[squid-users] Squid Cache 6.9 on Ubuntu 22.04.3 LTS. Not caching large files to disk.

[PinPin Poola]

I have moved on a pace since my first message yesterday - thank you all who helped. I can now happily download files from clients on my isolated network, through my new proxy. #fanfare!!!!

However, I would really like to cache any file over 1 GB in size to disk, as the same file could get downloaded 100's of time a day by many different clients.  The cache can purge/age out after a week or so, or when getting close to the 150 GB limit.

I have configured cache_dir as below, but when I download a large 2 GB ISO file, I do not see it being cached within the /var/spool/squid directory structure and a subsequent download of the same file is no faster; so it is coming from Internet source.

My full /etc/squid/squid.conf file looks like this:

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
http_access deny !Safe_ports
http_access deny CONNECT !SSL_ports
http_access allow localhost manager
http_access deny manager
http_access allow localhost
http_access allow localnet
http_access deny to_localhost
http_access deny to_linklocal
include /etc/squid/conf.d/*.conf
http_access deny all
http_port 3128
coredump_dir /var/spool/squid
refresh_pattern ^ftp:           1440    20%     10080
refresh_pattern -i (/cgi-bin/|\?) 0     0%      0
refresh_pattern .               0       20%     4320
shutdown_lifetime 10 seconds
maximum_object_size 35 GB
cache_dir aufs /var/spool/squid 150000 16 256 min-size=1073741824
cache_mem 256 MB
maximum_object_size_in_memory 512 KB
cache_replacement_policy heap LFUDA
range_offset_limit -1
quick_abort_min -1 KB


I have plenty of disk space on my root partition:

Filesystem                         Size  Used Avail Use% Mounted on
tmpfs                              2.4G  1.2M  2.4G   1% /run
/dev/mapper/ubuntu--vg-ubuntu--lv  364G  8.3G  341G   3% /
tmpfs                               12G   12K   12G   1% /dev/shm
tmpfs                              5.0M     0  5.0M   0% /run/lock
/dev/sda2                          974M  252M  656M  28% /boot
tmpfs                              2.4G  4.0K  2.4G   1% /run/user/1000


I would really appreciate any pointers on what I am doing wrong?

This is a test setup for now; so if there are security/best practice concerns about my config, I would like to be aware; but I need to get it working for now.

Many Thanks
Pin


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