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-orange?style=flat)-green?style=flat)
<hr>
- [apt-proxy-detect](#apt-proxy-detect)
- [Why this is needed?](#why-this-is-needed)
- [How does it look?](#how-does-it-look)
- [How to install?](#how-to-install)
- [Via deb-build and deb installation.](#via-deb-build-and-deb-installation)
- [How does it work?](#how-does-it-work)
- [Caching found proxies.](#caching-found-proxies)
- [Debugging](#debugging)
<hr>
# apt-proxy-detect
Auto detection of apt proxies in the LAN, caching and checking status of it.
In one sentence, set or let it find your proxies from work, school or from at home,
it does not matter, it takes the working ones or none (direct connect), where ever you are.
apt-proxy-detect can be used as on clients to detect apt-cacher-ng or squid-deb-proxy in your network.
# Why this is needed?
Spending 2023 time on this topic sound/reads quite strange but up to now
i struggle with some problems within the solutions i found so far.
Issues:
* No reliable detect proxies via mDns. (Timeouts, not found)
* No caching of the found proxies.
* No check if the found proxy works for the requested target.
* No longer active maintained (deprecated warnings all over the place)
What do you get?
- [X] branch v1.0.0 (released)
- [X] Proxy detection via
- avahi
- set defaults
- [X] caching of URL specific working proxy (or none if none works)
- [X] caching over reboot if possible
- [X] allow mixture of allowed and non allowed urls (no need for direct declaration)
- [X] branch v2.0.0 (WIP):
- [X] Feedback on current connection config (working proxy, blocked urls, direct connects)
# How does it look?
Example output:
```
dev@dev:~$ apt-proxy-detect.sh
usage: apt-proxy-detect.sh <defaults|set-default|url for proxy>
defaults ... list default proxies
set-default <proxy1>,<proxy2> ... set default proxies
url for proxy ... this is the url a proxy is tested for
```
or with setting default proxies:
```
dev@dev:~$ apt-proxy-detect.sh set-default https://192.168.0.2:8093,https://192.168.0.3:4544,http://192.168.0.27:8000
defining default proxies...
proxy: https://192.168.0.2:8093
proxy: https://192.168.0.3:4544
proxy: http://192.168.0.27:8000
saved.
```
or show default proxies:
```
dev@dev:~$ apt-proxy-detect.sh defaults
proxy: https://192.168.0.2:8093
proxy: https://192.168.0.3:4544
proxy: http://192.168.0.27:8000
```
or with specific url for checking (failing+avahi detection):
```
dev@dev:~$ apt-proxy-detect.sh github.xyz
[ AVAHI][ -]: Announced proxy found PROXY[Squid deb proxy on squid-deb-proxy@http://192.168.0.68:8000]
[ BLOCKED][ -]: PROXY[http://192.168.0.68:8000] URL[github.xyz]
[ AVAHI][ -]: Announced proxy found PROXY[apt-cacher-ng proxy on squid-deb-proxy@http://192.168.0.68:3142]
[ BLOCKED][ -]: PROXY[http://192.168.0.68:3142] URL[github.xyz]
[ DIRECT][ -]: URL[github.xyz]
```
or within apt context:
```
dev@dev:~$ sudo apt update
[ AVAHI][ -]: Announced proxy found PROXY[Squid deb proxy on squid-deb-proxy@http://192.168.0.68:8000]
[ BLOCKED][ -]: PROXY[http://192.168.0.68:8000] URL[https://packages.microsoft.com]
[ AVAHI][ -]: Announced proxy found PROXY[apt-cacher-ng proxy on squid-deb-proxy@http://192.168.0.68:3142]
[ BLOCKED][ -]: PROXY[http://192.168.0.68:3142] URL[https://packages.microsoft.com]
[ DIRECT][ -]: URL[https://packages.microsoft.com]
[ BLOCKED][ -]: PROXY[http://192.168.0.68:3142] URL[http://download.proxmox.com]
[ VIA-PROXY][ -]: PROXY[http://192.168.0.68:8000] URL[http://download.proxmox.com]
[ BLOCKED][ -]: PROXY[http://192.168.0.68:3142] URL[http://local-repo.fritz.box]
[ BLOCKED][ -]: PROXY[http://192.168.0.68:8000] URL[http://local-repo.fritz.box]
[ DIRECT][ -]: URL[http://local-repo.fritz.box]
[ BLOCKED][ -]: PROXY[http://192.168.0.68:3142] URL[https://dl.google.com]
[ VIA-PROXY][ -]: PROXY[http://192.168.0.68:8000] URL[https://dl.google.com]
[ BLOCKED][ -]: PROXY[http://192.168.0.68:3142] URL[http://security.debian.org]
[ VIA-PROXY][ -]: PROXY[http://192.168.0.68:8000] URL[http://security.debian.org]
[ BLOCKED][ -]: PROXY[http://192.168.0.68:3142] URL[http://deb.debian.org]
[ VIA-PROXY][ -]: PROXY[http://192.168.0.68:8000] URL[http://deb.debian.org]
Hit:1 http://local-repo.fritz.box/local-repo trunk InRelease
Hit:2 http://deb.debian.org/debian bookworm InRelease
Hit:3 http://security.debian.org/debian-security bookworm-security InRelease
Hit:4 http://download.proxmox.com/debian/pve bookworm InRelease
Hit:5 http://deb.debian.org/debian bookworm-updates InRelease
Hit:6 https://packages.microsoft.com/repos/code stable InRelease
Hit:7 https://dl.google.com/linux/chrome/deb stable InRelease
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
All packages are up to date.
