Nice articles on TCP

TCP KeepAlive - http://www.tcpipguide.com/free/t_TCPConnectionManagementandProblemHandlingtheConnec-3.htm

http://tldp.org/HOWTO/TCP-Keepalive-HOWTO/usingkeepalive.html

Check if

s3cmd stupidity

Lots of stupidities in s3cmd, like the following:

If you miss the trailing slash in the directory names, s3cmd will ignore --skip-existing and will also not compare files using MD5 :( Here's the command that works:


$ s3cmd sync -v --delete-removed --skip-existing --rexclude=.* --rinclude .*localhost_access_log.2012-0[6-9].* s3://brp-logs/selfserve/ logs/

Reference: Solution 38 by William Denniss