Using the iapp for sharepoint:

Turning on debugging, I get the following /var/log/bigdlog entries. The interesting part is in the middle.

What does error=5 mean?

2013-09-13 16:36:01.752568: ID 108   :(_do_ping): time to ping, now=1379082961.114839 [ addr=::ffff:172.17.37.173:443 mon=/Common/crmdemo_sp.app/crmdemo_sp_https_monitor fd=-1 pend=0 conn=0 up_intvl=30 dn_intvl=30 timeout=91 time_until_up=0 immed=0 next_ping=1379082961.070839 last_ping=1379082931.077839 deadline=1379082965.582839 snd_cnt=114 rcv_cnt=0 ]
2013-09-13 16:36:01.752594: ID 108   :(_send_active_service_ping): pinging [ addr=::ffff:172.17.37.173:443 srcaddr=none ]
2013-09-13 16:36:01.752605: ID 108   :(_connect_to_service): creating new socket (rd0) [ addr=::ffff:172.17.37.173:443 ]
2013-09-13 16:36:01.752654: ID 108   :(_connect_to_service): connect: Operation now in progress [ addr=::ffff:172.17.37.173:443 srcaddr=::ffff:172.17.17.2%0:43074 ]
2013-09-13 16:36:01.756842: ID 108   :(_main_loop): wfd selected [ addr=::ffff:172.17.37.173:443 srcaddr=::ffff:172.17.17.2%0:43074 fd=10 pend=1 conn=1 ]
2013-09-13 16:36:01.756856: ID 108   :(_send_active_service_ping): pinging [ addr=::ffff:172.17.37.173:443 srcaddr=::ffff:172.17.17.2%0:43074 ]
2013-09-13 16:36:01.756872: ID 108   :(_send_active_service_ping): writing [ addr=::ffff:172.17.37.173:443 srcaddr=::ffff:172.17.17.2%0:43074 ] send=GET /sites/test HTTP/1.1\x0d\x0aHost: sharepoint.domain.de\x0d\x0aConnection: Close\x0d\x0a\x0d\x0aAuthorization: Basic d2ViZXJhQG1zY3JtZGVtby5wcmk6ZGJkZGhrcC4x\x0d\x0a\x0d\x0a
2013-09-13 16:36:01.762803: ID 108   :(_main_loop): rfd selected [ addr=::ffff:172.17.37.173:443 srcaddr=::ffff:172.17.17.2%0:43074 fd=10 pend=0 conn=0 ]
2013-09-13 16:36:01.762827: ID 108   :(_recv_active_service_ping): reading [ addr=::ffff:172.17.37.173:443 srcaddr=::ffff:172.17.17.2%0:43074 ]
2013-09-13 16:36:01.762840: ID 108   :(_send_active_service_ping): pinging [ addr=::ffff:172.17.37.173:443 srcaddr=::ffff:172.17.17.2%0:43074 ]
2013-09-13 16:36:01.762851: ID 108   :(_send_active_service_ping): writing [ addr=::ffff:172.17.37.173:443 srcaddr=::ffff:172.17.17.2%0:43074 ] send=GET /sites/test HTTP/1.1\x0d\x0aHost: sharepoint.domain.de\x0d\x0aConnection: Close\x0d\x0a\x0d\x0aAuthorization: Basic d2ViZXJhQG1zY3JtZGVtby5wcmk6ZGJkZGhrcC4x\x0d\x0a\x0d\x0a

2013-09-13 16:36:01.762895: ID 108   :SSL_write() returns -1, error=5 [ srcaddr=::ffff:172.17.17.2%0:43074 ]
2013-09-13 16:36:01.762915: ID 108   :(_ssl_shutdown_service): shutting down, return ssl false [ addr=::ffff:172.17.37.173:443 srcaddr=::ffff:172.17.17.2%0:43074 mon=/Common/crmdemo_sp.app/crmdemo_sp_https_monitor fd=10 ]
2013-09-13 16:36:01.762934: ID 108   :(_send_active_service_ping): unable to connect; giving up [ addr=::ffff:172.17.37.173:443 srcaddr=::ffff:172.17.17.2%0:43074 ]

2013-09-13 16:36:01.762947: ID 108   :(_ssl_shutdown_service): shutting down, return ssl true [ addr=::ffff:172.17.37.173:443 srcaddr=::ffff:172.17.17.2%0:43074 mon=/Common/crmdemo_sp.app/crmdemo_sp_https_monitor fd=10 ]
2013-09-13 16:36:01.762966: ID 108   :(_ssl_shutdown_service): shutting down, return ssl true [ addr=::ffff:172.17.37.173:443 srcaddr=none mon=/Common/crmdemo_sp.app/crmdemo_sp_https_monitor fd=-1 ]