```
second run (cached)
```
dev@dev:~$ sudo apt update
[ VIA-PROXY][ -]: PROXY[http://192.168.0.68:8000] URL[https://packages.microsoft.com]
[ VIA-PROXY][ -]: PROXY[http://192.168.0.68:8000] URL[http://download.proxmox.com]
[ DIRECT][ -]: URL[http://local-repo.fritz.box]
[ VIA-PROXY][ -]: PROXY[http://192.168.0.68:8000] URL[https://dl.google.com]
[ VIA-PROXY][ -]: PROXY[http://192.168.0.68:8000] URL[http://security.debian.org]
[ VIA-PROXY][ -]: PROXY[http://192.168.0.68:8000] URL[http://deb.debian.org]
Hit:1 http://local-repo.fritz.box/local-repo trunk InRelease
Hit:2 http://deb.debian.org/debian bookworm InRelease
Hit:3 http://security.debian.org/debian-security bookworm-security InRelease
Hit:4 http://download.proxmox.com/debian/pve bookworm InRelease
Hit:5 http://deb.debian.org/debian bookworm-updates InRelease
Hit:6 https://packages.microsoft.com/repos/code stable InRelease
Hit:7 https://dl.google.com/linux/chrome/deb stable InRelease
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
All packages are up to date.
```
# How to install?
## Via deb-build and deb installation.
So the quickest way is:
```
curl -s https://raw.githubusercontent.com/hastmu/apt-proxy-detect/refs/heads/@branch@/install.deb.sh | sudo BRANCH=@branch@ bash
```
looks like
```
dev@dev~#> curl -s https://raw.githubusercontent.com/hastmu/apt-proxy-detect/refs/heads/@branch@/install.deb.sh | sudo BRANCH=@branch@ bash
- BRANCH [@branch@]
- downloading ... ok.
dpkg-deb: building package 'apt-proxy-detect' in 'apt-proxy-detect_1.0.0_1730626377.deb'.
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Note, selecting 'apt-proxy-detect' instead of '/root/apt-proxy-detect_1.0.0_1730626377.deb'
The following packages will be upgraded:
apt-proxy-detect
1 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
Need to get 0 B/3604 B of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 /root/apt-proxy-detect_1.0.0_1730626377.deb apt-proxy-detect all 1.0.0-release-v1.0.0-1730626377 [3604 B]
apt-listchanges: Reading changelogs...
(Reading database ... 22366 files and directories currently installed.)
Preparing to unpack .../apt-proxy-detect_1.0.0_1730626377.deb ...
Unpacking apt-proxy-detect (1.0.0-release-v1.0.0-1730626377) over (1.0.0-main-1729256401) ...
Setting up apt-proxy-detect (1.0.0-release-v1.0.0-1730626377) ...
N: Download is performed unsandboxed as root as file '/root/apt-proxy-detect_1.0.0_1730626377.deb' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)
removed '/root/apt-proxy-detect_1.0.0_1730626377.deb'
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name Version Architecture Description
+++-================-===============================-============-=================================
ii apt-proxy-detect 1.0.0-release-v1.0.0-1730626377 all apt proxy detection
dev@dev~#>
```
# How does it work?
The apt.conf.d entry makes apt aware of the tool which is then call during "apt update",
for some reason most of the other tools are not aware that you get the target URL as
parameter for this call.
