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Squid 4.13 transparent proxy without certificate spoofing, ssl_error_rx_record_too_long, what_am_I_doing_wrong?
Squid in transparent proxy mode without certificate substitution via https normally opens gosuslugi.ru and heaps of other sites, but classmates, VKontakte, YouTube and a bunch of others give a hack with an error in FF: ssl_error_rx_record_too_long. I have no problems with http. There are no such problems on squid 3.5.8 prepared according to the recipe on Habré, I try to use modern Debian11 and there is version 4.13-10 in turnips, but I rebuilt it with options for https. For those who have the opportunity to help me, I'll post a simplified config with a minimum of filtering.
workers 2
dns_nameservers 127.0.0.1
acl localnet src 10.15.0.0/24
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 deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localhost manager
http_access deny manager
http_access allow localnet
http_access allow localhost
http_access deny all
http_port 3128 intercept
http_port 3130
https_port 3129 intercept ssl-bump connection-auth=off cert=/etc/squid/squidca_dron.pem
cache deny all
always_direct allow all
sslproxy_cert_error allow all
#укажем правило со списком блокируемых ресурсов (в файле домены вида .domain.com)
acl blocked ssl::server_name "/etc/squid/blocked_https.txt"
acl step1 at_step SslBump1
ssl_bump peek step1
#терминируем соединение, если клиент заходит на запрещенный ресурс
ssl_bump terminate blocked
ssl_bump splice all
#openssl req -new -newkey rsa:2048 -days 3650 -nodes -x509 -keyout squidca_dron.pem -out squidca_dron.pem
sslcrtd_program /usr/lib/squid/security_file_certgen -s /var/lib/squid/ssl_db -M 20MB
coredump_dir /var/spool/squid
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_dir aufs /var/spool/squid 20000 49 256
maximum_object_size 61440 KB
minimum_object_size 3 KB
cache_swap_low 90
cache_swap_high 95
maximum_object_size_in_memory 512 KB
memory_replacement_policy lru
logfile_rotate 4
dns_v4_first on
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