Squid Transparent HTTPS Proxy not starting

Martin Dallinger

6/9/23, 1:00 PM

My goal is to transparently intercept HTTP and HTTPS requests by using custom certificates and the following configuration:

acl clients src 192.168.160.0/24

http_access allow localhost
http_access allow clients
http_access deny all

http_port 0.0.0.0:3128 intercept
https_port 0.0.0.0:3129 intercept ssl-bump cert=/etc/squid/ssl_cert/myCA.pem generate-host-certificates=on dynamic_cert_mem_cache_size=10MB

sslcrtd_program /usr/lib/squid/security_file_certgen -s /var/lib/ssl_db -M 10MB
acl step1 at_step SslBump1
#ssl_bump peek step1
#ssl_bump bump all

ssl_bump server-first all

sslproxy_cert_error allow all   # It would also allow SSL connections which might be unsecure.
# only wait 5 seconds to terminate active connections
shutdown_lifetime 1 second

However, my squid server-unit won't start because of the following (very weird and unrelated seeming) error.

Feb 09 12:49:31 ubuntu-server-vm systemd[1]: Failed to start Squid Web Proxy Server.
Feb 09 12:49:31 ubuntu-server-vm squid[211266]: storeDirWriteCleanLogs: Starting...
Feb 09 12:49:31 ubuntu-server-vm squid[211266]:   Finished.  Wrote 0 entries.
Feb 09 12:49:31 ubuntu-server-vm squid[211266]:   Took 0.00 seconds (  0.00 entries/sec).
Feb 09 12:49:31 ubuntu-server-vm squid[211266]: FATAL: mimeLoadIcon: cannot parse internal URL: http://ubuntu-server-vm:0/squid-internal-static/icons/silk/image.png

Notice: ubuntu-server-vm is the name of the host

0 + 0

proxy

squid

21.04

guiverc

6/9/23, 9:17 PM

Ubuntu 21.04 (along with all flavors) is *End-of-Life* and thus unsupported on this site (https://askubuntu.com/help/on-topic), and many other Ubuntu sites, unless your question is specific to moving to a supported release of Ubuntu. https://fridge.ubuntu.com/2022/01/21/ubuntu-21-04-hirsute-hippo-end-of-life-reached-on-january-20-2022/ https://help.ubuntu.com/community/EOLUpgrades

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Squid Transparent **HTTPS** Proxy not starting

TH: Squid Transparent **HTTPS** พร็อกซีไม่เริ่มทำงาน

RO: Squid Transparent **HTTPS** Proxy-ul nu pornește

RU: Прозрачный **HTTPS** прокси-сервер Squid не запускается

VI: Mực trong suốt **HTTPS** Proxy không bắt đầu

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