I just came across something strange with my fully updated Centos7 server. When I try to ssh into it the same way I've always done I get "Too many authentication failures". This just came out of the blue. I'm using the root account and a password. But in my sshd_config it still reads #MaxAuthTries 6 Which I think is the default.
From the console I can log in fine and when I look in the logs for sshd
I can just see the the attempts I just made, that are less than six and no previous denied attemps.
Any clues what's going on?
On Sat, Nov 20, 2021 at 2:32 PM Andreas Fournier andreas.fournier@runbox.com wrote:
I just came across something strange with my fully updated Centos7 server. When I try to ssh into it the same way I've always done I get "Too many authentication failures". This just came out of the blue. I'm using the root account and a password. But in my sshd_config it still reads #MaxAuthTries 6 Which I think is the default.
From the console I can log in fine and when I look in the logs for sshd I can just see the the attempts I just made, that are less than six and no previous denied attemps.
Any clues what's going on?
I got the same error once. In my case the problem was ssh tried to log in with ssh keys before giving a password prompt.
On Sat, 2021-11-20 at 15:33 +0530, Thomas Stephen Lee wrote:
On Sat, Nov 20, 2021 at 2:32 PM Andreas Fournier andreas.fournier@runbox.com wrote:
I just came across something strange with my fully updated Centos7 server. When I try to ssh into it the same way I've always done I get "Too many authentication failures". This just came out of the blue. I'm using the root account and a password. But in my sshd_config it still reads #MaxAuthTries 6 Which I think is the default.
From the console I can log in fine and when I look in the logs for sshd I can just see the the attempts I just made, that are less than six and no previous denied attemps.
Any clues what's going on?
I got the same error once. In my case the problem was ssh tried to log in with ssh keys before giving a password prompt.
Thanks, same for me. I had added a new key for a different server to the ssh client machine that got it over the limit.
/Andreas
On Sat, 2021-11-20 at 11:46 +0100, Andreas Fournier wrote:
On Sat, 2021-11-20 at 15:33 +0530, Thomas Stephen Lee wrote:
On Sat, Nov 20, 2021 at 2:32 PM Andreas Fournier andreas.fournier@runbox.com wrote:
I just came across something strange with my fully updated Centos7 server. When I try to ssh into it the same way I've always done I get "Too many authentication failures". This just came out of the blue. I'm using the root account and a password. But in my sshd_config it still reads #MaxAuthTries 6 Which I think is the default.
From the console I can log in fine and when I look in the logs for sshd I can just see the the attempts I just made, that are less than six and no previous denied attemps.
Any clues what's going on?
I got the same error once. In my case the problem was ssh tried to log in with ssh keys before giving a password prompt.
Thanks, same for me. I had added a new key for a different server to the ssh client machine that got it over the limit.
This got me wondering what is the best practice for a situation where you have a machine with more than five keys on file in able to ssh to different servers. But you would also like to ssh with password to an other set of servers.
/Andreas
Am 21.11.21 um 20:07 schrieb Andreas Fournier:
On Sat, 2021-11-20 at 11:46 +0100, Andreas Fournier wrote:
On Sat, 2021-11-20 at 15:33 +0530, Thomas Stephen Lee wrote:
On Sat, Nov 20, 2021 at 2:32 PM Andreas Fournier andreas.fournier@runbox.com wrote:
I just came across something strange with my fully updated Centos7 server. When I try to ssh into it the same way I've always done I get "Too many authentication failures". This just came out of the blue. I'm using the root account and a password. But in my sshd_config it still reads #MaxAuthTries 6 Which I think is the default.
From the console I can log in fine and when I look in the logs for sshd I can just see the the attempts I just made, that are less than six and no previous denied attemps.
Any clues what's going on?
I got the same error once. In my case the problem was ssh tried to log in with ssh keys before giving a password prompt.
Thanks, same for me. I had added a new key for a different server to the ssh client machine that got it over the limit.
This got me wondering what is the best practice for a situation where you have a machine with more than five keys on file in able to ssh to different servers. But you would also like to ssh with password to an other set of servers.
I would suggest to configure your needs in .ssh/config
Check man ssh_config. Example:
#.ssh/config
Host myhost.example PubkeyAuthentication yes User myuser.example IdentityFile ~/.ssh/mysecretkey.example
Host * PubkeyAuthentication no
Just to get the idea. Top-down, first entry win, last is the default.
-- Leon
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Andreas Fournier -
Leon Fauster -
Thomas Stephen Lee