Hey John,
I am pretty sure it is something in the AWS Linux kernel.
In any case you should have some http_port without intercept in the config.
As an example add "http_port 127.0.0.1:13333" but I am not sure how it
was on squid 3.1.10, I know it is mandatory since for 3.4.
If you can test the same settings on an Ubuntu 14.04 server and not AWS
Linux it would help much to make sure it's either an AWS Linux specific
issue or something else.
All The Bests,
Eliezer
On 29/10/2015 00:51, John Smith wrote:
hi,
I have a working(?) squid 3.10 proxy configuration.
squid-3.1.10-29.18.amzn1.x86_64 on AWS Linux behind an AWS elastic load
balancer.
My problem is that it appears every single AWS elastic load balancer
healthcheck triggers a line like this in cache.log:
2015/10/28 22:35:10| IpIntercept.cc(137) NetfilterInterception: NF
getsockopt(SO_ORIGINAL_DST) failed on FD 14: (92) Protocol not available
I have determined that if I removed the 'intercept' option from our
http_port 3128, we no longer get the warning messages in cache.log, but
squid also no longer functions as we want it to...
How do we resolve this?'
Thanks!
My squid.conf:
#
# Recommended minimum configuration:
#
acl manager proto cache_object
acl localhost src 127.0.0.1/32 ::1
acl to_localhost dst 127.0.0.0/8 0.0.0.0/32 ::1
# Example rule allowing access from your local networks.
# Adapt to list your (internal) IP networks from where browsing
# should be allowed
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 localnet src fc00::/7 # RFC 4193 local private network range
acl localnet src fe80::/10 # RFC 4291 link-local (directly plugged)
machines
acl httpacl port 80
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
#
# Recommended minimum Access Permission configuration:
#
# Only allow cachemgr access from localhost
http_access allow manager localhost
http_access deny manager
# Deny requests to certain unsafe ports
http_access deny !Safe_ports
# Deny CONNECT to other than secure SSL ports
http_access deny CONNECT !SSL_ports
# We strongly recommend the following be uncommented to protect innocent
# web applications running on the proxy server who think the only
# one who can access services on "localhost" is a local user
#http_access deny to_localhost
#
# INSERT YOUR OWN RULE(S) HERE TO ALLOW ACCESS FROM YOUR CLIENTS
#
negative_ttl 3600 seconds
# Example rule allowing access from your local networks.
# Adapt localnet in the ACL section to list your (internal) IP networks
# from where browsing should be allowed
http_access allow localnet
http_access allow localhost
# And finally deny all other access to this proxy
http_access deny all
# Squid normally listens to port 3128
http_port 3128 intercept
# We recommend you to use at least the following line.
hierarchy_stoplist cgi-bin ?
# Uncomment and adjust the following to add a disk cache directory.
cache_dir ufs /squid1 30720 16 256
cache_dir ufs /squid2 30720 16 256
cache_mem 10 GB
access_log /logs/squid/access.log
cache_log /logs/squid/cache.log
# Leave coredumps in the first cache dir
coredump_dir /var/spool/squid
visible_hostname l1
# Add any of your own refresh_pattern entries above these.
refresh_pattern -i \.(html|htm|css|js)$ 1440 40% 259200
refresh_pattern -i \.(gif|png|jpg|jpeg|ico|otf|woff|eot|ttf|svg)$ 10080 90%
259200 override-expire ignore-no-cache ignore-no-store ignore-private
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
cache_peer l2proxy parent 80 0 no-query no-digest name=http_peer
cache_peer_access http_peer allow httpacl
cache_peer l2proxy parent 3129 0 no-query no-digest name=https_peer
cache_peer_access https_peer deny httpacl
never_direct allow all
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