Fixed: How To Fix Unknown SSL Certificate Error 20 Squid
If you are facing ssl Unknown Certificate Error 20 Squid, this guide should help.
Stop wasting time with computer errors.
[squid-users] Squid version 3.5.20 Ideas
Hello everyone,
I’ve integrated RHEL version 3.5.20 into Squid 7 and additionally generated self-signed CA certificates. My users are complaining about certificate errors. Looking at the at.log cache, I saw many error messages similar to the ones below. Below is my squid.conf file. All troubleshooting ideas.
acl localnet src 172.16.0.0/16
acl backoffice_users src 10.136.0.0/13
acl hcity_backoffice_users src 10.142.0.0/15
acl register_users src 10.128.0.0/13 10.134.0.0/15< br>acl partycity url_regex partycity
acl SSL_ports port 443
acl Safe_ports city 80 number http
#acl Safe_ports port 21 ftp number
acl Safe_ports port number 443 https
#acl Safe_ports port seventy # gopher
# acl Safe_ports vent out 210#wais
#acl Safe_ports port 1025-65535#unregistered ports
#acl Safe_ports port 280 http-mgmt number
#acl Safe_ports port 488#gss-http
#acl Safe_ports plugin 591 # filemaker
#acl Safe_ports port 777 multiling http
method acl CONNECT CONNECT
#acl allow_sites {dst|dstdomain|dstdom_regex|url_regex) “/path/to/file”
acl backoffice_allowed_sites url_regex ” /etc/squid/backoffice_allowed_sites”
acl hcity_backoffice_allowed_sites url_regex “/etc/squid/backoffice_allowed_sites”
acl backoffice_blocked_sites url_regex “/etc/squid/backoffice_blocklist”
acl hcity_backoffice_blocked_sites url”regx acl hcity_backoffoffed_sites”
acl hcity_register_allowed_sites url_regex “/et c/squid/hcity_register_allowed_sites”
allow http_access localnet register_allowed_sites
http_access to go without food backoffice_users backoffice_blocked_sites
deny http_access hcity_backoffice_users backoffice_blocked_sites
http_access guide backoffice_users backoffice_allowed_sites
allow http_access hcity_backoffice_users backoffice_allowed_sites
http_access< Deny all
/p>
# Deny CONNECT disallowing secure non-SSL ports
#http_access CONNECT to heist !SSL_ports
Allow http_access CONNECT SSL_ports
# We strongly recommend that you always leave the following comments uncommented to avoid innocent people< br> # protect web plans running on a proxy server by thinking that the only
# who can access services on “localhost” is a reasonable local user
http_access deny to_localhost
Is there an SSL issue with squid?
Okay, another SSL is available from Squid. This looks like an example that Squid doesn’t like something about your current Bonjour server. Does not depend on the browser. Website prosper.com See attachment. The TLS connection works directly in Firefox, so the website usually works. They have an EV certificate through an intermediary, but there shouldn’t be a problem.
# An example of a standard to allow access from your nearby networks.
# Configure localnet in the ACL section to specify your (internal) IP networks
# from which browsing should be allowed
#http_access allow localnet
allow http_access on localhost
#And hopefully deny further access to this type of proxy
http_access all
# deny squid usually focuses on a port3128
http_port 3128 ssl-bump
key=/etc/squid/pctysquid2sslcerts/pctysquid2prod.pkey
cert=/etc/squid/pctysquid2sslcerts/pctysquid2prod. crt
generate-host-certificates=on dynamic_cert_mem_cache_size=4MB
How to configure squid to use OpenSSL?
This SSL context is configured to receive various sslproxy_* directives (or cache_peer SSL* options) in squid.conf. OpenSSL quickly downloads and stores (in the context of SSL) the certificates and CRLs needed to verify the actual server certificates received from Squid. One CRL can take several MB.
# Uncomment and switch the following to add the drive to a specific cache directory.
#cache_dir ufs /cache/squid 10,000,256
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#16 Add one of your refresh_pattern controls above.
refresh_pattern ^ftp: 1440 20% 10080
refresh_pattern ^gopher: 1440 0% 1440
refresh_pattern -i (/cgi-bin/ | ?) 6 0% 0
refresh_pattern . ! 0 20% 4320
18.07.2017 16:05:34 child1| Failed to setup SSL connection on FD 689: error: 14094416: SSL routines: SSL3_READ_BYTES: SSLV3 warning certificate unknown (1/0)
2017/07/18 16:05:34 kid1| Failed to negotiate SSL connection with FD 1114: error: 14094416: SSL routines: SSL3_READ_BYTES: SSLV3 alert certificate unknown (1/0)
18/07/2017 16:05:37 kid1| FD SSL connection reduction error 146: error: 14094416: SSL procedures: SSL3_READ_BYTES: SSLV3 warning certificate unknown (1/0)
18.07.2017 16:05:41 kid1| Could not fully negotiate SSL connection on FD 252: error: 14094416: SSL routines: SSL3_READ_BYTES: unknown SSLV3 alert entry (1/0)
2017/07/18 16:05:41 kid1| Failed to set up SSL connection on FD 36: error: 14094416: SSL procedures: SSL3_READ_BYTES: warning certificateSSLV3 permissions unknown (1/0)
Report about Cherukuri, Naresh
Hello everyone!
I installed Squid 3.5.20 series on RHEL 7 and created self-signed CA certificates. My users are complaining about certificate errors.
When I look at the cache.log, I see different error messages like below.
The following is my own squid.conf file. Any ideas how this will fix the following errors.
max_filedesc 4096
visible_hostname pctysqd2prod
logfile_rotate 10
access_log stdio:/var/log/squid/access.log squid
acl localnet src 172.16. 0.0/16
acl backoffice_users src 10.136.0.0/13
acl hcity_backoffice_users src 10.142. 0.0/15
acl register_users src 10.128.0.0/13
acl hcity_register_users src 10.134.0.0/15
acl partycity url_regex partycity
acl SSL_ports port 443
acl Safe_ports port 80 http number
#acl Safe_ports port 21 ftp number
acl Safe_ports port 443# https
#acl Safe_ports port 75# gopher
#acl Safe_ports city 210 wais number
#acl Safe_ports port 1025-65535 # No ports published
#acl Safe_ports port number 280 http-mgmt
How does squid HTTPS inspection work with SSL bump?
Using SSL Bump, Squid HTTPS Proxy can additionally decrypt, log access.log requests transmitted over the HTTPS protocol. This allows all user requests to be logged in the edit. Squid HTTPS Proxy: Prerequisites For HTTPS inspection to work, you may need to create a new root cause certificate:
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