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Inhaltsverzeichnis
Jumphost
This page provides information for users with accounts at the department of mathematics at 'Universität des Saarlandes'. (E.g. you have an email-Address <user name>@math.uni-sb.de)
- Name: styx.math.uni-sb.de
- Access: with credentials from your math account, but keep in mind that your homedir is sepeate here for jumphost
styx
and not backed up! - Method protocol: ssh
- Port: 22123
- Inside Uni des Saarlandes reachable Port: 22
Main purpose of a jumphost is to secure access from outside.
So you can have access with ssh
first to contact with a seperate homedir but same login as all hosts in
the domain math.uni-sb.de
.
From contact
you can access all hosts in the given domain.
ssh proxy commands
in your ~/.ssh/config
you can add something from this examples. Please replace <your username>
with your login name at math department:
- .ssh/config
Host styx.math.uni-sb.de Port 22123 User <your username> ForwardAgent yes
For System Administrators:
- .ssh/config
Host aries.math.uni-sb.de service.math.uni-sb.de ldap.math.uni-sb.de Port 22 User root ProxyCommand ssh styx.math.uni-sb.de -W %h:%p
For Users and without VPN:
Please change content inside this brackets: <>
- .ssh/config
Host styx HostName styx.math.uni-sb.de Port 22123 User <your username> ForwardAgent yes Host gemini HostName gemini.math.uni-sb.de Port 22 User <your username> ProxyJump styx Host git HostName git.math.uni-sb.de Port 22 User <your username> ProxyJump styx Host virgo HostName virgo.math.uni-sb.de Port 22 User <your username> ProxyJump styx Host aries HostName aries.math.uni-sb.de Port 22 User <your username> ProxyJump styx Host taurus HostName taurus.math.uni-sb.de Port 22 User <your username> ProxyJump styx
etc.
Access your groups web pages for editing:
Change brackets and text in between - like „<xxx>“ - with your data
- .ssh/config
Host www HostName www.math.uni-sb.de Port 22 User <your groups login name> ProxyJump styx
ssh www
connects you then directly to the right account.
cd /exports/ag/ag-<your ag-name>
to reach the public area.
Connect to Subversion
obsolete SVN is OFF
ssh -p 22123 <your username>@<jumphost> -L 3691:svn.math.uni-sb.de:3690
use this svn url:
svn://localhost:3691/<your username>
git
Please send your public key to systemverwaltung at math . uni-sb . de
sshuttle
you can try sshuttle
from within linux
Installation in Debian or Ubuntu
Fehlersuche
Intern:
host = <ein Server der Mathematik>
host:~$ ssh host channel 0: open failed: administratively prohibited: open failed stdio forwarding failed ssh_exchange_identification: Connection closed by remote host
- ICMP gesperrt?
- Firewall aktiviert?