[squid-users] Re: User Authentication to parent proxy question

From: Markus Moeller <huaraz_at_moeller.plus.com>
Date: Tue, 10 Aug 2010 20:09:17 +0100

I tried the following simple configuration for the child proxy:

acl all src all
acl manager proto cache_object
acl localhost src 127.0.0.1/32
acl to_localhost dst 127.0.0.0/8 0.0.0.0/32
acl localnet src 10.0.0.0/8 # RFC1918 possible internal network
acl localnet src 172.16.0.0/12 # RFC1918 possible internal network
acl localnet src 192.168.0.0/16 # RFC1918 possible internal network
acl SSL_ports port 443
acl Safe_ports port 80 # http
acl Safe_ports port 21 # ftp
acl Safe_ports port 443 # https
acl Safe_ports port 70 # gopher
acl Safe_ports port 210 # wais
acl Safe_ports port 1025-65535 # unregistered ports
acl Safe_ports port 280 # http-mgmt
acl Safe_ports port 488 # gss-http
acl Safe_ports port 591 # filemaker
acl Safe_ports port 777 # multiling http
acl CONNECT method CONNECT
http_access allow manager localhost
http_access deny manager
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localnet
http_access allow all
http_access deny all
icp_access allow localnet
icp_access deny all
http_port 3128

cache_peer parent.company.com parent 8080 0 no-digest proxy-only no-query
connection-auth=on http11 login=PASS

hierarchy_stoplist cgi-bin ?
access_log /var/log/squid/access.log squid
debug_options ALL,9
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i (/cgi-bin/|\?) 0 0% 0
refresh_pattern . 0 20% 4320
acl shoutcast rep_header X-HTTP09-First-Line ^ICY.[0-9]
upgrade_http0.9 deny shoutcast
acl apache rep_header Server ^Apache
broken_vary_encoding allow apache
cache_effective_user squid
cache_effective_group nogroup
coredump_dir /var/cache/squid

and I see the following behaviour for NTLM

Client -> child-proxy GET http://www.google.com HTTP/1.0
Child-proxy -> parent-proxy GET http://www.google.com HTTP/1.0
Parent-proxy -> child-proxy 407 Proxy-Authenticate: Negotiate ;
Proxy-Authenticate: NTLM
Child-proxy -> client 407 Proxy-Authenticate: Negotiate ; 407
Proxy-Authenticate: NTLM ; connection: close

Client -> child-proxy GET http://www.google.com HTTP/1.0 ;
Proxy-Authorization NTLMSSP_NEGOTIATE
Child-proxy -> parent-proxy GET http://www.google.com HTTP/1.0 ;
Proxy-Authorization NTLMSSP_NEGOTIATE ; Proxy-connection: keep-alive
Parent-proxy -> child-proxy 407 Proxy-Authenticate: NTLMSSP_CHALLENGE ;
Proxy-connection: keep-alive
Child-proxy -> client 407 Proxy-Authenticate: NTLMSSP_CHALLENGE ;
connection: close

Client -> child-proxy GET http://www.google.com HTTP/1.0 ;
Proxy-Authorization NTLMSSP_AUTH; Proxy-connection: keep-alive
Child-proxy -> client TCP RESET

Why does the proxy reset the connection ? I could not see any obvious in the
log (even with full debug)

Thank you
Markus

"Markus Moeller" <huaraz_at_moeller.plus.com> wrote in message
news:i2a6q1$caj$1_at_dough.gmane.org...
> Hi,
>
> If I have a parent proxy which requires NTLM or Kerberos user
> authentication can I use login=PASS to do that ?
>
> e.g.
>
> cache_peer parent.foo.net parent 3128 3130 proxy-only default
> login=PASS
>
> Is it also possible that the child does not authenticate the user but
> just hands the authentication through to the parent ?
>
> Thank you
> Markus
>
>
Received on Tue Aug 10 2010 - 19:10:18 MDT

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