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In Windows, I use PuTTY to log in a Linux-based remote server via SSH.
Is is possible to change the default directory entry point I get to after I connect and login? (That would be a nice time saver.)
e.g. from server/home/ to server/home/subdir/subdir/
You can also change the directory within PuTTY itself:
Configuration → Connection → SSH
Fill in the "Remote command" field with the following:
cd subdir/subdir ; /bin/bash
Add cd subdir/subdir to ~/.bashrc or ~/.bash_profile, or
change the home directory of the user.
You could use screen to keep your current directory by always logging into the same screen session.
Add the screen command with parameters to your putty saved session under SSH>Remote Command.
See the screen documentation for which parameters to use.
screen -R -O -t mysession -S mysession -f
Depends on a lot of things. Mainly the server operating system. Most SSH servers run Linux or Unix of some flavor. When you connect via any method of remote text login (as SSH is one member of this category) such a system will automatically spawn a shell process to talk to you. That's probably "bash", and it runs various things on startup. Check out
man bash
to learn more. One of the many things you can do is cd to a subfolder.
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E.g, each time I have start from my mac:
ssh myself#192.168.100.101 to a linux server server and su oracle, and type my password. I wish to accelerate this routine by using some alias, which do the ssh login and su user at the same time.
I know ssh command can do remote command line and quit. But that's not my requirement: I don't wish ssh login/execute/return, I want it to switch user and I start to work.
Any command line option could help on this?
Thanks a lot.
ssh -t myself#192.168.100.101 "su oracle"
-t
Force pseudo-terminal allocation. This can be used to execute
arbitrary screen-based programs on a remote machine, which can be very
useful, e.g. when implementing menu services. Multiple -t options
force tty allocation, even if ssh has no local tty
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Closed 7 years ago.
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In putty i want to copy a .war file from my machine (at D:\\file.war) to a remote server like this:
sudo scp -r D://file.war user#xxx.xxx.xxx.xxx:/tomcat8/webapps
it doesn`t work and i have also tried things like:
sudo scp -r \file.war user#xxx.xxx.xxx.xxx:/tomcat8/webapps
or
sudo scp -r /cygdrive/d/file.war user#xxx.xxx.xxx.xxx:/tomcat8/webapps
I have to type in my password two times then (one time for sudo, next time for user). But then i get always the same error:
<pathtolocalfile>: No such file or directory
Putty always connects via SSH. I need sudo to get permission to write into the webapps folder.
How do i have to specify the path? Sry, i´m trying this for the first time and after some research i´m getting more and more confused about how to do this the right way.
I managed to do what i wanted, although my solution is not the nicest:
I connected to the server using WinSCP and my normal user account.
There i copied the file into my user home directory.
Then i opened the Putty console in WinSCP and changed to root user with "sudo" (and typing in my password again).
Now i finally was able to copy the file from my user accounts home directory into the webapps folder of tomcat.
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My desire:
ssh into a remote machine, take a peak around, and then copy a file from from that remote machine into my local machine using a Linux command.
My frustration:
From what I've seen in the documentation, I can't be ssh'd while using the scp command. I must simply be a user on my local machine and specify the the connection info and the file location (ie. scp user#remotehost:copyFrom.txt /myDir/copyHere.txt).
I could alternatively use SFTP:
$ SFTP user#remotehost
$ $ get remoteFile.txt /myLocalDir/localFile.txt
but SFTP isn't quite as fast as SSH.
Is it possible to use scp while already sshd into the remote machine?
No, it is not possible, if you don't have public IP and sshd server running on your workstation (if you have, there is nothing easier than to run scp file localmachine: from remote session).
The speed is not significant. It can be one or two percent on large files, but using sftp, you will gain much more, because you do not have to initiate ssh the connection for each scp command, but only once and every get command is "cheaper". For normal files over normal network you will not notice difference.
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I recently installed Ubuntu 12.04 sever on a new box. I ssh in, run a command (a do loop iterating over a perl script that forks off several processes each running an application [blastn] on the provided data), and detach using Ctrl-a d. When I run screen -r to resume, no problem, the loop is running happily. When I log out of my ssh session and log back on, I can still resume the screen session with screen -r, but now the loop has terminated with error messages stating that the application can't be found and/or the perl script can't be found. I've tried giving the full path to the perl script to my perl command (i.e. not using tilde), but no dice. Still gets lost after ssh logout / logon.
It seems this is particular to my Ubuntu server. Running the exact same loop / perl script forking off processes / applications through ssh into my Mac OS X box, it finishes happily even after logging out from ssh, so I wonder if this has something more to do with my Ubuntu server than GNU screen. Much searching online has yielded no answer, however, so I would appreciate any help that you may be able to offer.
I can only guess you may have an encrypted home directory which as decrypted version is mounted during your login time. As soon as the last login terminates, the decrypted version gets unmounted and your running processes have no access anymore to the files in your home directory.
You can check this by typing mount | grep ^/home/. If this shows ecryptfs as type of the mount, then this is the case.
If this shows nothing (or a file system type like ext3 or similar), then my guess is wrong.
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I installed the shrewsoft vpnmanger on my linux (crunchbang kernel 3.2.0-4 amd64) the problem is, that somehow it can only be started as sudo. Can someone explain how i can fix this?
sudo /usr/local/sbin/iked&
How can I change the iked installation so that it is available for each user?
Thanks
It's just about the paths a normal user's shell search for commands. But normally it makes sense that those commands located in a sbin dir are not accessible by typing just the command's name. Those commands need access to protected resources that are only accessible by root.
But if you have the luck that you can gain the full rights by means of sudo you can simply create an alias via
alias iked="sudo /usr/local/sbin/iked"
and add it into your shell's resource file.
To make the full command accessible to all users by simply typing iked you can create a little bash script named iked with content
#!/bin/bash
sudo /usr/local/sbin/iked
and place it in /usr/local/bin.
Of course that implies an appropriate /etc/sudoers file and that the execute permission of iked is set.
try copying or symlinking in it in /usr/bin.
and see if it work for the user then, if it has a global log file (I don't know about this app so not one to comment) but assuming it has some log in /var/log/iked.log and its been written by root you will have permssion issues by another user, so chown it to some neutral group like users or something.:
Try here it may give you more info, I can see you could try:
/usr/bin/iked -d 4
But from what I read it does have a log in /var/log and yep that permission issue would be the primary issue specially if root was the first user to run this app.