This URL is the proxy check URL to confirm that the found or cached proxy is working with
this dedicated URL as some proxies may have white/black lists or just not got configured
right or outdated for the new stuff to be checked out.
In case a proxy is not serving the URL it is drop for this dedicated URL.
Latest version also cache the none-proxy state for 60 seconds, accepting the fact
that there is currently no proxy around which can serve the request.
The found (via avahi-browse _apt_proxy._tcp) proxies are cached in case this has the
wrong owner it is ignored and a waring is issued.
Thats it. Enjoy.
# Caching found proxies.
Latest version include the capability to cache the found proxies persistent over reboot.
Default locations per user in this order (in case this is not writable fall back to the next):
- _apt: /var/lib/apt/lists/auxfiles/
- *: $HOME/.config/
- *: /tmp/
# Debugging
In case of issues you can set "DEBUG_APT_PROXY_DETECT" to get all details, like e.g.:
```
export DEBUG_APT_PROXY_DETECT=1
sudo apt update
```
looks like (first run, with comments)
```
dev@dev:~$ export DEBUG_APT_PROXY_DETECT=1
dev@dev:~$ sudo apt update
# INFO-TAG MS : MESSAGE
[ INFO][ 2]: ===--- apt-proxy-detect ---===
[ TEST-URL][ 18]: URL: http://packages.microsoft.com/repos/code/dists/stable/InRelease
[ HASH][ 42]: HASH: c0b917f192fa7cccb3f536f2c01b824d of (http://packages.microsoft.com)
# no proxy known so search one...
[ AVAHI][ 52]: get cache entries for _apt_proxy._tcp
[ CHECK][ 110]: Checking found proxy (http://192.168.0.27:8000) with testurl (http://packages.microsoft.com/repos/code/dists/stable/InRelease)
[ CHECK-PROXY][ 150]: Proxy (http://192.168.0.27:8000) works with testurl (http://packages.microsoft.com/repos/code/dists/stable/InRelease).
# register working proxy
[ ADD][ 161]: add proxy to working proxy list.
# first proxy does work for url
Service[OK][Squid deb proxy on squid-deb-proxy]@http://192.168.0.27:8000
[ CHECK][ 209]: Checking found proxy (http://192.168.0.27:3142) with testurl (http://packages.microsoft.com/repos/code/dists/stable/InRelease)
[ CHECK-PROXY][ 220]: Proxy (http://192.168.0.27:3142) failed with testurl (http://packages.microsoft.com/repos/code/dists/stable/InRelease)
# second proxy does not work for the url
Service[ER][apt-cacher-ng proxy on squid-deb-proxy]@http://192.168.0.27:3142
[ PROXY][ 223]: return :http://192.168.0.27:8000:
[ CACHE][ 231]: Store (http://192.168.0.27:8000) in cache file (/var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt)
[ CACHE][ 235]: Update cachefile.
[ INFO][ 1]: ===--- apt-proxy-detect ---===
[ TEST-URL][ 18]: URL: http://download.proxmox.com/debian/pve/dists/bookworm/InRelease
[ HASH][ 34]: HASH: 17b43db99b56eb6355d41861f4f304d0 of (http://download.proxmox.com)
[ CACHE][ 39]: using stored under: /var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt
# check if the once working proxy if fine
[ CHECK][ 44]: once working proxy: http://192.168.0.27:8000 for http://download.proxmox.com/debian/pve/dists/bookworm/InRelease
[ CHECK-PROXY][ 70]: Proxy (http://192.168.0.27:8000) works with testurl (http://download.proxmox.com/debian/pve/dists/bookworm/InRelease).
# it is so no need to search again.
[ PROXY][ 72]: return :http://192.168.0.27:8000:
[ CACHE][ 75]: Store (http://192.168.0.27:8000) in cache file (/var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt)
[ CACHE][ 77]: Update cachefile.
