09-02-2009
How ti check if passwordless ssh is enabled between two systems
I am writing a script which will execute commands on remote host only if they have a passwordless ssh setup. How do i check for that in my script
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1. Shell Programming and Scripting
I am writing a script that needs to access various servers some of which are not ssh enabled. In order to access the ssh enabled servers I am using the following command to generate the public key :
ssh-keygen -t rsa
Is there a similar command for the other servers as well.
If I try to use... (1 Reply)
Discussion started by: ravneet123
1 Replies
2. UNIX for Advanced & Expert Users
I am writing a script that needs to access various servers some of which are not ssh enabled. In order to access the ssh enabled servers I am using the following command to generate the public key :
ssh-keygen -t rsa
Is there a similar command for the other servers as well.
If I try to use... (1 Reply)
Discussion started by: ravneet123
1 Replies
3. HP-UX
Hi,
Can someone help me on ssh-keygen usage...?
I used ssh-keygen after which "id.pub" file was generated in system1's > .ssh directory...
I copied the same into the remote system system2 > .ssh directory as "authorized_keys" file.
Now i tried ssh connection from system 1 to system... (7 Replies)
Discussion started by: EmbedUX
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4. Shell Programming and Scripting
Hi,
I want to login to a remote server and sftp files without password prompting. So, I created private-public key pair as follows:
user1@server1.com .ssh]$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/user1/.ssh/id_rsa):
Enter... (7 Replies)
Discussion started by: dips_ag
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5. Shell Programming and Scripting
Hi Experts,
Few more words to the title, both the servers are ssh enabled but I have read only access to the second server, so I cannot automate SFTP process using RSA/DSA keys.
I am using Control M to trigger the script and do not want any manual intervention to enter the password to complete... (4 Replies)
Discussion started by: nchourasiya
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6. UNIX for Dummies Questions & Answers
hi,
i have tried with passwordless shh in google..
i followed the below steps ...
user:~> ssh-keygen -t rsa
Enter file in which to save the key (/home/cantin/.ssh/id_rsa):key.txt
Enter passphrase (empty for no passphrase):
Enter same passphrase again:
till this step i... (0 Replies)
Discussion started by: arunmanas
0 Replies
7. Shell Programming and Scripting
My main concern is, i have to login into 300 linux server and all are having same userid and password. I dont want to create any key for each server to login .
Is there a way to run the shell script ? (3 Replies)
Discussion started by: Mani2512
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8. UNIX for Advanced & Expert Users
Hi
I have created a user on a linux server and created a passwordless ssh key. I've echoed the key into the authorized_keys file for the user.
I've added a series of forced commands to the key.
From my laptop - logged in as myself - I can ssh into the server as that user and the commands... (3 Replies)
Discussion started by: steadyonabix
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9. Shell Programming and Scripting
Hi,
I am trying to restrict an ssh-user to execute unwanted commands using ssh from a remote host a. So for that I am using the forced command in the authorized_keys file that will allow the ssh-user to only execute a particular command.
If I did not set this, I am able to login via ssh and... (2 Replies)
Discussion started by: Anil George
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10. Red Hat
Hi,
I tried to execute a command to check if
Kerberos server is enabled
Printer Daemon is enabled
GUI Login is enabled,
do advise how I check from the logs below on how to check whether the commands are valid or not?
ls -all /etc/rc2.d/
total 8
drwxr-xr-x. 2 root root... (2 Replies)
Discussion started by: alvinoo
2 Replies
LEARN ABOUT DEBIAN
cd-hit-para
CD-HIT-PARA.PL(1) User Commands CD-HIT-PARA.PL(1)
NAME
cd-hit-para.pl - divide a big clustering job into pieces to run cd-hit or cd-hit-est jobs
SYNOPSIS
cd-hit-para.pl options
DESCRIPTION
This script divide a big clustering job into pieces and submit jobs to remote computers over a network to make it parallel. After
all the jobs finished, the script merge the clustering results as if you just run a single cd-hit or cd-hit-est.
You can also use it to divide big jobs on a single computer if your computer does not have enough RAM (with -L option).
Requirements:
1 When run this script over a network, the directory where you
run the scripts and the input files must be available on all the remote hosts with identical path.
2 If you choose "ssh" to submit jobs, you have to have
passwordless ssh to any remote host, see ssh manual to know how to set up passwordless ssh.
3 I suggest to use queuing system instead of ssh,
I currently support PBS and SGE
4 cd-hit cd-hit-2d cd-hit-est cd-hit-est-2d
cd-hit-div cd-hit-div.pl must be in same directory where this script is in.
Options
-i input filename in fasta format, required
-o output filename, required
--P program, "cd-hit" or "cd-hit-est", default "cd-hit"
--B filename of list of hosts,
requred unless -Q or -L option is supplied
--L number of cpus on local computer, default 0
when you are not running it over a cluster, you can use this option to divide a big clustering jobs into small pieces, I suggest you
just use "--L 1" unless you have enough RAM for each cpu
--S Number of segments to split input DB into, default 64
--Q number of jobs to submit to queue queuing system, default 0
by default, the program use ssh mode to submit remote jobs
--T type of queuing system, "PBS", "SGE" are supported, default PBS
--R restart file, used after a crash of run
-h print this help
More cd-hit/cd-hit-est options can be speicified in command line
Questions, bugs, contact Weizhong Li at liwz@sdsc.edu
cd-hit-para.pl 4.6-2012-04-25 April 2012 CD-HIT-PARA.PL(1)