How to SSH directly to target via jumphost using SSH Config without additional ssh command
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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
26.6k1251104
asked Feb 16 at 15:08
AirCombatAirCombat
793833
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
26.6k1251104
asked Feb 16 at 15:08
AirCombatAirCombat
793833
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
26.6k1251104
asked Feb 16 at 15:08
AirCombatAirCombat
793833
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
26.6k1251104
asked Feb 16 at 15:08
AirCombatAirCombat
793833
edited Feb 16 at 16:43
kasperd
26.6k1251104
asked Feb 16 at 15:08
AirCombatAirCombat
793833
edited Feb 16 at 16:43
kasperd
26.6k1251104
edited Feb 16 at 16:43
kasperd
26.6k1251104
edited Feb 16 at 16:43
kasperd
26.6k1251104
26.6k1251104
asked Feb 16 at 15:08
AirCombatAirCombat
793833
asked Feb 16 at 15:08
AirCombatAirCombat
793833
asked Feb 16 at 15:08
AirCombatAirCombat
793833
793833
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
26.6k1251104
answered Feb 16 at 15:26
Michael Hampton♦Michael Hampton
172k27315642
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
26.6k1251104
answered Feb 16 at 15:23
NanzikambeNanzikambe
2365
add a comment |
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2 Answers
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active
oldest
votes
2 Answers
2
active
oldest
votes
active
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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
26.6k1251104
answered Feb 16 at 15:26
Michael Hampton♦Michael Hampton
172k27315642
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
26.6k1251104
answered Feb 16 at 15:26
Michael Hampton♦Michael Hampton
172k27315642
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
26.6k1251104
answered Feb 16 at 15:26
Michael Hampton♦Michael Hampton
172k27315642
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
26.6k1251104
answered Feb 16 at 15:26
Michael Hampton♦Michael Hampton
172k27315642
edited Feb 16 at 16:44
kasperd
26.6k1251104
edited Feb 16 at 16:44
kasperd
26.6k1251104
edited Feb 16 at 16:44
kasperd
26.6k1251104
26.6k1251104
answered Feb 16 at 15:26
Michael Hampton♦Michael Hampton
172k27315642
answered Feb 16 at 15:26
Michael Hampton♦Michael Hampton
172k27315642
answered Feb 16 at 15:26
Michael Hampton♦Michael Hampton
172k27315642
172k27315642
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
26.6k1251104
answered Feb 16 at 15:23
NanzikambeNanzikambe
2365
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
26.6k1251104
answered Feb 16 at 15:23
NanzikambeNanzikambe
2365
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
26.6k1251104
answered Feb 16 at 15:23
NanzikambeNanzikambe
2365
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
26.6k1251104
answered Feb 16 at 15:23
NanzikambeNanzikambe
2365
edited Feb 16 at 16:43
kasperd
26.6k1251104
edited Feb 16 at 16:43
kasperd
26.6k1251104
edited Feb 16 at 16:43
kasperd
26.6k1251104
26.6k1251104
answered Feb 16 at 15:23
NanzikambeNanzikambe
2365
answered Feb 16 at 15:23
NanzikambeNanzikambe
2365
answered Feb 16 at 15:23
NanzikambeNanzikambe
2365
2365
add a comment |
add a comment |
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1
-JisProxyJumpand notHostName.– Boris the Spider
Feb 17 at 14:42