[ INFO][ 1]: ===--- apt-proxy-detect ---===
[ TEST-URL][ 16]: URL: http://local-repo.fritz.box/local-repo/dists/trunk/InRelease
[ HASH][ 24]: HASH: 2bfbb1335aaf9d333a5c9498226eb208 of (http://local-repo.fritz.box)
[ CACHE][ 29]: using stored under: /var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt
[ CHECK][ 31]: once working proxy: http://192.168.0.27:8000 for http://local-repo.fritz.box/local-repo/dists/trunk/InRelease
# once working proxy failed
[ CHECK-PROXY][ 41]: Proxy (http://192.168.0.27:8000) failed with testurl (http://local-repo.fritz.box/local-repo/dists/trunk/InRelease)
# search again
[ AVAHI][ 46]: get cache entries for _apt_proxy._tcp
[ CHECK][ 91]: Checking found proxy (http://192.168.0.27:8000) with testurl (http://local-repo.fritz.box/local-repo/dists/trunk/InRelease)
[ CHECK-PROXY][ 101]: Proxy (http://192.168.0.27:8000) failed with testurl (http://local-repo.fritz.box/local-repo/dists/trunk/InRelease)
Service[ER][Squid deb proxy on squid-deb-proxy]@http://192.168.0.27:8000
[ CHECK][ 124]: Checking found proxy (http://192.168.0.27:3142) with testurl (http://local-repo.fritz.box/local-repo/dists/trunk/InRelease)
[ CHECK-PROXY][ 134]: Proxy (http://192.168.0.27:3142) failed with testurl (http://local-repo.fritz.box/local-repo/dists/trunk/InRelease)
Service[ER][apt-cacher-ng proxy on squid-deb-proxy]@http://192.168.0.27:3142
# none found (as local repos are not allowed on the proxies)
[ PROXY][ 149]: return ::
[ CACHE][ 152]: Store (NONE) in cache file (/var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt)
[ CACHE][ 154]: Update cachefile.
[ INFO][ 2]: ===--- apt-proxy-detect ---===
[ TEST-URL][ 26]: URL: http://security.debian.org/debian-security/dists/bookworm-security/InRelease
[ HASH][ 41]: HASH: 3b68f7b6590a2da8625ff71f01d38ffb of (http://security.debian.org)
[ CACHE][ 47]: using stored under: /var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt
[ CHECK][ 50]: once working proxy: http://192.168.0.27:8000 for http://security.debian.org/debian-security/dists/bookworm-security/InRelease
[ CHECK-PROXY][ 61]: Proxy (http://192.168.0.27:8000) works with testurl (http://security.debian.org/debian-security/dists/bookworm-security/InRelease).
[ PROXY][ 64]: return :http://192.168.0.27:8000:
[ CACHE][ 66]: Store (http://192.168.0.27:8000) in cache file (/var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt)
[ CACHE][ 70]: Update cachefile.
[ INFO][ 2]: ===--- apt-proxy-detect ---===
[ TEST-URL][ 19]: URL: http://deb.debian.org/debian/dists/bookworm/InRelease
[ HASH][ 27]: HASH: efbfa0e2acaaa513c457b6698de83118 of (http://deb.debian.org)
[ CACHE][ 31]: using stored under: /var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt
[ CHECK][ 34]: once working proxy: http://192.168.0.27:8000 for http://deb.debian.org/debian/dists/bookworm/InRelease
[ CHECK-PROXY][ 45]: Proxy (http://192.168.0.27:8000) works with testurl (http://deb.debian.org/debian/dists/bookworm/InRelease).
[ PROXY][ 48]: return :http://192.168.0.27:8000:
[ CACHE][ 51]: Store (http://192.168.0.27:8000) in cache file (/var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt)
[ CACHE][ 53]: Update cachefile.
Hit:1 http://local-repo.fritz.box/local-repo trunk InRelease
Hit:2 http://deb.debian.org/debian bookworm InRelease
Hit:3 http://security.debian.org/debian-security bookworm-security InRelease
Hit:4 http://download.proxmox.com/debian/pve bookworm InRelease
Hit:5 http://deb.debian.org/debian bookworm-updates InRelease
Hit:6 http://packages.microsoft.com/repos/code stable InRelease
Hit:7 https://dl.google.com/linux/chrome/deb stable InRelease
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
22 packages can be upgraded. Run 'apt list --upgradable' to see them.
