LHC@home

https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/networking_guide/configuring-the-squid-caching-proxy-server

default.local for CVMFS
# Must be set: the repositories required for ATLAS/Theory
# If "CVMFS_DEFAULT_DOMAIN" is set to "cern.ch" like in /etc/cvmfs/default.d/50-cern.conf
# simple names will expand to FQRNs,
# e.g. atlas -> atlas.cern.ch
CVMFS_REPOSITORIES="atlas,atlas-condb,grid,cernvm-prod,sft,alice"

# Must be set: to ensure openhtc.io will be used
CVMFS_USE_CDN=yes

# If a local proxy <my_proxy> is available that listens at port <proxy_port>.
# Replace <my_proxy> with either:
# - the computer name of your local proxy; requires a well configured local name resolution
# - the FQDN of your local proxy; requires a well configured local name resolution
# - the IP of your local proxy
# Replace <proxy_port> with your proxy's TCP port; Squid's default would be 3128
# Pattern: CVMFS_HTTP_PROXY="http://<my_proxy>:<proxy_port>;DIRECT"
# Example: CVMFS_HTTP_PROXY="http://squid:3128;DIRECT"

# Only recommended for clusters <5 worker nodes:
# uncomment the next line if no local proxy is available.
#CVMFS_HTTP_PROXY="auto;DIRECT"
CVMFS_HTTP_PROXY="http://xxx.xxx.xxx.xxx:3128;DIRECT"

# further options
CVMFS_KCACHE_TIMEOUT=2
CVMFS_MAX_RETRIES=3
CVMFS_IPFAMILY_PREFER=4|6
CVMFS_USE_GEOAPI=yes

After Installation of squid in CentOSx, squid.conf is modified:
#
# 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 xxx.xxx.xxx.xxx # 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
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

# 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
#

# worldcommunitygrid
acl wcg_nocache dstdomain .worldcommunitygrid.org
always_direct allow wcg_nocache
cache deny wcg_nocache

# 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 xxx.xxx.xxx.xxx:3128

dns_nameservers xxx.xxx.xxx.xxx

# 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 none
#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
refresh_pattern . 0 0% 0

For me this is running in Boinc and activating PROXY with CentOS8(including Stream), CentOS7, W11pro, W10pro and W10-Workstation.

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