Access denied - SSH login
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This will show your Fail2Ban jails and display whether your IP blacklisted.
sudo iptables -L -n -
Nothing is blacklisted. In fact, in both Fail2Ban as well as the Responsive firewall in firewall, the IP I'm trying to connect from is whitelisted/in the trusted zone.
For good measure, I stopped Fail2Ban, and still receive the same messages.
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<sarcasm>
Are you certain CAPS-LOCK isn't on?
</sarcasm> -
Are you monitoring the /var/log/secure file as you are trying to connect? Have you tried connecting to the freepbx IP instead of hostname?
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Just tried, and it says Failed password for invalid user root from IP port xxxxx ssh2
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"invalid user root"
What does your sshd_config file look like? Is root allowed? Have you restarted the ssh server since you made the last changes to the config file?
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@RamblingBiped said in Access denied - SSH login:
"invalid user root"
What does your sshd_config file look like? Is root allowed? Have you restarted the ssh server since you made the last changes to the config file?
Yes, service is restarted. The only changes to the stock sshd_config flle is:
PermitRootLogin yes
AllowGroups wheel
Port xxxx
AddressFamily inet -
Firewall?
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Test the login from the box itself using the loopback 127.0.0.1
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@scottalanmiller said in Access denied - SSH login:
Test the login from the box itself using the loopback 127.0.0.1
No go. Permission denied, using the same password that I just logged in with.
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@fuznutz04 said in Access denied - SSH login:
@scottalanmiller said in Access denied - SSH login:
Test the login from the box itself using the loopback 127.0.0.1
No go. Permission denied, using the same password that I just logged in with.
Okay, so you can rule out networking, both firewalls, etc. It's all down to SSH configuration at this point.
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@scottalanmiller said in Access denied - SSH login:
@fuznutz04 said in Access denied - SSH login:
@scottalanmiller said in Access denied - SSH login:
Test the login from the box itself using the loopback 127.0.0.1
No go. Permission denied, using the same password that I just logged in with.
Okay, so you can rule out networking, both firewalls, etc. It's all down to SSH configuration at this point.
Thanks for the tip. That definitely narrowed it down. So after playing with the config file for a while, I concluded that the problem is the line:
AllowGroups wheelIf I comment that out, it works perfect. if it's uncommented, it doesn't allow access, even to root.
(looks up and to the right while squinting eyes, confused...)
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Yeah, that is a bit odd.
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@fuznutz04 If you comment out 'PermitRootLogin yes' and leave 'AllowGroups wheel' in, are you able to login as a member of the wheel group? Thinking it might not like overlapping root and wheel, maybe.
I'm with @scottalanmiller, it doesn't make sense either way.
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I think allow group will only allow members from that group and since root isn't part of wheel it can't log in.
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If you add
AllowUsers rootit should also let root along with the wheel group.
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@travisdh1 Didn't like that either. It also doesn't work if I remove AllowGroups and try it with AllowUsers. It's almost like any line I add into that config borks the entire thing.
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Very odd, indeed. Sorry I don't have any magic insight there.
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@scottalanmiller Yeah, it was a test box on Vultr, and in the end, I'll probably just reinstall it, but the fact that it's doing this is bothering me, especially thinking about if it would be a production box. Oh well, thanks for the help.
