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Proxy/no proxy GET results differ

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Hello. 

When running the following GET commands from a shell(same results from browsers), the results are different, with the error occurring when squid(Squid Cache: Version 3.0.STABLE13) is in the data path. Any help is appreciated. Thank you in advance.


Examples and packet capture data is below:


The following are the results WITHOUT squid in the data path:

root@host ~# GET "http://mirrors.rpmfusion.org/mirrorlist?repo=free-fedora-updates-released-9&arch=i386";

# repo = free-fedora-updates-released-9 arch = i386 country = US
http://astromirror.uchicago.edu/rpmfusion/free/fedora/updates/9/i386
http://mirror.liberty.edu/pub/rpmfusion/free/fedora/updates/9/i386
http://mirror.web-ster.com/rpmfusion/free/fedora/updates/9/i386
http://mirrors.cat.pdx.edu/rpmfusion/free/fedora/updates/9/i386
http://mirrors.tummy.com/mirrors/rpmfusion.org/free/fedora/updates/9/i386



and, the following result is from using squid in the data path:

root@host ~# GET -p http://192.168.0.22:3128 "http://mirrors.rpmfusion.org/mirrorlist?repo=free-fedora-updates-released-9&arch=i386";
# Server Error



PACKET CAPTURE DATA:
===================
1. This is the result without using Squid proxy. Traffic is captured from the host using this configuration:

Data path: Host -> Juniper Netscreen firewall -> Router -> Internet


GET /mirrorlist?repo=free-fedora-updates-released-9&arch=i386 HTTP/1.1
TE: deflate,gzip;q=0.3
Connection: TE, close
Host: mirrors.rpmfusion.org
User-Agent: lwp-request/2.07

HTTP/1.1 200 OK
Date: Fri, 24 Apr 2009 20:53:22 GMT
Server: Apache/2.2.11 (Fedora)
Content-Length: 474
cache-control: no-cache
Connection: close
Content-Type: text/plain

# repo = free-fedora-updates-released-9 arch = i386 country = US 
http://astromirror.uchicago.edu/rpmfusion/free/fedora/updates/9/i386
http://mirror.liberty.edu/pub/rpmfusion/free/fedora/updates/9/i386
http://mirror.web-ster.com/rpmfusion/free/fedora/updates/9/i386
http://mirrors.cat.pdx.edu/rpmfusion/free/fedora/updates/9/i386
http://lordmorgul.net/pub/fedora/rpmfusion/free/fedora/updates/9/i386
http://mirrors.tummy.com/mirrors/rpmfusion.org/free/fedora/updates/9/i386




2. This is the result using Squid proxy. Traffic captured from the external interface of the proxy:

Data path: Host -> Squid proxy -> Juniper Netscreen firewall -> Router -> Internet


GET /mirrorlist?repo=free-fedora-updates-released-9&arch=i386 HTTP/1.0
Host: mirrors.rpmfusion.org
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.9) Gecko/2009040821 Firefox/3.0.9 (.NET CLR 3.5.30729)
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-us,en;q=0.5
Accept-Encoding: gzip,deflate
Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7
Keep-Alive: 300
Via: 1.0 la-squid.twistbox.com (squid)
X-Forwarded-For: unknown
Cache-Control: max-age=259200
Connection: keep-alive

HTTP/1.1 200 OK
Date: Fri, 24 Apr 2009 20:54:51 GMT
Server: Apache/2.2.9 (Fedora)
Content-Length: 35
content-encoding: gzip
cache-control: no-cache
Connection: close
Content-Type: text/plain; charset=UTF-8

.....'.I..SV.N-*K-Rp-*./....$}N....



CONFIGURATION:
=============
Squid Cache: Version 3.0.STABLE13

configure options:  '--build=i386-redhat-linux-gnu' '--host=i386-redhat-linux-gn
u' '--target=i386-redhat-linux-gnu' '--program-prefix=' '--prefix=/usr' '--exec-
prefix=/usr' '--bindir=/usr/bin' '--sbindir=/usr/sbin' '--sysconfdir=/etc' '--in
cludedir=/usr/include' '--libdir=/usr/lib' '--libexecdir=/usr/libexec' '--shared
statedir=/usr/com' '--mandir=/usr/share/man' '--infodir=/usr/share/info' '--exec
_prefix=/usr' '--bindir=/usr/sbin' '--libexecdir=/usr/lib/squid' '--localstatedi
r=/var' '--datadir=/usr/share' '--sysconfdir=/etc/squid' '--disable-dependency-t
racking' '--enable-arp-acl' '--enable-auth=basic,digest,ntlm' '--enable-basic-au
th-helpers=LDAP,MSNT,NCSA,PAM,SMB,YP,getpwnam,multi-domain-NTLM,SASL' '--enable-
cache-digests' '--enable-cachemgr-hostname=localhost' '--enable-delay-pools' '--
enable-digest-auth-helpers=password' '--enable-epoll' '--enable-external-acl-hel
pers=ip_user,ldap_group,unix_group,wbinfo_group' '--enable-icap-client' '--enabl
e-ident-lookups' '--with-large-files' '--enable-linux-netfilter' '--enable-ntlm-
auth-helpers=SMB,fakeauth' '--enable-referer-log' '--enable-removal-policies=hea
p,lru' '--enable-snmp' '--enable-ssl' '--enable-storeio=aufs,diskd,null,ufs' '--
enable-useragent-log' '--enable-wccpv2' '--with-aio' '--with-default-user=squid'
 '--with-filedescriptors=16384' '--with-dl' '--with-openssl=/usr/kerberos' '--wi
th-pthreads' 'build_alias=i386-redhat-linux-gnu' 'host_alias=i386-redhat-linux-g
nu' 'target_alias=i386-redhat-linux-gnu' 'CFLAGS=-fPIE -Os -g -pipe -fsigned-cha
r -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --pa
ram=ssp-buffer-size=4 -m32 -march=i386 -mtune=generic -fasynchronous-unwind-tabl
es' 'LDFLAGS=-pie' 'CXXFLAGS=-fPIE -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -f
exceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i386 -mtune=g
eneric -fasynchronous-unwind-tables' 'FFLAGS=-O2 -g -pipe -Wall -Wp,-D_FORTIFY_S
OURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m32 -march=i38
6 -mtune=generic -fasynchronous-unwind-tables'







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