I've got a VPS with Centos 6.4 installed. I used to have a VPS at Digital Ocean that when I start PostgreSQL or Monit that bind to localhost, they all work fine. But on the new VPS, when I have PostgreSQL listen to "localhost", PostgreSQL is saying:
WARNING: could not create listen socket for "localhost"
And Monit, when I tell Monit to listen on "localhost", Monit is saying:
http server: Could not create a server socket at port 2812 -- Cannot assign requested address
I wonder what could be wrong on my VPS that lead to such behavior. If I have PostgreSQL listen on '*' instead of "localhost" then it runs just fine.
Update:
My ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:50:56:0A:01:3D
inet addr:xxx.xx.xxx.xxx Bcast:103.27.236.127 Mask:255.255.255.192
inet6 addr: fe80::250:56ff:fe0a:13d/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:198875 errors:0 dropped:0 overruns:0 frame:0
TX packets:49492 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:135854898 (129.5 MiB) TX bytes:7779876 (7.4 MiB)
lo Link encap:Local Loopback
LOOPBACK MTU:16436 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
My /etc/hosts
127.0.0.1 localhost.localdomain localhost localhost4 localhost4.localdomain4 CentOS64
::1 localhost localhost.localdomain localhost6.localdomain6 localhost6