Forum Discussion
Koalan_365603
Nimbostratus
NimbostratusEmpty reply from a server
Can anyone explain what does this "empty reply from a server" means
See an example:
[root@F5:Active:In Sync] config curl -i http://3.3.3.3:2037/docserver/inrotation.htmlcurl: (52) Empty reply from server
ltm pool aaa_2037 { members { aaa_116:applus { address 3.3.3.3 priority-group 1 session monitor-enabled state up } min-active-members 1 monitor aaa_bbb_2037 and ccc_bbb_2037
ltm monitor tcp aaa_bbb_2037 { adaptive disabled defaults-from tcp destination *:applus interval 5 ip-dscp 0 recv none recv-disable none send none time-until-up 0 timeout 16 }
ltm monitor http ccc_bbb_2037 { adaptive disabled defaults-from http destination *:webcache interval 5 ip-dscp 0 recv in_rotation recv-disable none send "GET /docserver/inrotation.html HTTP/1.1\r\nHost: ccc-bbb.com \r\nConnection: Close\r\n" time-until-up 0 timeout 16 }
As you can see, it is still up. So i am not sure if "empty reply from server" is bad?
- Kevin_Stewart
Employee
actually the port of the pool is 2037 and the vip is 443
Right, so then you wouldn't be able to curl to the port 2037 URL. Assuming your VIP is configured correctly (client SSL profile attached, address and port translation enabled, the pool monitor is green, etc.), then you'd access the VIP using an https URL:
curl -ik https://[VIP]/docserver/inrotation.html 
JGCumulonimbus
Some errors in your config. Try this first:
ltm monitor http ccc_bbb_2037 { adaptive disabled defaults-from http destination *:webcache interval 5 ip-dscp 0 recv "in_rotation" recv-disable none send "GET /docserver/inrotation.html HTTP/1.1\r\nHost: ccc-bbb.com\r\nConnection: Close\r\n\r\n" time-until-up 0 timeout 16 }- Kevin_Stewart
I have to assume you've obfuscated your configuration here. Otherwise I'm not sure it makes sense that your pool member is 3.3.3.3:2037, and you're trying to access this through a VIP using the same IP:port. Normally the (client side) VIP would be on a separate IP (and usually separate subnet) from the internal servers.
