9.21 on two 1and1 servers, Migration Manger doesn't connect.

[damon]

I've setup a new 1and1 linux server using the Centos Atomic script and installed ASL.

Now I'm trying to get a large site off the old server using Migration Manager and find that the MM login (initial step) fails. I tried pinging from the new to old server and get one ping then timeout. I tried a tracert and get two hops (to local ip), then 28 timeouts.

Is ASL or 1and1 stopping traffic between the two servers? Any other ideas for getting it going?

Old server is 1and1, Centos 4.4 (Atomic script), Plesk 9.21
New server is 1and1, Centos 5.2 (Atomic script), Plesk 9.21, and ASL

[scott]

No theres nothing it would do like that, just to double check though take a look at the firewall rules with iptables -L -n

[damon]

No theres nothing it would do like that, just to double check though take a look at the firewall rules with iptables -L -n

Code: Select all

# iptables -L -n
Chain INPUT (policy ACCEPT)
target     prot opt source               destination

Chain FORWARD (policy ACCEPT)
target     prot opt source               destination

Chain OUTPUT (policy ACCEPT)
target     prot opt source               destination

Chain ASL-BLACKLIST (0 references)
target     prot opt source               destination
DROP       all  --  0.0.0.0/0            0.0.0.0/0

Does 1and1 do anything to stop traffic from one of their servers to another? They both have the same IP range, starting with 74.208.xxx.xxx .

I can ping other sites (google.com, atomicorp.com) from the servers, and ping my servers from outside, just can't ping from one to the other, which I'm guessing is why migration manager doesn't work.

[scott]

yes, they do filter everything outbound on new servers. You have to call them to open it up

[damon]

I just wanted to report back on what the problem was and the solution for 1and1 servers.

It was the subnet masks on the IP addressess of the server. Apparently two servers in the same 1and1 data center can't talk to each other unless the NETMASK line in
/etc/sysconfig/networking-scripts/icfg-lo is set to 255.255.255.255 on each server.

That still didn't solve my problem until the same thing was done for each IP on the servers by editing
/etc/sysconfig/networking-scripts/ifcfg-eth0:1, 2, 3 etc.

Then I restarted networking with
/etc/init.d/network restart

and I can now ping between servers. Now to try the Migration Manager again.