case, some servers, due to their workload and/or network segments that they are located on, getting the prompt takes close to or sometimes exceeding 1 minute. And if I make the wait that long, I will have to wait unnecessary amount of time for logging into 80% of my machines. Thought about making two scripts but this time I have to figure out which script to use with which server, which is insane in a 100+ server environment and growing almost every week.
Thanks and keep up the good work.
Mel
#9 by HanaDaddy at August 18th, 2008
Wow mel, 100 servers to maintain. That’s a big job. I myself tried to find a way to determine the login prompt, but it has been unsuccessful up to now. Once I find how to do this properly, I will let you know. Thanks.
#10 by Mel at August 18th, 2008
I was investigating further after I left the message above and found out that you can scrape the putty.log file (or whatever name you gave to your log file) to see if the “username” prompt has arrived but this implies that your session starts with logging enabled. I have read the putty configuration but could not find how to enable/disable logging from a command line start of putty other than using “-load session_name” switch, which requires you to have a session file created manually with the logging enabled. Not a big deal for a few servers but you can imagine creating 100+ session files is not very easy let alone remembering to create one everytime a new server gets added to the landscape.
In retrospect, I considered sending a keystroke to the terminal to open up the change settings menu but this time the problem is, the usual alt-space is not popping up the context menu for putty as it does with other native/close-to-native windows.
More leads for you, as you seem to be more gifted than I do in programming as well as have more time than I do.
#11 by Sampath at September 7th, 2008
Have you found a way to send key strokes based on the prompt in putty instead of a sleep time.
#12 by Sonia at September 7th, 2008
Sampath,
The AutoHotkey MouseClickDrag function will put in the clipboard a text area in PuTTY. Then you just have to verify the clipboard to know if you can continue.
MouseClickDrag, WhichButton, X1, Y1, X2, Y2 [, Speed, R]
Sonia
#13 by HanaDaddy at September 7th, 2008
Sonia , That’s a good idea, but can you run the multiple process at the same time ? I mean multiple AutoHotKey will try to access the clipboard. Thank you for the information anyway.
#14 by G at November 1st, 2008
Wow thanks! You just saved me loads of time!
#15 by Grey at December 11th, 2008
Not as elegant as your’s but here’s my auto login for Putty. My ssh access uses a passkey so no need to enter username or password into the shell. It also uses Pageant to retrieve and run the passkey. Putty, Pageant and the autohotkey script are all located on my usb stick in the same folder. The ‘pageantkey’ that the script points to is actually a short cut to pageant which also contains the location of the passkey so it automatically loads the passkey and asks for the password, ie in the shortcuts target = “U:\portablePrograms\portaputty\pageant.exe masterkey.ppk” (where masterkey is the key you want pageant to load located in the same directory as pageant.)
I have used the autohotkey compiler to prevent the script being decomplied so my PW is reasonably protected. I have also saved my username in the putty configuration. This works great for my purposes of just connecting to my home network.
^#!s::
;Sets everything to run from the usb drive.
SetWorkingDir, %A_WorkingDir%
;Run the shortcut to pageant which also loads the pass key, then enter the passkey passphrase.
Run, pageantkey
WinWaitActive Pageant: Enter Passphrase
WinActivate
Sendinput MyPassPhraseHere{Enter}
;Run putty, activate it.
Run, putty.exe
WinWaitActive PuTTY Configuration
WinActivate
;This is to send key presses to putty to load the correct profile, depending on where in the profile list your conenction settings are determines the number of downs.
Send {Tab}{Tab}{Tab}{Tab}{Down}{Down}{Down}{Enter}
;Wait for the putty session to end and then terminate pageant.
Process, WaitClose, putty.exe
Process, close, pageant.exe
return
A problem I found was that you had to set the usb key to the correct drive letter otherwise you’d run into problems with the shortcut paths for the pageant passkey. This is an issue on systems where you don’t have admin to change your drive letter. I found a way around this was to add a couple of short batch files to the script.
Put this line in the script straight after setting the working directory.
Run, USBon.bat
Create USBon.bat as so:
@echo off
subst u: %cd%
where u is the drive letter you want to use. Place the .bat file in the same folder as putty & pagenat etc
Then at the end of the script put in a USBoff.bat, also of course place this in the same folder…
Run, USBoff.bat
In usboff.bat put in:
@echo off
subst u: /D
This relesaes the drive letter at termination of the script… As I said, not as elegant as your’s but shows how versatile autohotkey can be. I love using it! Your scripts given me a couple of ideas for modification. Thanks.
#16 by HanaDaddy at December 11th, 2008
@Grey, Thanks for your insight and solution! For SSH connection, it is easier to implement auto login. For example, you can directly run it from command prompt to connect with access information.
putty -load %profile_name% -l %userid% -pw %password%
Also, there is a separate Freeware solution called PuTTY Connection Manager. It has implemented auto login function similar in a way to my AutoHotKey script (waiting few seconds before sending username and password) , but it is very nice and tabbed interface makes it easy to maintain multiple putty sessions.
#17 by Narendran Babu at December 25th, 2008
Hi,
I really appreciate the help, it was great using it.
#18 by Michael Kabugi at January 7th, 2009
Thank you very much. Totally Genius!!
#19 by Jane Taubman at February 11th, 2009
Thank you so much for publishing this. I was just about to write one when I found your version, works a treat.
#20 by Doug Boreham at September 29th, 2009
Does anyone have code written for AutoHotkey that will close Putty entirely without user input?
#21 by Grey at September 29th, 2009
Closes putty, or any other process.
Process, close, putty.exe
#22 by Pete G at December 31st, 2009
Perhaps what you are looking for is KiTTY: http://www.9bis.net/kitty/?page=Logon%20script
#23 by HanaDaddy at December 31st, 2009
Thank you, Pete! This is the long waited solution for AUTO LOGIN for PuTTY! It works perfectly!
#24 by Sjoerd at January 19th, 2010
For use with obligatory special characters in your password I suggest using ControlSendRaw for that part.
Thanks!