```
looks like (second run)
```
dev@dev:~$ export DEBUG_APT_PROXY_DETECT=1
dev@dev:~$ sudo apt update
# INFO-TAG MS : MESSAGE
[ INFO][ 1]: ===--- apt-proxy-detect ---===
[ TEST-URL][ 13]: URL: http://packages.microsoft.com/repos/code/dists/stable/InRelease
[ HASH][ 31]: HASH: c0b917f192fa7cccb3f536f2c01b824d of (http://packages.microsoft.com)
[ CACHE][ 37]: using stored under: /var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt
[ CACHE-AGE][ 41]: age: 57 sec
[ CHECK-PROXY][ 129]: Proxy (http://192.168.0.27:8000) works with testurl (http://packages.microsoft.com/repos/code/dists/stable/InRelease).
[ WORKS][ 132]: give back cached proxy
[ PROXY][ 134]: return http://192.168.0.27:8000
[ INFO][ 2]: ===--- apt-proxy-detect ---===
[ TEST-URL][ 17]: URL: http://download.proxmox.com/debian/pve/dists/bookworm/InRelease
[ HASH][ 25]: HASH: 17b43db99b56eb6355d41861f4f304d0 of (http://download.proxmox.com)
[ CACHE][ 30]: using stored under: /var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt
[ CACHE-AGE][ 32]: age: 57 sec
[ CHECK-PROXY][ 243]: Proxy (http://192.168.0.27:8000) works with testurl (http://download.proxmox.com/debian/pve/dists/bookworm/InRelease).
[ WORKS][ 246]: give back cached proxy
[ PROXY][ 249]: return http://192.168.0.27:8000
[ INFO][ 2]: ===--- apt-proxy-detect ---===
[ TEST-URL][ 16]: URL: http://local-repo.fritz.box/local-repo/dists/trunk/InRelease
[ HASH][ 24]: HASH: 2bfbb1335aaf9d333a5c9498226eb208 of (http://local-repo.fritz.box)
[ CACHE][ 37]: using stored under: /var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt
[ CACHE-AGE][ 39]: age: 58 sec
[ CHECK-PROXY][ 41]: NONE-cached
[ WORKS][ 43]: give back cached proxy
[ PROXY][ 48]: return NONE
[ INFO][ 2]: ===--- apt-proxy-detect ---===
[ TEST-URL][ 17]: URL: http://security.debian.org/debian-security/dists/bookworm-security/InRelease
[ HASH][ 25]: HASH: 3b68f7b6590a2da8625ff71f01d38ffb of (http://security.debian.org)
[ CACHE][ 30]: using stored under: /var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt
[ CACHE-AGE][ 32]: age: 58 sec
[ CHECK-PROXY][ 43]: Proxy (http://192.168.0.27:8000) works with testurl (http://security.debian.org/debian-security/dists/bookworm-security/InRelease).
[ WORKS][ 45]: give back cached proxy
[ PROXY][ 48]: return http://192.168.0.27:8000
[ INFO][ 2]: ===--- apt-proxy-detect ---===
[ TEST-URL][ 19]: URL: http://deb.debian.org/debian/dists/bookworm/InRelease
[ HASH][ 28]: HASH: efbfa0e2acaaa513c457b6698de83118 of (http://deb.debian.org)
[ CACHE][ 36]: using stored under: /var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt
[ CACHE-AGE][ 46]: age: 58 sec
[ CHECK-PROXY][ 99]: Proxy (http://192.168.0.27:8000) works with testurl (http://deb.debian.org/debian/dists/bookworm/InRelease).
[ WORKS][ 102]: give back cached proxy
[ PROXY][ 104]: return http://192.168.0.27:8000
Hit:1 http://local-repo.fritz.box/local-repo trunk InRelease
Hit:2 http://deb.debian.org/debian bookworm InRelease
Hit:3 http://security.debian.org/debian-security bookworm-security InRelease
Hit:4 http://download.proxmox.com/debian/pve bookworm InRelease
Hit:5 http://deb.debian.org/debian bookworm-updates InRelease
Hit:6 http://packages.microsoft.com/repos/code stable InRelease
Hit:7 https://dl.google.com/linux/chrome/deb stable InRelease
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
22 packages can be upgraded. Run 'apt list --upgradable' to see them.
