Re: [PLUG] Puzzling openssh problem

[JP Vossen via plug <plug@lists.phillylinux.org>]

Debian (and related) is doing the "127.0.1.1" thing in /etc/hosts, but 
I'm not sure why.  Perhaps a systemd thing?

Maybe check for IPA and hostname conflicts or unexpected values with 
something like:
egrep -iR "$HOSTNAME|localhost|127\.0| \
  /etc/host* /etc/ssh* ~/.ssh/config*


On 7/23/20 5:57 PM, K.S. Bhaskar via plug wrote:
> Thank you, you're right: the 127.0.1.1 is puzzling and I have no idea 
> where it's coming from, because ip addr show clearly shows the IP 
> address as 127.0.0.1. I may have to go in myself tomorrow to try to 
> figure it out (right now one of our developers is in the office and I'm 
> working remotely).
>
> – Bhaskar
>
> On Thu, Jul 23, 2020 at 5:37 PM Jon Boone <ipmonger@delamancha.org 
> <mailto:ipmonger@delamancha.org>> wrote:
>
>
>
>     Sent from my iPhone
>
> >     I have a really puzzling problem now in that ssh localhost does
> >     not work (it says Connection closed by 127.0.1.1 port 22)
>
>     Is localhost defined in your ~/.ssh/config file?   I’m surprised
>     your localhost would be defined as 127.0.1.1.
>
>     Also, your ssh_config file may not allow you to open IPv6
>     connections, whereas telnet clearly does.
>
>     Finally, check iptables rules for IPv4 localhost port 22.
>     —jon 


Later,
JP
--  -------------------------------------------------------------------
JP Vossen, CISSP | http://www.jpsdomain.org/ | http://bashcookbook.com/
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