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Basic question. I have memcached installed on my EC2 instance.

It has an elastic IP address of, say, 101.45.23.18, and ifconfig shows

eth0 Link encap:Ethernet HWaddr 12:31:3b:0e:3a:8f inet addr:10.241.13.121 Bcast:10.241.13.255 Mask:255.255.255.0 inet6 addr: fe80::1031:3bff:fe0e:3a8f/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2654 errors:0 dropped:0 overruns:0 frame:0 TX packets:1717 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:1806365 (1.8 MB) TX bytes:206184 (206.1 KB) Interrupt:26 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) 

How do I start memcached to listen on the external IP address rather than the internal one?

1 Answer 1

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Solved it. Supereasy - you can't bind directly to the elastic IP address, but you can bind to 0.0.0.0 which solves the problem.

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