----- Original Message -----
From: "Amos Jeffries" <squid3@xxxxxxxxxxxxx>
To: "wangwen" <wangw330@xxxxxxx>
Cc: <squid-users@xxxxxxxxxxxxxxx>
Sent: Tuesday, September 29, 2009 12:51 PM
Subject: Re: squid vport
Thanks for your help!
I think it should have been: "Host: 192.168.0.164:88" maybe something went
wrong and caused defaultsite to be used. Henrik might know.
Sorry, I made a mistake. Host is the 192.168.24.198:88.
So Squid check the URL. Finds /rdims/index.jsp.
... checks the Host: header. Finds 192.168.0.164:88, making
URL=http://192.168.0.164:88/rdims/index.jsp
... checks the Host: header port. Finds 88, making
URL=http://192.168.0.164:88/rdims/index.jsp
... has a domain '192.168.0.164', so skips defaultsite
And passes on:
GET /rdims/index.jsp HTTP/1.0
Host: 192.168.0.164:88
alter HTTP_Port as follow:
http_port 192.168.0.164:88 accel vhost defaultsite=192.168.24.198
When Clients access http://192.168.0.164:88/rdims/index.jsp
HTTP request header which Squid sent to backend server is:
GET /rdims/index.jsp HTTP/1.0
Accept: */*
Accept-Language: zh-cn
UA-CPU: x86
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1;.NETCLR
2.0.50727; InfoPath.1; .NET CLR 3.5.30729; .NET CLR 3.0.30618)
Host: 192.168.24.198
Via: 1.1 szrd.com:88 (squid/2.6.STABLE21)
X-Forwarded-For: 192.168.12.48
Cache-Control: max-age=259200
Connection: keep-alive
Now i did not use vport.
Above you said that the Squid check the URL. Finds /rdims/index.jsp.
... checks the Host: header. Finds 192.168.0.164:88, making
URL=http://192.168.0.164:88/rdims/index.jsp
In that case,the host should be 192.168.0.164:88
why Host is 192.168.24.198 isn't 192.168.0.164:88 ?
I also tested another two cases:
alter HTTP_Port as follow:
http_port 192.168.0.164:88 accel vport defaultsite=192.168.24.198
When Clients access http://192.168.0.164:88/rdims/index.jsp
HTTP request header which Squid sent to backend server is:
GET /rdims/index.jsp HTTP/1.0
Accept: */*
Accept-Language: zh-cn
UA-CPU: x86
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1;.NETCLR
2.0.50727; InfoPath.1; .NET CLR 3.5.30729; .NET CLR 3.0.30618)
Host: 192.168.24.198
Via: 1.1 szrd.com:88 (squid/2.6.STABLE21)
X-Forwarded-For: 192.168.12.48
Cache-Control: max-age=259200
Connection: keep-alive
alter HTTP_Port as follow:
http_port 192.168.0.164:88 accel vport=8088 defaultsite=192.168.24.198
When Clients access http://192.168.0.164:88/rdims/index.jsp
HTTP request header which Squid sent to backend server is:
GET /rdims/index.jsp HTTP/1.0
Accept: */*
Accept-Language: zh-cn
UA-CPU: x86
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1;.NETCLR
2.0.50727; InfoPath.1; .NET CLR 3.5.30729; .NET CLR 3.0.30618)
Host: 192.168.24.198
Via: 1.1 szrd.com:88 (squid/2.6.STABLE21)
X-Forwarded-For: 192.168.12.48
Cache-Control: max-age=259200
Connection: keep-alive
could you explain how the Host is set for me ? thank you.
Note: If Henrik corrects me on any of this believe him. I'm a little bit
fuzzy too.
On Tue, 29 Sep 2009 11:50:49 +0800, "wangwen" <wangw330@xxxxxxx> wrote:
Hi All:
The vport option Confused me for a long time.
what is the meaning of "vport" option in the "http_port"?
Can anyone give me an example to explain it, thank you.
I did a test.
