ElliotFriend's picture

Hello, world!

Background: We've had a Moodle Appliance running happily for quite some time. Other machines (virtual and physical) sitting in the DMZ appear to be working fine. A week or two ago, we upgraded our internet bandwidth and router along with it. We have a mikrotik router, and all port forwards appear to be working properly, all NAT/Firewall rules were set up identically to the original router. The machine can ping the outside world (by name or IP), but I can't seem to interract with the internet, otherwise. 'apt-get update' gives me a timed out connection. All i'm seeing in my postfix logs are 'Connection timed out'. I appear to be unable to run a normal traceroute, as well.

I should also mention, that I can access the server from the internet without issue. The webserver is running, and responding to requests, even outside of the LAN. 

root@moodle ~# ifconfig eth1
	eth1      Link encap:Ethernet  HWaddr 00:50:56:9e:1d:c1
inet addr:  Bcast:  Mask:
          inet6 addr: fe80::250:56ff:fe9e:1dc1/64 Scope:Link
          RX packets:11066 errors:0 dropped:0 overruns:0 frame:0
          TX packets:15816 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1213290 (1.2 MB)  TX bytes:5193934 (5.1 MB)
          Interrupt:19 Base address:0x2000

root@moodle ~# route
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface       *        U     0      0        0 eth1
default         UG    100    0        0 eth1

Anyone have any suggestions? If any additional information might be helpful, just let me know. I realize this may be more of an Ubuntu issue, but I thought I'd start here.

EDIT: It appears that a normal traceroute is successful. A forum post I saw recommended trying 'traceroute -I' and 'traceroute -T'. The latter, is unsuccessful, however.


ElliotFriend's picture

This was an issue with my firewall rules. I'll have to figure out why the rule was messed up, but the problem was outside the scope of Ubuntu and Turnkey.


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