Hi I have squid 3.5 running on amazon linux and it works fine for the most part but sometime I see the logs of my clients from webapp saying that connection timeout etc. Upon checking the cache logs, I see these statements.
2022/01/23 03:10:01| Set Current Directory to /var/spool/squid 2022/01/23 03:10:01| storeDirWriteCleanLogs: Starting... 2022/01/23 03:10:01| Finished. Wrote 0 entries. 2022/01/23 03:10:01| Took 0.00 seconds ( 0.00 entries/sec). 2022/01/23 03:10:01| logfileRotate: daemon:/var/log/squid/access.log 2022/01/23 03:10:01| logfileRotate: daemon:/var/log/squid/access.log 2022/01/23 10:45:52| Error negotiating SSL connection on FD 170: (104) Connection reset by peer 2022/01/23 12:14:07| Error negotiating SSL on FD 139: error:00000000:lib(0):func(0):reason(0) (5/-1/104) 2022/01/23 12:14:07| Error negotiating SSL connection on FD 409: (104) Connection reset by peer 2022/01/25 01:12:04| Error negotiating SSL connection on FD 24: (104) Connection reset by peer I am not sure what is causing it, is it because squid is running out of gas? my instance has 16gb of Ram and 4VCPU. I am using SSL BUMP to use squid as a transparent proxy within AWS Vpc. Below is the config file --------------ConfigFile----------------------------------------- visible_hostname squid # # Recommended minimum configuration: # # 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 SSL_ports port 443 acl Safe_ports port 80 # http ###acl Safe_ports port 21 # ftp testing after blocking itp 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: # # 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 #http_access allow CONNECT SSL_ports # Only allow cachemgr access from localhost http_access allow localhost manager http_access deny manager # 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 # # 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 # And finally deny all other access to this proxy # Squid normally listens to port 3128 #http_port 3128 http_port 3129 intercept https_port 3130 cert=/etc/squid/ssl/squid.pem ssl-bump intercept http_access allow SSL_ports #-- this allows every https website acl step1 at_step SslBump1 acl step2 at_step SslBump2 acl step3 at_step SslBump3 ssl_bump peek step1 all # Deny requests to proxy instance metadata acl instance_metadata dst 169.254.169.254 http_access deny instance_metadata # Filter HTTP Only requests based on the whitelist #acl allowed_http_only dstdomain .veevasourcedev.com .google.com .pypi.org . youtube.com #acl allowed_http_only dstdomain .amazonaws.com #acl allowed_http_only dstdomain .veevanetwork.com .veevacrm.com . veevacrmdi.com .veeva.com .veevavault.com .vaultdev.com .veevacrmqa.com #acl allowed_http_only dstdomain .documentforce.com .sforce.com .force.com .forceusercontent.com .force-user-content.com .lightning.com .salesforce.com .salesforceliveagent.com .salesforce-communities.com . salesforce-experience.com .salesforce-hub.com .salesforce-scrt.com . salesforce-sites.com .site.com .sfdcopens.com .sfdc.sh .trailblazer.me . trailhead.com .visualforce.com # Filter HTTPS requests based on the whitelist acl allowed_https_sites ssl::server_name .pypi.org .pythonhosted.org . tfhub.dev .gstatic.com .googleapis.com acl allowed_https_sites ssl::server_name .amazonaws.com acl allowed_https_sites ssl::server_name .documentforce.com .sforce.com . force.com .forceusercontent.com .force-user-content.com .lightning.com . salesforce.com .salesforceliveagent.com .salesforce-communities.com . salesforce-experience.com .salesforce-hub.com .salesforce-scrt.com . salesforce-sites.com .site.com .sfdcopens.com .sfdc.sh .trailblazer.me . trailhead.com .visualforce.com ssl_bump peek step2 allowed_https_sites ssl_bump splice step3 allowed_https_sites ssl_bump terminate step2 all connect_timeout 60 minute read_timeout 60 minute write_timeout 60 minute request_timeout 60 minute ## http filtering ### #http_access allow localnet allowed_http_only #http_access allow localhost allowed_http_only http_access allow localnet allowed_https_sites http_access allow localhost allowed_https_sites # And finally deny all other access to this proxy http_access deny all # Uncomment and adjust the following to add a disk cache directory. #cache_dir ufs /var/spool/squid 100 16 256 # Leave coredumps in the first cache dir 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 ------------------------------------------------------------------------------------ Will appreciate any help, been struggling with it for last week. it is hard to reproduce and happens randomly and re-running the failed job goes through to success at times. thanks
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