I saw this, may most related the ssl certification:
[Thu Dec 03 14:33:47 2009] [error] [client 192.168.17.100] 0.01 (1): SELECT * FROM sessions WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/aliase … ycolor.com
[Thu Dec 03 14:33:47 2009] [error] [client 192.168.17.100] 0.0 (2): SELECT * FROM sessions WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/aliase … ycolor.com
[Thu Dec 03 14:33:47 2009] [error] [client 192.168.17.100] 0.0 (3): UPDATE sessions SET atime = '2009-12-03T14:33:47.112270' WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/aliase … ycolor.com
[Thu Dec 03 14:33:47 2009] [error] [client 192.168.17.100] 0.0 (4): SELECT * FROM sessions WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/aliase … ycolor.com
[Thu Dec 03 14:33:47 2009] [error] [client 192.168.17.100] 0.0 (5): UPDATE sessions SET data = 'KGRwMQpTJ3VzZXJuYW1lJwpwMgpTJ3Bvc3RtYXN0ZXJAcHJpbWFyeWNvbG9yLmNvbScKcDMKc1Mn\\nbGFuZycKcDQKUydlbl9VUycKcDUKc1MnZG9tYWluR2xvYmFsQWRtaW4nCnA2ClMneWVzJwpwNwpz\\nUydpcCcKcDgKVjE5Mi4xNjguMTcuMTAwCnA5CnNTJ2xvZ2dlZCcKcDEwCkkwMQpzUydzZXNzaW9u\\nX2lkJwpwMTEKUydmM2EwZDZlYTBiYmEyNjUwZTFjMjAwZGRhMDA4OWQ3M2IwZmVlYTE4JwpwMTIK\\nc1MncGFnZXNpemVsaW1pdCcKcDEzCkkzMApzUydmYWlsZWRUaW1lcycKcDE0CkkwCnNTJ3dlYm1h\\nc3RlcicKcDE1ClMnd3d3QHByaW1hcnljb2xvci5jb20nCnAxNgpzLg==\\n' WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/aliase … ycolor.com
[Thu Dec 03 14:33:47 2009] [error] [client 192.168.17.100] 0.0 (1): SELECT * FROM sessions WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/aliase … ycolor.com
[Thu Dec 03 14:33:47 2009] [error] [client 192.168.17.100] 0.0 (2): SELECT * FROM sessions WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/aliase … ycolor.com
[Thu Dec 03 14:33:47 2009] [error] [client 192.168.17.100] 0.01 (3): UPDATE sessions SET atime = '2009-12-03T14:33:47.389938' WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/aliase … ycolor.com
[Thu Dec 03 14:33:48 2009] [error] [client 192.168.17.100] 0.0 (4): SELECT * FROM sessions WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/aliase … ycolor.com
[Thu Dec 03 14:33:48 2009] [error] [client 192.168.17.100] 0.0 (5): UPDATE sessions SET data = 'KGRwMQpTJ3VzZXJuYW1lJwpwMgpTJ3Bvc3RtYXN0ZXJAcHJpbWFyeWNvbG9yLmNvbScKcDMKc1Mn\\nbGFuZycKcDQKUydlbl9VUycKcDUKc1MnZG9tYWluR2xvYmFsQWRtaW4nCnA2ClMneWVzJwpwNwpz\\nUydpcCcKcDgKVjE5Mi4xNjguMTcuMTAwCnA5CnNTJ2xvZ2dlZCcKcDEwCkkwMQpzUydzZXNzaW9u\\nX2lkJwpwMTEKUydmM2EwZDZlYTBiYmEyNjUwZTFjMjAwZGRhMDA4OWQ3M2IwZmVlYTE4JwpwMTIK\\nc1MncGFnZXNpemVsaW1pdCcKcDEzCkkzMApzUydmYWlsZWRUaW1lcycKcDE0CkkwCnNTJ3dlYm1h\\nc3RlcicKcDE1ClMnd3d3QHByaW1hcnljb2xvci5jb20nCnAxNgpzLg==\\n' WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/aliase … ycolor.com
[Thu Dec 03 14:33:52 2009] [error] [client 192.168.17.100] 0.0 (1): DELETE FROM sessions WHERE '2009-12-02T14:33:52.380540' > atime, referer: https://192.168.17.101/iredadmin/aliase … ED_SUCCESS
[Thu Dec 03 14:33:52 2009] [error] [client 192.168.17.100] 0.0 (2): SELECT * FROM sessions WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/aliase … ED_SUCCESS
[Thu Dec 03 14:33:52 2009] [error] [client 192.168.17.100] 0.0 (3): SELECT * FROM sessions WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/aliase … ED_SUCCESS
[Thu Dec 03 14:33:52 2009] [error] [client 192.168.17.100] 0.0 (4): UPDATE sessions SET atime = '2009-12-03T14:33:52.475511' WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/aliase … ED_SUCCESS
