Networking somehow broken. Kinda confusing.

[SpaceTurtle]

I have somehow created a situation i cant explain and would really appreciate some help.
I'll copy paste a pastebin which i posted in IRC, where nobody was able to help:

Server 1 is the "frontend server", which should communicate over SOAP
with Server 2. Both are virtual proxmox OpenVZ server with their own IP.

Server 1 runs Debian wheezy
Server 2 runs CentOS 6 (with Interworx Panel)

Somehow Server 2 cant ping server 1, and server 1 can ping server 2
but does not get any soap results trough dont finding the host.

Server 1:

[COLOR=#000000][COLOR=#666666][I]# ping SERVER2[/I][/COLOR][/COLOR]
[COLOR=#000000]PING SERVER2 [COLOR=#7A0874][B]([/B][/COLOR]SERVER2[COLOR=#7A0874][B])[/B][/COLOR] 56[COLOR=#7A0874][B]([/B][/COLOR]84[COLOR=#7A0874][B])[/B][/COLOR] bytes of data.[/COLOR]
[COLOR=#000000]64 bytes from SERVER2: [COLOR=#007800]icmp_req[/COLOR]=1 [COLOR=#007800]ttl[/COLOR]=64 [COLOR=#007800]time[/COLOR]=0.026 ms[/COLOR]
[COLOR=#000000]64 bytes from SERVER2: [COLOR=#007800]icmp_req[/COLOR]=2 [COLOR=#007800]ttl[/COLOR]=64 [COLOR=#007800]time[/COLOR]=0.027 ms
[/COLOR]
[COLOR=#000000][COLOR=#666666][I]# curl https://SERVER2:2443/soap?wsdl --insecure[/I][/COLOR][/COLOR]
[COLOR=#000000]curl: [COLOR=#7A0874][B]([/B][/COLOR]7[COLOR=#7A0874][B])[/B][/COLOR] couldn[COLOR=#FF0000]'t connect to host[/COLOR][/COLOR]

Server 2:

ping SERVER1
PING SERVER1 (SERVER1) 56(84) bytes of data.
^C
--- SERVER1 ping statistics ---
3 packets transmitted, 0 received, 100% packet loss, time 2535ms

Local:

$ sudo ping SERVER2
PING SERVER2 (SERVER2) 56(84) bytes of data.
64 bytes from SERVER2: icmp_seq=1 ttl=53 time=24.9 ms
64 bytes from SERVER2: icmp_seq=2 ttl=53 time=25.3 ms

$ curl https://SERVER2:2443/soap?wsdl --insecure
<?xml version="1.0"?>
... ALL GOOD ...

There is no Firewall enabled currently and i really have no idea what could cousing this.

 

[simonc1001]

I am wondering if the service is running on your specified port.

Can you execute the command below in SERVER2 and show the output for us?
netstat -an | grep LISTEN | grep 2443

 

[SpaceTurtle]

Yeah it sorrily was. But anyway, as it was a test install anyway i started from new and it works again like expected.
Hopfully it wont happen again.

Thanks anyway.