[squid-users] wiki.squid-cache.org is broken

[Yuri Voinov]

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Check it.

This is ISP. They are hands-curved.

01.09.15 21:47, Amos Jeffries пишет:
> On 2/09/2015 1:06 a.m., Yuri Voinov wrote:
>>
>> Found it. My ISP can't pass ICMPv4/v6 to wiki.squid-cache.org . Here is
>> problem.
>>
>> # ping wiki.squid-cache.org
>> no answer from wiki.squid-cache.org
>>
>
> Perhapse that is involved. But I think you have mistaken what I wrote.
>
> Ping just *uses* ICMP importantly it uses ICMP "echo" messages. Which
> are very different beasts to the control ICMP messages. Blocking those
> does not break much except tools like ping itself.
>
>
> Try these three tests from your Squid machine:
>
> ## telnet 127.0.0.1 65532
> Trying 127.0.0.1...
> telnet: Unable to connect to remote host: Connection refused
>
> ## telnet -4 wiki.squid-cache.org 65532
> Trying 77.93.254.178...
> telnet: Unable to connect to remote host: Connection refused
>
> ## telnet -6 wiki.squid-cache.org 65532
> Trying 2001:4b78:2003::1...
> telnet: Unable to connect to remote host: Network is unreachable
>
>
> They should all return the same messages as above almost faster than you
> can blink.
>
> My above were run from a v6-enabled LAN on a v4-only ISP who blocks ping
> [ICMP echo] too just like yours. The first two got to the IPv4
> server/address and got a ICMPv4 port-closed error back, the third only
> got to my LAN border router where the IPv6 stops and got the ICMPv6
> destination-unavailable back.
>
>
> You said your network is v4-only.
>  => So the first and third should both return fast and at the same
> speed. If either one takes a while your Squid machine is broken in
> regards to the relevant protocol (v4 for test 1, v6 for test 3).
>
> You said your ISP is blocking ping.
>  => The second test should still succeed if they are blocking it
> correctly. If it fails they have the broken network and maybe need
> educating about ICMP.
>
> HTH
> Amos
> _______________________________________________
> squid-users mailing list
> squid-users at lists.squid-cache.org
> http://lists.squid-cache.org/listinfo/squid-users

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