I have squid 5.3 running on amazon linux 2 and it was running fine for some weeks until it suddenly stopped working yesterday on our production server and caused outage. I have set it to auto-restart for now. But if someone could review my squid.conf file and see if there is something wrong? This is the error I saw === 2022/04/06 00:45:31| FATAL: xcalloc: Unable to allocate 1 blocks of 68431 bytes! current master transaction: master27687315 2022/04/06 00:45:31| Squid Cache (Version 5.3): Terminated abnormally. current master transaction: master27687315 === squid.conf --- [ec2-user@ip-172-24-9-143 ~]$ sudo cat /usr/local/squid/etc/squid.conf # # 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 0.0.0.1-0.255.255.255 # RFC 1122 "this" network (LAN) acl localnet src 10.0.0.0/8 # RFC 1918 local private network (LAN) acl localnet src 100.64.0.0/10 # RFC 6598 shared address space (CGN) acl localnet src 169.254.0.0/16 # RFC 3927 link-local (directly plugged) machines acl localnet src 172.16.0.0/12 # RFC 1918 local private network (LAN) acl localnet src 192.168.0.0/16 # RFC 1918 local private network (LAN) 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 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 server_idle_pconn_timeout 60 minute connect_timeout 60 minute read_timeout 60 minute write_timeout 60 minute request_timeout 60 minute # # 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 # 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 # # 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 .veevasourcedev.com . veevasource.com .google.com acl allowed_https_sites ssl::server_name .amazonaws.com # 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 https_port 3130 intercept ssl-bump cert=/usr/local/squid/ssl_cert/myCA.pem generate-host-certificates=on dynamic_cert_mem_cache_size=256MB http_access allow SSL_ports sslcrtd_program /usr/local/squid/libexec/security_file_certgen -s /usr/local/squid/var/lib/ssl_db -M 256MB #sslcrtd_children 3 startup=1 idle=1 #tls_outgoing_options options=NO_SSLv3 acl step1 at_step SslBump1 acl step2 at_step SslBump2 acl step3 at_step SslBump3 ##ssl_bump peek step1 all ssl_bump peek step1 ssl_bump peek step2 allowed_https_sites ##ssl_bump splice step3 allowed_https_sites ssl_bump splice step3 allowed_https_sites #ssl_bump bump all ssl_bump terminate step2 all #ssl_bump bump all #http_access allow allowed_https_sites http_access deny all # Uncomment and adjust the following to add a disk cache directory. #cache_dir ufs /usr/local/squid/var/cache/squid 100 16 256 # Leave coredumps in the first cache dir coredump_dir /usr/local/squid/var/cache/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 logformat custom %tg rep_time==%1tr %>a %Ss/%03>Hs %<st %[un %Sh/%<a %mt -- %ssl::bump_mode %ssl::>sni server==> %ssl::<cert_subject err=%ssl::<cert_errors %ssl::<negotiated_version %ssl::<received_supported_version %ssl::<received_hello_version %ssl::<negotiated_version access_log /usr/local/squid/var/logs/access.log custom debug_options ALL, 2, rotate=1 forwarded_for delete via off
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