From my office and home, I can access a web service, no problem. However, from my server at the data center, I cannot. Could this be a DNS issue? I've tried with iptables enabled and disabled. selinux is disabled. This server has multiple network interfaces, one public and two private. The public has a WAN IP address (18.104.22.168), the private is 10.1.10.2 and the other private is connected via crossover cable to another server 192.168.100.1. I think route -n tells me the WAN interface is used to access the internet, as its gateway is my ISP's upstream gateway. CentOS 5.5
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
ISP.netwpork.no 0.0.0.0 255.255.255.240 U 0 0 0 eth2
192.168.100.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1
10.1.10.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth2
0.0.0.0 up.stream.gw 0.0.0.0 UG 0 0 0 eth2
(I've also tried inserting two lines at the top of /etc/resolve.conf with my data center's recommended DNS, but that didn't work either
Making HTTP connection to site.iam.trying
Alert!: Unable to connect to remote host.
lynx: Can't access startfile http://site.iam.trying/service.asmx
here are the kickers, lynx works from three other servers behind the firewall (only one network interface, LAN-only) no problem. lynx also
works from the problem box
fine when i surf to google.com, slashdot.org, etc.
What else can I try?