CODEWITHSUNDEEP
.htaccesshttp-status-code-404user-agentlwp-useragent
alancc
alancc

Reputation: 811

Access existing files from specifc User Agent will cause 404 error

Today I check the access log of my website, and find a very strange thing.

When user accessing the file "/downloads/files/ddbfr.exe" with user agent "LWP::Simple/6.13 libwww-perl/6.13", he will get 404 error:

108.162.215.191 - - [22/Dec/2021:12:30:35 -0800] "GET /dbf-repair/ddbfr.exe HTTP/1.1" 301 - "-" "LWP::Simple/6.13 libwww-perl/6.13"
172.70.98.107 - - [22/Dec/2021:12:30:36 -0800] "HEAD /downloads/files/ddbfr.exe HTTP/1.1" 404 - "-" "LWP::Simple/6.13 libwww-perl/6.13"
108.162.215.191 - - [22/Dec/2021:12:30:36 -0800] "GET /dbf-repair/ddbfr.exe HTTP/1.1" 301 - "-" "LWP::Simple/6.13 libwww-perl/6.13"
172.70.98.33 - - [22/Dec/2021:12:30:37 -0800] "HEAD /downloads/files/ddbfr.exe HTTP/1.1" 404 - "-" "LWP::Simple/6.13 libwww-perl/6.13"

However, when accessing the same file "/downloads/files/ddbfr.exe" with other user agent, such as FireFox, then everything will be OK:

172.70.210.253 - - [22/Dec/2021:13:10:28 -0800] "GET /downloads/files/ddbfr.exe HTTP/1.1" 200 8035760 "-" "Mozilla/5.0 (X11; Linux x86_64; en-US; rv:1.9.2.12) Gecko/20101026 Firefox/3.6.12"

It seems that my server is returned 404 for specific agent. However, I check my .htaccess file but cannot find anything like the one in 301 redirect based on user-agent. Why?

Note: There is a redirect from /dbf-repair/ddfr.exe to /downloads/files/ddbfr.exe in .htaccess.

Upvotes: 0

Views: 128

Answers (0)

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