The Squid.conf as follows：
http_port 192.168.0.164:88
accel defaultsite=192.168.24.198
acl all src 0.0.0.0/0.0.0.0
http_access allow all
cache_peer 192.168.24.198 parent 8088 0 no-query originserver
When Clients access http://192.168.0.164:88/rdims/index.jsp
HTTP request header which Squid sent to backend server is:
GET /rdims/index.jsp HTTP/1.0
Accept: */*
Accept-Language: zh-cn
UA-CPU: x86
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1;
.NET
CLR 2.0.50727; InfoPath.1; .NET CLR 3.5.30729; .NET CLR 3.0.30618)
Host: 192.168.24.198
Via: 1.1 szrd.com:88 (squid/2.6.STABLE21)
X-Forwarded-For: 192.168.12.48
Cache-Control: max-age=259200
Connection: keep-alive
My originserver port is 8088,Why HOST is 192.168.0.164, I think that the
HOST should be 92.168.24.198:8080.
"accel defaultsite=192.168.24.198" by itself means...
... 'accelerate' the URL.
... use 192.168.24.198 as the Host: header content if no domain name
present (in the URL).
Client sent squid:
GET /rdims/index.jsp HTTP/1.0
Host: 192.168.0.164:88
... /rdims/index.jsp contains no domain name, so the
defaultsite=192.168.24.198 set "Host: 192.168.24.198"
I alter HTTP_Port as follow:
http_port 192.168.0.164:88 accel vhost defaultsite=192.168.24.198 vport
When Clients access http://192.168.0.164:88/rdims/index.jsp
HTTP request header which Squid sent to backend server is:
GET /rdims/index.jsp HTTP/1.0
Accept: */*
Accept-Language: zh-cn
UA-CPU: x86
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1;
.NET
CLR 2.0.50727; InfoPath.1; .NET CLR 3.5.30729; .NET CLR 3.0.30618)
Host: 192.168.24.198:88
Via: 1.1 szrd.com:88 (squid/2.6.STABLE21)
X-Forwarded-For: 192.168.12.48
Cache-Control: max-age=259200
Connection: keep-alive
Now why the Host is 192.168.0.164:88?
"accel vhost defaultsite=192.168.24.198 vport" means ...
... 'accelerate' the URL.
... (vhost) use client-given Host: header when available.
... (vport) use the client-given Host: HTTP port (default the peers
listening port if none found).
... (defaultsite=) use 192.168.24.198 if neither of the above give a
usable
domain/IP.
The client sends:
Client sent squid:
GET /rdims/index.jsp HTTP/1.0
Host: 192.168.0.164:88
So Squid check the URL. Finds /rdims/index.jsp.
... checks the Host: header. Finds 192.168.0.164:88, making
URL=http://192.168.0.164:88/rdims/index.jsp
... checks the Host: header port. Finds 88, making
URL=http://192.168.0.164:88/rdims/index.jsp
... has a domain '192.168.0.164', so skips defaultsite
And passes on:
GET /rdims/index.jsp HTTP/1.0
Host: 192.168.0.164:88
I alter HTTP_Port again: http_port 192.168.0.164:88 accel vhost
defaultsite=192.168.24.198 vport=8088
When Clients access http://192.168.0.164:88/rdims/index.jsp
HTTP request header which Squid sent to backend server is:
GET /rdims/index.jsp HTTP/1.0
Accept: */*
Accept-Language: zh-cn
UA-CPU: x86
Accept-Encoding: gzip, deflate
User-Agent: Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 6.0; SLCC1;
.NET
CLR 2.0.50727; InfoPath.1; .NET CLR 3.5.30729; .NET CLR 3.0.30618)
Host: 192.168.24.198
Via: 1.1 szrd.com:88 (squid/2.6.STABLE21)
X-Forwarded-For: 192.168.12.48
Cache-Control: max-age=259200
Connection: keep-alive
Why the host is 192.168.0.164:88?
? its not.
I think that the HOST should be
92.168.24.198:8088.
"accel vhost defaultsite=192.168.24.198 vport=8080" means ...
... 'accelerate' the URL.
... (vhost) use client-given Host: header when available.
... (vport=) use the client-given Host: HTTP port (default 8088 if none
found).
... (defaultsite=) use 192.168.24.198 if neither of the above give a
usable
domain/IP.
So Squid check the URL. Finds /rdims/index.jsp.
... checks the Host: header. Finds 192.168.0.164:88, making
URL=http://192.168.0.164:88/rdims/index.jsp
... checks the Host: header port. Finds 88, making
URL=http://192.168.0.164:88/rdims/index.jsp
... has a domain '192.168.0.164', so skips defaultsite
At last the vport must be used with vhost?
I don't think so.
Amos
