[squid-users] Transparent squid configuration problem.

Thu Aug 23 13:38:27 UTC 2018

i noticed the following :    dig caa habr.com
;; ANSWER SECTION:
habr.com.               3600    IN      CAA     0 iodef "mailto:iodef at habr.com"
habr.com.               3600    IN      CAA     0 issue "comodoca.com"

So you cant bump this site, its protecting its certificates with a CAA/DANE dns record. 

Greetz, 

Louis

Van: squid-users [mailto:squid-users-bounces at lists.squid-cache.org] Namens ??????? ????????? ?????????????
Verzonden: donderdag 23 augustus 2018 15:22
Aan: squid-users at lists.squid-cache.org
Onderwerp: [squid-users] Transparent squid configuration problem.

Hi! I have some problems with configuration of squid.

What I need:

http/https transparent proxy server based on Debian Stretch with some blacklisted and whitelisted domains

I?ve used many tutorials and squid.wiki through installation process and it almost work! But I have the last problem.

When I tried to connect to some websites like a https://habr.com I have  got HTTP ERROR 503. Ive tried to find solution at forums but no one helped me. I know the answer is simple and its here but cannt find it by myself.

Here is my squid.conf, cache.log, access.log and iptables script.

Please help! J

Squid.conf:

dns_v4_first on

acl network src 10.84.0.0/16

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 blacklist dstdomain "/etc/squid/acls/social_networks.txt" # list of blocked websites here

acl CONNECT method CONNECT

http_access deny blacklist

http_access deny !Safe_ports

http_access deny CONNECT !SSL_ports

http_access allow all

http_port 3130

http_port 3128 intercept

https_port 3129 intercept ssl-bump cert=/etc/squid/ssl_cert/vproxy2.pem key=/etc/squid/ssl_cert/vproxy2.pem

#always_direct allow all

ssl_bump server-first all

#sslproxy_cert_error deny all

#sslproxy_flags DONT_VERIFY_PEER

sslcrtd_program /usr/lib/squid/ssl_crtd -s /var/lib/ssl_db -M 4MB

sslcrtd_children 8 startup=1 idle=1

coredump_dir /var/spool/squid

# Add any of your own refresh_pattern entries above these.

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

shutdown_lifetime 1 second

cache.log:

Maximum Resident Size: 123312 KB

Page faults with physical i/o: 7

2018/08/23 16:19:27 kid1| Logfile: closing log daemon:/var/log/squid/access.log

2018/08/23 16:19:27 kid1| Logfile Daemon: closing log daemon:/var/log/squid/access.log

2018/08/23 16:19:27 kid1| Open FD UNSTARTED     6 DNS Socket IPv6

2018/08/23 16:19:27 kid1| Open FD READ/WRITE    7 DNS Socket IPv4

2018/08/23 16:19:27 kid1| Open FD UNSTARTED    10 IPC UNIX STREAM Parent

2018/08/23 16:19:27 kid1| Squid Cache (Version 3.5.23): Exiting normally.

2018/08/23 16:19:32 kid1| Set Current Directory to /var/spool/squid

2018/08/23 16:19:32 kid1| Starting Squid Cache version 3.5.23 for x86_64-pc-linux-gnu...

2018/08/23 16:19:32 kid1| Service Name: squid

2018/08/23 16:19:32 kid1| Process ID 1209

2018/08/23 16:19:32 kid1| Process Roles: worker

2018/08/23 16:19:32 kid1| With 65535 file descriptors available

2018/08/23 16:19:32 kid1| Initializing IP Cache...

2018/08/23 16:19:32 kid1| DNS Socket created at [::], FD 6

2018/08/23 16:19:32 kid1| DNS Socket created at 0.0.0.0, FD 7

2018/08/23 16:19:32 kid1| Adding domain generium.corp from /etc/resolv.conf

2018/08/23 16:19:32 kid1| Adding nameserver 10.84.10.110 from /etc/resolv.conf

2018/08/23 16:19:32 kid1| Adding nameserver 10.83.10.120 from /etc/resolv.conf

2018/08/23 16:19:32 kid1| Logfile: opening log daemon:/var/log/squid/access.log

2018/08/23 16:19:32 kid1| Logfile Daemon: opening log /var/log/squid/access.log

2018/08/23 16:19:32 kid1| Local cache digest enabled; rebuild/rewrite every 3600/3600 sec

2018/08/23 16:19:32 kid1| Store logging disabled

2018/08/23 16:19:32 kid1| Swap maxSize 0 + 262144 KB, estimated 20164 objects

2018/08/23 16:19:32 kid1| Target number of buckets: 1008

2018/08/23 16:19:32 kid1| Using 8192 Store buckets

2018/08/23 16:19:32 kid1| Max Mem  size: 262144 KB

2018/08/23 16:19:32 kid1| Max Swap size: 0 KB

2018/08/23 16:19:32 kid1| Using Least Load store dir selection

2018/08/23 16:19:32 kid1| Set Current Directory to /var/spool/squid

2018/08/23 16:19:32 kid1| Finished loading MIME types and icons.

2018/08/23 16:19:32 kid1| HTCP Disabled.

2018/08/23 16:19:32 kid1| Pinger socket opened on FD 16

2018/08/23 16:19:32 kid1| Squid plugin modules loaded: 0

2018/08/23 16:19:32 kid1| Adaptation support is off.

2018/08/23 16:19:32 kid1| Accepting HTTP Socket connections at local=[::]:3130 remote=[::] FD 12 flags=9

2018/08/23 16:19:32 kid1| Accepting NAT intercepted HTTP Socket connections at local=[::]:3128 remote=[::] FD 13 flags=41

2018/08/23 16:19:32 kid1| Accepting NAT intercepted SSL bumped HTTPS Socket connections at local=[::]:3129 remote=[::] FD 14 flags=41

2018/08/23 16:19:32| pinger: Initialising ICMP pinger ...

2018/08/23 16:19:32| pinger: ICMP socket opened.

2018/08/23 16:19:32| pinger: ICMPv6 socket opened

2018/08/23 16:19:32| Pinger exiting.

2018/08/23 16:19:33 kid1| storeLateRelease: released 0 objects

Accesslog:

1535030545.214      0 10.84.77.52 TAG_NONE/503 382 GET https://habr.com/ - ORIGINAL_DST/178.248.237.68 text/html

1535030545.442    608 10.84.77.52 TAG_NONE/200 0 CONNECT 52.4.157.193:443 - ORIGINAL_DST/52.4.157.193 -

1535030545.442    617 10.84.77.52 TAG_NONE/200 0 CONNECT 52.204.140.44:443 - ORIGINAL_DST/52.204.140.44 -

1535030545.717    422 10.84.77.52 TAG_NONE/200 0 CONNECT 52.204.140.44:443 - ORIGINAL_DST/52.204.140.44 -

1535030545.879     36 10.84.77.52 TCP_MISS/204 415 POST https://www.google.ru/gen_204? - ORIGINAL_DST/64.233.162.94 text/html

1535030546.522     77 10.84.77.52 TAG_NONE/200 0 CONNECT 178.248.237.68:443 - ORIGINAL_DST/178.248.237.68 -

1535030546.623     95 10.84.77.52 TAG_NONE/200 0 CONNECT 178.248.237.68:443 - ORIGINAL_DST/178.248.237.68 -

1535030546.625      0 10.84.77.52 TAG_NONE/503 382 GET https://habr.com/ - ORIGINAL_DST/178.248.237.68 text/html

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