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ppeetteerr
n00b
Joined: 19 Nov 2007
Posts: 58
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 Posted: Fri May 30, 2008 6:13 pm Post subject: ssh as different user |
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Ok so my username on my home computer is peter. My user name on host.com is ppeetteerr. In the past I've done
| Code: | | ssh ppeetteerr@host.com |
or when I'm feeling adventurous | Code: | | ssh -l ppeetteerr host.com |
My question is: is there a way to change my default user name when I ssh. So I can just ssh host.com and it logs me in as ppeetteerr? |
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Aleksi Halkola
n00b
Joined: 02 Aug 2005
Posts: 21
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| Posted: Fri May 30, 2008 6:27 pm Post subject: |
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you can do that in ~/.ssh/config. Just add teh following
Host host.com IP
HostName full.host.name.com
User ppeetteerr |
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think4urs11
Bodhisattva
Joined: 25 Jun 2003
Posts: 6659
Location: above the cloud
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| Posted: Fri May 30, 2008 6:27 pm Post subject: Re: ssh as different user |
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| Code: | cat ~/.ssh/config
Host schnickschnack
HostName host.com
User ppeetteerr
me@box $ ssh schnickschnack |
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mimosinnet
l33t
Joined: 10 Aug 2006
Posts: 717
Location: Barcelona, Spain
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| Posted: Mon Jun 09, 2008 6:12 pm Post subject: |
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This is somehow related. I have a user (joanet) and I am the root in the same box. I ssh to the same external boxes, so I thought I could make a symbolic link and root could use joanet configuration:
| Code: | | # ln -s /home/joanet/.ssh /root/.ssh |
| Code: | # ls -lisah /root
14417927 0 lrwxrwxrwx 1 root root 17 9 jun 19:46 .ssh -> /home/joanet/.ssh |
When I try to ssh from root:
# ssh mimosinnet
I get the following message:
| Code: | | Bad owner or permissions on /root/.ssh/config |
I understand the message: I am trying to ssh from root and the file owner is joanet:
| Code: | # ls -lisah /root/.ssh/config
11337740 4,0K -rw------- 1 joanet joanet 359 9 jun 20:04 /root/.ssh/config |
This is my /root/.ssh/config
| Code: | # cat /root/.ssh/config
Host mimosinnet
User mimosinnet
IdentityFile ~/.ssh/id_dsa
ForwardX11 yes
Compression yes
ForwardX11Trusted yes |
If I copy my joanet configuration to root, I have joanet ssh configuration working in root:
| Code: | | cp -r /home/joanet/.ssh . |
Is there a possibility to use symbolic links to not have to maintain two similar ssh configurations (joanet and root)?
Thanks! |
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Dieter@be
Guru
Joined: 03 Apr 2005
Posts: 314
Location: Wetteren, Belgium
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| Posted: Mon Jun 09, 2008 6:16 pm Post subject: |
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afaik the owner of the ssh config must always be the user itself
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mimosinnet
l33t
Joined: 10 Aug 2006
Posts: 717
Location: Barcelona, Spain
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| Posted: Mon Jun 09, 2008 7:44 pm Post subject: |
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| Dieter@be wrote: | | afaik the owner of the ssh config must always be the user itself |
Good to know! This leads me towards finding another strategy. Thanks a lot for the answer!  |
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infinite1der
n00b
Joined: 31 Jan 2006
Posts: 52
Location: Atlanta, GA
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| Posted: Mon Jun 09, 2008 9:12 pm Post subject: |
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| mimosinnet wrote: | | Dieter@be wrote: | | afaik the owner of the ssh config must always be the user itself |
Good to know! This leads me towards finding another strategy. Thanks a lot for the answer! |
See also sshd_config: StrictModes
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Atlanta, GA
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mimosinnet
l33t
Joined: 10 Aug 2006
Posts: 717
Location: Barcelona, Spain
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| Posted: Wed Jun 11, 2008 3:39 am Post subject: |
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| infinite1der wrote: | | See also sshd_config: StrictModes |
Thanks very much for the tip. I have tried StrictModes with the abovementioned configuration (symbolic link of .ssh from root to user) and still unable to connect:
| Code: | # grep StrictModes /etc/ssh/sshd_config
StrictModes no
# ssh mimosinnet
Bad owner or permissions on /root/.ssh/config |
These are the permissions of the config file:
| Code: | | 11339658 4,0K -rw------- 1 joanet joanet 466 11 jun 05:12 config |
Nevertheless, if I change the owner and permissions of the config file (it does not work if I make the file writtable for the group):
| Code: | | 11339658 4,0K -rw-r----- 1 root users 466 11 jun 05:12 config |
I am able to log from root and the user. 
Great! Wonderful! Thanks a lot!
Update: Nevertheless, this happens independently of the value of StrictModes.   |
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