Sponsored Content
Top Forums Shell Programming and Scripting Script to check and modify /etc/ssh/sshd_config Post 302815861 by MadeInGermany on Sunday 2nd of June 2013 09:42:28 AM
Old 06-02-2013
Yes, command line options are for ssh, and they override ssh_config.
For changing existing options in sshd_config you can use awk
Code:
file=/etc/ssh/sshd_config
cp -p $file $file.old &&
awk '
$1=="PasswordAuthentication" {$2="yes"}
$1=="PubkeyAuthentication" {$2="yes"}
{print}
' $file.old > $file

or do it in a shell loop
Code:
file=/etc/ssh/sshd_config
cp -p $file $file.old &&
while read key other
do
 case $key in
 PasswordAuthentication) other=yes;;
 PubkeyAuthentication) other=yes;;
 esac
 echo "$key $other"
done < $file.old > $file


Last edited by MadeInGermany; 06-02-2013 at 10:50 AM.. Reason: read line/set replaced by read key other
This User Gave Thanks to MadeInGermany For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

diff between ssh_config & sshd_config

Hi, Can anybody brief me the difference between ssh_config & sshd_config. I am looking for the functionality difference. any help appreciated Shihab (4 Replies)
Discussion started by: shihabvk
4 Replies

2. Shell Programming and Scripting

Script check if ssh requires a password???

Thanks to the help from this forum i've learned a lot of good stuff but I still have questions :). I need to write a script that checks if ssh to a box requires a password. I need it will be an "if" statement, if ssh requires password, then do a key exchange(with i already have). Just need to... (5 Replies)
Discussion started by: elbombillo
5 Replies

3. Red Hat

sshd_config default configuration

Hi All, On /etc/ssh/sshd_config remark, many of the lines are commented out, like below #PubkeyAuthentication yes Does that mean the default of PubkeyAuthentication is no (or yes)? Thanks for any comment you may add. (1 Reply)
Discussion started by: itik
1 Replies

4. AIX

sshd_config default

Hi All, On sshd_config remark, many of the lines are commented out, like below #PubkeyAuthentication yes Does that mean the default of PubkeyAuthentication is no (or yes)? Thanks for any comment you may add. edit by bakunin: corrected a typo in the title to preserve searchability... (2 Replies)
Discussion started by: itik
2 Replies

5. Solaris

default Sun_SSH_1.1.1 sshd_config

I have what should be a simple request, (I hope so anyways), I need the default sshd_config for Sun SSH 1.1.1. A series of scripts modify our systems to work with the rest of our system. They are supposed to create backups along the way, but alas, it seems a few too many people like the filename... (1 Reply)
Discussion started by: Corry
1 Replies

6. Shell Programming and Scripting

MaxAuthTries in sshd_config

I am not able to determine if the above setting is for outgoing or incoming connections. I do not have the rights to change it on my system to try this out. Anyone can help shed some light on this? Thank you. (2 Replies)
Discussion started by: Leion
2 Replies

7. UNIX for Advanced & Expert Users

OEL 6.3 :Slow login due to /etc/ssh/sshd_config configuration

Version: Oracle Enterprise Linux 6.3 Running on VMWare Workstation When I login to my Linux VM from putty, the third line prompting for password comes only after few seconds. login as: root Access denied root@192.168.0.235's password: ---> It takes around 5 seconds to get this prompt I... (1 Reply)
Discussion started by: John K
1 Replies

8. Shell Programming and Scripting

Check if file exists via ssh in ssh (nested)

I'm using redhat and have an odd issue with a nested ssh call. ssh -i ~/.ssh/transfer-key -q transfer@fserver1 ] && ssh -i ~/.ssh/transfer-key transfer@fserver1 "ssh -i ~/.ssh/sftp-key sftpin@10.0.0.1 ]" && ssh -i ~/.ssh/transfer-key transfer@fserver1 "scp -i ~/.ssh/sftp-key /home/S/outbox/*... (2 Replies)
Discussion started by: say170
2 Replies

9. Red Hat

Sshd_config file issue, not able to login, need urgent help.

Hello all, By mistake i edited sshd_config file and made passwordauthentication no , Now i don't have key to login. Is there any way, i can revert the changes, I am not able to login to the box at well. Need help. Thanks, saurau (3 Replies)
Discussion started by: saurau
3 Replies

10. Solaris

Solaris local access restriction other than sshd_config?

Hi All, As part of LDAP implementation we need to restrict users/groups locally on solaris machine: Options tried: sshd_config: as far as my testing it is restricting either user or group, as per the first preference. pam_access.so by default I am unable to find(need some help if this is... (0 Replies)
Discussion started by: Sridaran
0 Replies
Config::Model::OpenSsh(3pm)				User Contributed Perl Documentation			       Config::Model::OpenSsh(3pm)

NAME
Config::Model::OpenSsh - OpenSsh config editor SYNOPSIS
invoke editor The following will launch a graphical editor (if Config::Model::TkUI is installed): sudo cme edit sshd command line This command will add a "Host Foo" section in "~/.ssh/config": cme modify ssh Host:Foo ForwardX11=yes programmatic This code snippet will remove the "Host Foo" section added above: use Config::Model ; use Log::Log4perl qw(:easy) ; my $model = Config::Model -> new ( ) ; my $inst = $model->instance (root_class_name => 'Ssh'); $inst -> config_root ->load("Host~Foo") ; $inst->write_back() ; DESCRIPTION
This module provides a configuration editors (and models) for the configuration files of OpenSsh. ("/etc/ssh/sshd_config", /etc/ssh/ssh_config and "~/.ssh/config"). This module can also be used to modify safely the content of these configuration files from a Perl programs. Once this module is installed, you can edit "/etc/ssh/sshd_config" with run (as root) : # cme edit sshd To edit /etc/ssh/ssh_config, run (as root): # cme edit ssh To edit ~/.ssh/config, run as a normal user: # cme edit ssh user interfaces As mentioned in cme, several user interfaces are available with "edit" subcommand: o A graphical interface is proposed by default if Config::Model::TkUI is installed. o A Curses interface with option "cme edit ssh -ui curses" if Config::Model::CursesUI is installed. o A Shell like interface with option "cme edit ssh -ui shell". AUTHOR
Dominique Dumont, (ddumont at cpan dot org) SEE ALSO
cme, Config::Model, perl v5.14.2 2012-10-29 Config::Model::OpenSsh(3pm)
All times are GMT -4. The time now is 06:56 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy