[squid-users] http request header must use hostname

xxiao8 xxiao8 at fosiao.com
Mon Dec 7 00:13:28 UTC 2015


On 7/12/2015 7:38 a.m., Walter H. wrote:
 > On 06.12.2015 11:07, Yuri Voinov wrote:
 >> # Numeric IP's acl
 >> acl numeric_IPs dstdom_regex [0-9]+\.[0-9]+\.[0-9]+\.[0-9]+
 >>
 >> # Deny access to numeric IP's
 >> http_access deny CONNECT numeric_IPs
 >> deny_info TCP_RESET numeric_IPs
 >>
 > and not to forget IPv6 ...
 >
 > acl numeric_IPs_ipv4 dstdom_regex [0-9]+\.[0-9]+\.[0-9]+\.[0-9]+
 >
 > acl numeric_IPs_ipv6 dstdom_regex ([0-9A-Fa-f]+|\:)+[0-9A-Fa-f]+
 >
 > http_access deny CONNECT numeric_IPs_ipv4
 > deny_info TCP_RESET numeric_IPs_ipv4
 >
 > http_access deny CONNECT numeric_IPs_ipv6
 > deny_info TCP_RESET numeric_IPs_ipv6

OR IPv4-mapped address format,
OR that port can be included,
OR the fact that raw-IP can be used on any request..


   acl ips
^(([0-9]+\.[0-9]+\.[0-9]+\.[0-9]+)|(\[([0-9a-f]+)?:([0-9a-f:]+)?:([0-9a-f]+|[0-9\.]+)?\]))(:[0-9])?$

  http_access deny CONNECT ips
  deny_info TCP_RESET ips


Getting complicated...

So xxiao8, why does one want to censor these requests anyway?

Amos

---

Thanks for all the replies. The reason is to enforce dns-based filtering 
so you can't type in IP to bypass it easily.

xxiao



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