[Thu Dec 03 14:33:53 2009] [error] [client 192.168.17.100] 0.01 (5): SELECT * FROM sessions WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/aliase … ED_SUCCESS
[Thu Dec 03 14:33:53 2009] [error] [client 192.168.17.100] 0.0 (6): UPDATE sessions SET data = 'KGRwMQpTJ3VzZXJuYW1lJwpwMgpTJ3Bvc3RtYXN0ZXJAcHJpbWFyeWNvbG9yLmNvbScKcDMKc1Mn\\nbGFuZycKcDQKUydlbl9VUycKcDUKc1MnZG9tYWluR2xvYmFsQWRtaW4nCnA2ClMneWVzJwpwNwpz\\nUydpcCcKcDgKVjE5Mi4xNjguMTcuMTAwCnA5CnNTJ2xvZ2dlZCcKcDEwCkkwMQpzUydzZXNzaW9u\\nX2lkJwpwMTEKUydmM2EwZDZlYTBiYmEyNjUwZTFjMjAwZGRhMDA4OWQ3M2IwZmVlYTE4JwpwMTIK\\nc1MncGFnZXNpemVsaW1pdCcKcDEzCkkzMApzUydmYWlsZWRUaW1lcycKcDE0CkkwCnNTJ3dlYm1h\\nc3RlcicKcDE1ClMnd3d3QHByaW1hcnljb2xvci5jb20nCnAxNgpzLg==\\n' WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/aliase … ED_SUCCESS
[Thu Dec 03 14:33:55 2009] [error] [client 192.168.17.100] 0.0 (1): SELECT * FROM sessions WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/maillists
[Thu Dec 03 14:33:55 2009] [error] [client 192.168.17.100] 0.0 (2): SELECT * FROM sessions WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/maillists
[Thu Dec 03 14:33:55 2009] [error] [client 192.168.17.100] 0.0 (3): UPDATE sessions SET atime = '2009-12-03T14:33:55.148666' WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/maillists
[Thu Dec 03 14:33:55 2009] [error] [client 192.168.17.100] 0.01 (4): SELECT * FROM sessions WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/maillists
[Thu Dec 03 14:33:55 2009] [error] [client 192.168.17.100] 0.0 (5): UPDATE sessions SET data = 'KGRwMQpTJ3VzZXJuYW1lJwpwMgpTJ3Bvc3RtYXN0ZXJAcHJpbWFyeWNvbG9yLmNvbScKcDMKc1Mn\\nbGFuZycKcDQKUydlbl9VUycKcDUKc1MnZG9tYWluR2xvYmFsQWRtaW4nCnA2ClMneWVzJwpwNwpz\\nUydpcCcKcDgKVjE5Mi4xNjguMTcuMTAwCnA5CnNTJ2xvZ2dlZCcKcDEwCkkwMQpzUydzZXNzaW9u\\nX2lkJwpwMTEKUydmM2EwZDZlYTBiYmEyNjUwZTFjMjAwZGRhMDA4OWQ3M2IwZmVlYTE4JwpwMTIK\\nc1MncGFnZXNpemVsaW1pdCcKcDEzCkkzMApzUydmYWlsZWRUaW1lcycKcDE0CkkwCnNTJ3dlYm1h\\nc3RlcicKcDE1ClMnd3d3QHByaW1hcnljb2xvci5jb20nCnAxNgpzLg==\\n' WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18', referer: https://192.168.17.101/iredadmin/maillists
[Thu Dec 03 14:33:57 2009] [error] [client 192.168.17.100] 0.0 (1): SELECT * FROM sessions WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18'
[Thu Dec 03 14:33:57 2009] [error] [client 192.168.17.100] 0.0 (2): SELECT * FROM sessions WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18'
[Thu Dec 03 14:33:57 2009] [error] [client 192.168.17.100] 0.0 (3): UPDATE sessions SET atime = '2009-12-03T14:33:57.506197' WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18'
[Thu Dec 03 14:33:57 2009] [error] [client 192.168.17.100] 0.0 (4): SELECT * FROM sessions WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18'
[Thu Dec 03 14:33:57 2009] [error] [client 192.168.17.100] 0.0 (5): UPDATE sessions SET data = 'KGRwMQpTJ3VzZXJuYW1lJwpwMgpTJ3Bvc3RtYXN0ZXJAcHJpbWFyeWNvbG9yLmNvbScKcDMKc1Mn\\nbGFuZycKcDQKUydlbl9VUycKcDUKc1MnZG9tYWluR2xvYmFsQWRtaW4nCnA2ClMneWVzJwpwNwpz\\nUydpcCcKcDgKVjE5Mi4xNjguMTcuMTAwCnA5CnNTJ2xvZ2dlZCcKcDEwCkkwMQpzUydzZXNzaW9u\\nX2lkJwpwMTEKUydmM2EwZDZlYTBiYmEyNjUwZTFjMjAwZGRhMDA4OWQ3M2IwZmVlYTE4JwpwMTIK\\nc1MncGFnZXNpemVsaW1pdCcKcDEzCkkzMApzUydmYWlsZWRUaW1lcycKcDE0CkkwCnNTJ3dlYm1h\\nc3RlcicKcDE1ClMnd3d3QHByaW1hcnljb2xvci5jb20nCnAxNgpzLg==\\n' WHERE session_id='f3a0d6ea0bba2650e1c200dda0089d73b0feea18'