I've installed ISPConfig on CentOS using the perfect setup howto on this site. This was all done at home and after some configuration, it worked fine. Both nic's had 192.168.1.110 and 111... Now i've placed my server in a datacenter and my provider gave me some technical info to config my server. The server is connected to the net with a 100Mbit connection. IP range : 213.xxx.xxx.56/29 Default gateway : 213.xxx.xxx.57 Netmask : 255.255.255.248 Nameservers : 194.159.xxx.136 - 194.159.xxx.135 Code: DEVICE=eth0 BOOTPROTO=none BROADCAST=213.xxx.xxx.63 HWADDR=00:30:48:57:xx:xx IPADDR=213.xxx.xxx.58 NETMASK=255.255.255.248 NETWORK=213.xxx.xxx.56 ONBOOT=yes TYPE=Ethernet GATEWAY=213.xxx.xxx.57 Now i've changed the first nic to 213.xxx.xxx.58, gateway 213.xxx.xxx.57 and netmask 255.255.255.248. This is /etc/hosts Code: # Do not remove the following line, or various programs # that require network functionality will fail. 127.0.0.1 localhost.localdomain localhost 213.xxx.xxx.58 C01S01.domain_name.tld C01S01 The nameservers where already put in resolv.conf, since the provider at home is also colocating my server. Also in ISPConfig server settings: Code: Servername: C01S01 Hostname : www Domain: domain_name.tld IP address: 213.xxx.xxx.58 Netmask: 255.255.255.248 IP list: 213.xxx.xxx.59 213.xxx.xxx.60 213.xxx.xxx.61 213.xxx.xxx.62 I've tried to ping 18.104.22.168, but nothing... only the default gateway is pingable. The stats of my server, shows very little datatraffic... but still, it is traffic! Now the support dude, told me to set my nic's to full duplex... but I didn't know how to do that and i think they're already full duplex anyway. Can anybody please help me with some advice, because I'm starting to lose my head over this. Thanks! ps. keep in mind that i'm not at liberty to post results of any command when asked, since the server is about an hour driving. Thanks again.