Quoting Kjetil Torgrim Homme:
>> # ip a show eth0
>> 2: eth0: <BROADCAST,MULTICAST,UP> mtu 1500 qdisc htb qlen 1000
>> link/ether 00:b0:d0:73:d5:94 brd ff:ff:ff:ff:ff:ff
>> inet 80.53.26.122/29 scope global eth0
>> inet 80.53.26.124/29 scope global eth0
> this looks very fishy to me. 122/29 and 124/29 are overlapping. you
> should set your extra IP to /32.
There's nothing fishy about that, just two addresses in the same subnet.
I've been using this myself since many years (though with the old eth0:x
alias method) to run multiple services on one server and leave me the
option to move some of them to another server without caring about DNS
caching. I call it the "1 address per service" model.
I didn't test it, but changing the netmask of the second IP address to
/32 could prevent it from reaching the default gateway. It's not
necessary anyway.
