Archive for March, 2011
Found a webshell in your server account? It might not be the only one
0 Comments Published March 4th, 2011 in bash, monitoring, Open Source, PHP, plugins, Security.Have you ever encounter your site have been compromised, and you found some weird file being uploaded into your hosting account? Thats what the first thing the attacker would want to do on a web attack, to upload a webshell. Webshell is some kind of web-based backdoor, usually protected by a password, and allow the [...]
lowest numbered MX record points to local host
0 Comments Published March 4th, 2011 in linux, spam fighting.I encountered a problem when exim could not receive email to a specific domain name, with an error message like below 2011-03-04 03:10:45 H=mail-gy0-f178.google.com [209.85.160.178] F= temporarily rejected RCPT : lowest numbered MX record points to local host. A simple search lead me to a forum post on WebHostingTalk, exactly the same problem like mine. [...]
