How to SSH directly to target via jumphost using SSH Config without additional ssh command
If I do:
ssh -J jumphost.example.com target.example.com
I end up immediately logged on to 'target'.
If I use this ssh config file, using the newer ssh-7.3 jump config:
Host jump 10.1.*, targets*, *.example.com
HostName jumphost.example.com
IdentitiesOnly yes
AddKeysToAgent yes
UseKeychain yes
IdentityFile ~/.ssh/id_rsa
Host *
AddKeysToAgent yes
UseKeychain yes
IdentityFile ~/.ssh/id_rsa
I end up logged into 'jumphost' not 'target'
They keychain stuff is for mac, I have tested without it and it makes no difference but thought I'd leave it in just in case.
linux ssh
edited Feb 16 at 16:43
kasperd
26.5k1251102
asked Feb 16 at 15:08
AirCombatAirCombat
771832
add a comment |
If I do:
ssh -J jumphost.example.com target.example.com
I end up immediately logged on to 'target'.
If I use this ssh config file, using the newer ssh-7.3 jump config:
Host jump 10.1.*, targets*, *.example.com
HostName jumphost.example.com
IdentitiesOnly yes
AddKeysToAgent yes
UseKeychain yes
IdentityFile ~/.ssh/id_rsa
Host *
AddKeysToAgent yes
UseKeychain yes
IdentityFile ~/.ssh/id_rsa
I end up logged into 'jumphost' not 'target'
They keychain stuff is for mac, I have tested without it and it makes no difference but thought I'd leave it in just in case.
linux ssh
edited Feb 16 at 16:43
kasperd
26.5k1251102
asked Feb 16 at 15:08
AirCombatAirCombat
771832
1
-JisProxyJumpand notHostName.
– Boris the Spider
Feb 17 at 14:42
add a comment |
If I do:
ssh -J jumphost.example.com target.example.com
I end up immediately logged on to 'target'.
If I use this ssh config file, using the newer ssh-7.3 jump config:
Host jump 10.1.*, targets*, *.example.com
HostName jumphost.example.com
IdentitiesOnly yes
AddKeysToAgent yes
UseKeychain yes
IdentityFile ~/.ssh/id_rsa
Host *
AddKeysToAgent yes
UseKeychain yes
IdentityFile ~/.ssh/id_rsa
I end up logged into 'jumphost' not 'target'
They keychain stuff is for mac, I have tested without it and it makes no difference but thought I'd leave it in just in case.
linux ssh
edited Feb 16 at 16:43
kasperd
26.5k1251102
asked Feb 16 at 15:08
AirCombatAirCombat
771832
If I do:
ssh -J jumphost.example.com target.example.com
I end up immediately logged on to 'target'.
If I use this ssh config file, using the newer ssh-7.3 jump config:
Host jump 10.1.*, targets*, *.example.com
HostName jumphost.example.com
IdentitiesOnly yes
AddKeysToAgent yes
UseKeychain yes
IdentityFile ~/.ssh/id_rsa
Host *
AddKeysToAgent yes
UseKeychain yes
IdentityFile ~/.ssh/id_rsa
I end up logged into 'jumphost' not 'target'
They keychain stuff is for mac, I have tested without it and it makes no difference but thought I'd leave it in just in case.
linux ssh
linux ssh
edited Feb 16 at 16:43
kasperd
26.5k1251102
asked Feb 16 at 15:08
AirCombatAirCombat
771832
edited Feb 16 at 16:43
kasperd
26.5k1251102
asked Feb 16 at 15:08
AirCombatAirCombat
771832
edited Feb 16 at 16:43
kasperd
26.5k1251102
edited Feb 16 at 16:43
kasperd
26.5k1251102
edited Feb 16 at 16:43
kasperd
26.5k1251102
26.5k1251102
asked Feb 16 at 15:08
AirCombatAirCombat
771832
asked Feb 16 at 15:08
AirCombatAirCombat
771832
asked Feb 16 at 15:08
AirCombatAirCombat
771832
771832
1
-JisProxyJumpand notHostName.
– Boris the Spider
Feb 17 at 14:42
add a comment |
1
-JisProxyJumpand notHostName.
– Boris the Spider
Feb 17 at 14:42
1
1
-J is ProxyJump and not HostName.– Boris the Spider
Feb 17 at 14:42
-J is ProxyJump and not HostName.– Boris the Spider
Feb 17 at 14:42
add a comment |
2 Answers
2
active
oldest
votes
You end up logged in to the jump host because your configuration explicitly says to ignore the hostname you specified and log in to the jump host.
HostName jumphost.example.com
HostName overrides the hostname specified on the command line.
If you are trying to automatically use a jump host without having to specify it on the ssh command line, the correct config file option is ProxyJump. For example:
Host everything, behind, jumphost, *.example.com
ProxyJump jumphost.example.com
Now you can just run ssh target.example.com and you will go through the jumphost.
edited Feb 16 at 16:44
kasperd
26.5k1251102
answered Feb 16 at 15:26
Michael Hampton♦Michael Hampton
170k27309633
add a comment |
The problem is that the Host definition catches both jumphost.example.com AND target.example.com as aliases, it then sets HostName to jumphost.example.com in both cases.
