Apache-strange phenomenon: the PHP website has been visiting the home page with an error of HTTP408

Strange phenomenon 1) every time you read Apache access logs, there are always many websites with 408 errors. htaccess configuration and sequence {code ...} apache access log {code ...} strange problem {code ...} strange phenomenon

1) every time you read Apache access logs, there are always many 408 errors.

Website. htaccess configuration and Sequence

# RewriteCond % {HTTP_HOST} ^ myhost.cn [NC] RewriteRule ^ (. *) $ http://www.myhost.cn/#1 [L, R = 301] # RewriteCond % {HTTP_HOST} has been set for non-3www redirection in DNSPOD }! ^ (Mywww | localhost | 192.168.) [NC] RewriteCond % {HTTP_HOST }! (My. (cn | loc | test) $ [NC] RewriteRule ^ (. *) $ http://www.myhost.cn/#1 [L, R = 301] RewriteCond % {REQUEST_FILENAME }! -F RewriteCond % {REQUEST_FILENAME }! -D RewriteCond % {REQUEST_FILENAME }! (Xml | html | php) $ RewriteCond % {REQUEST_URI }! \/$ RewriteRule ^ (. *) $/$1/[L, R = 301]

Apache access log

2014-12-23 15:44:46 119.130.186.24 - myhost.cn- - 80 "-" 408 0 0 "from:-"2014-12-23 15:44:46 119.130.186.24 - myhost.cn- - 80 "-" 408 0 0 "from:-"2014-12-23 15:44:51 119.130.186.24 - myhost.cn- - 80 "-" 408 0 0 "from:-"2014-12-23 15:44:51 119.130.186.24 - myhost.cn- - 80 "-" 408 0 0 "from:-"2014-12-23 15:44:51 119.130.186.24 - myhost.cn- - 80 "-" 408 0 0 "from:-"2014-12-23 15:44:51 119.130.186.24 - myhost.cn- - 80 "-" 408 0 0 "from:-"2014-12-23 15:44:51 119.130.186.24 - myhost.cn- - 80 "-" 408 0 0 "from:-"

Strange Problem

I don't know how these 408 accesses are generated. There are no access routes and no browser information, that is, 408. There are at least dozens of visits every day.

Reply content: Strange phenomenon

1) every time you read Apache access logs, there are always many 408 errors.

Website. htaccess configuration and Sequence

# RewriteCond % {HTTP_HOST} ^ myhost.cn [NC] RewriteRule ^ (. *) $ http://www.myhost.cn/#1 [L, R = 301] # RewriteCond % {HTTP_HOST} has been set for non-3www redirection in DNSPOD }! ^ (Mywww | localhost | 192.168.) [NC] RewriteCond % {HTTP_HOST }! (My. (cn | loc | test) $ [NC] RewriteRule ^ (. *) $ http://www.myhost.cn/#1 [L, R = 301] RewriteCond % {REQUEST_FILENAME }! -F RewriteCond % {REQUEST_FILENAME }! -D RewriteCond % {REQUEST_FILENAME }! (Xml | html | php) $ RewriteCond % {REQUEST_URI }! \/$ RewriteRule ^ (. *) $/$1/[L, R = 301]

Apache access log

2014-12-23 15:44:46 119.130.186.24 - myhost.cn- - 80 "-" 408 0 0 "from:-"2014-12-23 15:44:46 119.130.186.24 - myhost.cn- - 80 "-" 408 0 0 "from:-"2014-12-23 15:44:51 119.130.186.24 - myhost.cn- - 80 "-" 408 0 0 "from:-"2014-12-23 15:44:51 119.130.186.24 - myhost.cn- - 80 "-" 408 0 0 "from:-"2014-12-23 15:44:51 119.130.186.24 - myhost.cn- - 80 "-" 408 0 0 "from:-"2014-12-23 15:44:51 119.130.186.24 - myhost.cn- - 80 "-" 408 0 0 "from:-"2014-12-23 15:44:51 119.130.186.24 - myhost.cn- - 80 "-" 408 0 0 "from:-"

Strange Problem

I don't know how these 408 accesses are generated. There are no access routes and no browser information, that is, 408. There are at least dozens of visits every day.

408 Request Timeout

I have mentioned it on Wikipedia. This information indicates that someone is sending a request to your server at a slow speed. It may be:

1. Manually input data
2. The user's network is slow.
3. The user wants to perform DoS attacks in this way
4. User program error

"From:-" does not know what the field is. Probably UserAgent?