I would suggest making the aliases following the Host command NOT fully qualified domain names, then creating a Host entry for each
edited Feb 16 at 16:43
kasperd
26.5k1251102
answered Feb 16 at 15:23
NanzikambeNanzikambe
1665
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
You end up logged in to the jump host because your configuration explicitly says to ignore the hostname you specified and log in to the jump host.
HostName jumphost.example.com
HostName overrides the hostname specified on the command line.
If you are trying to automatically use a jump host without having to specify it on the ssh command line, the correct config file option is ProxyJump. For example:
Host everything, behind, jumphost, *.example.com
ProxyJump jumphost.example.com
Now you can just run ssh target.example.com and you will go through the jumphost.
edited Feb 16 at 16:44
kasperd
26.5k1251102
answered Feb 16 at 15:26
Michael Hampton♦Michael Hampton
170k27309633
add a comment |
You end up logged in to the jump host because your configuration explicitly says to ignore the hostname you specified and log in to the jump host.
HostName jumphost.example.com
HostName overrides the hostname specified on the command line.
If you are trying to automatically use a jump host without having to specify it on the ssh command line, the correct config file option is ProxyJump. For example:
Host everything, behind, jumphost, *.example.com
ProxyJump jumphost.example.com
Now you can just run ssh target.example.com and you will go through the jumphost.
edited Feb 16 at 16:44
kasperd
26.5k1251102
answered Feb 16 at 15:26
Michael Hampton♦Michael Hampton
170k27309633
add a comment |
You end up logged in to the jump host because your configuration explicitly says to ignore the hostname you specified and log in to the jump host.
HostName jumphost.example.com
HostName overrides the hostname specified on the command line.
If you are trying to automatically use a jump host without having to specify it on the ssh command line, the correct config file option is ProxyJump. For example:
Host everything, behind, jumphost, *.example.com
ProxyJump jumphost.example.com
Now you can just run ssh target.example.com and you will go through the jumphost.
edited Feb 16 at 16:44
kasperd
26.5k1251102
answered Feb 16 at 15:26
Michael Hampton♦Michael Hampton
170k27309633
You end up logged in to the jump host because your configuration explicitly says to ignore the hostname you specified and log in to the jump host.
HostName jumphost.example.com
HostName overrides the hostname specified on the command line.
If you are trying to automatically use a jump host without having to specify it on the ssh command line, the correct config file option is ProxyJump. For example:
Host everything, behind, jumphost, *.example.com
ProxyJump jumphost.example.com
Now you can just run ssh target.example.com and you will go through the jumphost.
edited Feb 16 at 16:44
kasperd
26.5k1251102
answered Feb 16 at 15:26
Michael Hampton♦Michael Hampton
170k27309633
edited Feb 16 at 16:44
kasperd
26.5k1251102
edited Feb 16 at 16:44
kasperd
26.5k1251102
edited Feb 16 at 16:44
kasperd
26.5k1251102
26.5k1251102
answered Feb 16 at 15:26
Michael Hampton♦Michael Hampton
170k27309633
answered Feb 16 at 15:26
Michael Hampton♦Michael Hampton
170k27309633
answered Feb 16 at 15:26
Michael Hampton♦Michael Hampton
170k27309633
170k27309633
add a comment |
add a comment |
The problem is that the Host definition catches both jumphost.example.com AND target.example.com as aliases, it then sets HostName to jumphost.example.com in both cases.
I would suggest making the aliases following the Host command NOT fully qualified domain names, then creating a Host entry for each
edited Feb 16 at 16:43
kasperd
26.5k1251102
answered Feb 16 at 15:23
NanzikambeNanzikambe
1665
add a comment |
The problem is that the Host definition catches both jumphost.example.com AND target.example.com as aliases, it then sets HostName to jumphost.example.com in both cases.
I would suggest making the aliases following the Host command NOT fully qualified domain names, then creating a Host entry for each
edited Feb 16 at 16:43
kasperd
26.5k1251102
answered Feb 16 at 15:23
NanzikambeNanzikambe
1665
add a comment |
The problem is that the Host definition catches both jumphost.example.com AND target.example.com as aliases, it then sets HostName to jumphost.example.com in both cases.
I would suggest making the aliases following the Host command NOT fully qualified domain names, then creating a Host entry for each
edited Feb 16 at 16:43
kasperd
26.5k1251102
answered Feb 16 at 15:23
NanzikambeNanzikambe
1665
The problem is that the Host definition catches both jumphost.example.com AND target.example.com as aliases, it then sets HostName to jumphost.example.com in both cases.
I would suggest making the aliases following the Host command NOT fully qualified domain names, then creating a Host entry for each
edited Feb 16 at 16:43
kasperd
26.5k1251102
answered Feb 16 at 15:23
NanzikambeNanzikambe
1665
edited Feb 16 at 16:43
kasperd
26.5k1251102
edited Feb 16 at 16:43
kasperd
26.5k1251102
edited Feb 16 at 16:43
kasperd
26.5k1251102
26.5k1251102
answered Feb 16 at 15:23
NanzikambeNanzikambe
1665
answered Feb 16 at 15:23
NanzikambeNanzikambe
1665
answered Feb 16 at 15:23
NanzikambeNanzikambe
1665
1665
add a comment |
add a comment |
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1
-JisProxyJumpand notHostName.– Boris the Spider
Feb 17 at 14:42