```
looks like (with default proxies run)
```
dev@dev:~$ export DEBUG_APT_PROXY_DETECT=1
dev@dev:~$ sudo apt update
# INFO-TAG MS : MESSAGE
[ INFO][ 2]: ===--- apt-proxy-detect ---===
[ DEFAULTS][ 5]: loaded from /usr/local/etc/apt-proxy-detect.bash
[ TEST-URL][ 23]: URL: http://packages.microsoft.com/repos/code/dists/stable/InRelease
[ HASH][ 42]: HASH: c0b917f192fa7cccb3f536f2c01b824d of (http://packages.microsoft.com)
# first time - but introducing default proxies as once working
[ CHECK][ 48]: once working proxy: https://192.168.0.2:8093 for http://packages.microsoft.com/repos/code/dists/stable/InRelease
[ CHECK-PROXY][ 60]: Proxy (https://192.168.0.2:8093) failed with testurl (http://packages.microsoft.com/repos/code/dists/stable/InRelease)
[ CHECK][ 66]: once working proxy: https://192.168.0.3:4544 for http://packages.microsoft.com/repos/code/dists/stable/InRelease
[ CHECK-PROXY][ 80]: Proxy (https://192.168.0.3:4544) failed with testurl (http://packages.microsoft.com/repos/code/dists/stable/InRelease)
[ CHECK][ 83]: once working proxy: http://192.168.0.27:8000 for http://packages.microsoft.com/repos/code/dists/stable/InRelease
[ CHECK-PROXY][ 124]: Proxy (http://192.168.0.27:8000) works with testurl (http://packages.microsoft.com/repos/code/dists/stable/InRelease).
# and one works.
[ PROXY][ 126]: return :http://192.168.0.27:8000:
[ CACHE][ 129]: Store (http://192.168.0.27:8000) in cache file (/var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt)
[ CACHE][ 137]: Update cachefile.
[ INFO][ 3]: ===--- apt-proxy-detect ---===
[ DEFAULTS][ 6]: loaded from /usr/local/etc/apt-proxy-detect.bash
[ TEST-URL][ 22]: URL: http://download.proxmox.com/debian/pve/dists/bookworm/InRelease
[ HASH][ 33]: HASH: 17b43db99b56eb6355d41861f4f304d0 of (http://download.proxmox.com)
[ CACHE][ 39]: using stored under: /var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt
[ CHECK][ 43]: once working proxy: https://192.168.0.2:8093 for http://download.proxmox.com/debian/pve/dists/bookworm/InRelease
[ CHECK-PROXY][ 54]: Proxy (https://192.168.0.2:8093) failed with testurl (http://download.proxmox.com/debian/pve/dists/bookworm/InRelease)
[ CHECK][ 57]: once working proxy: https://192.168.0.3:4544 for http://download.proxmox.com/debian/pve/dists/bookworm/InRelease
[ CHECK-PROXY][ 69]: Proxy (https://192.168.0.3:4544) failed with testurl (http://download.proxmox.com/debian/pve/dists/bookworm/InRelease)
[ CHECK][ 73]: once working proxy: http://192.168.0.27:8000 for http://download.proxmox.com/debian/pve/dists/bookworm/InRelease
[ CHECK-PROXY][ 104]: Proxy (http://192.168.0.27:8000) works with testurl (http://download.proxmox.com/debian/pve/dists/bookworm/InRelease).
[ PROXY][ 107]: return :http://192.168.0.27:8000:
[ CACHE][ 111]: Store (http://192.168.0.27:8000) in cache file (/var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt)
[ CACHE][ 114]: Update cachefile.
[ INFO][ 2]: ===--- apt-proxy-detect ---===
[ DEFAULTS][ 5]: loaded from /usr/local/etc/apt-proxy-detect.bash
[ TEST-URL][ 29]: URL: http://local-repo.fritz.box/local-repo/dists/trunk/InRelease
[ HASH][ 78]: HASH: 2bfbb1335aaf9d333a5c9498226eb208 of (http://local-repo.fritz.box)
[ CACHE][ 85]: using stored under: /var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt
# first time - but introducing default proxies as once working
[ CHECK][ 89]: once working proxy: https://192.168.0.2:8093 for http://local-repo.fritz.box/local-repo/dists/trunk/InRelease
[ CHECK-PROXY][ 101]: Proxy (https://192.168.0.2:8093) failed with testurl (http://local-repo.fritz.box/local-repo/dists/trunk/InRelease)
[ CHECK][ 105]: once working proxy: https://192.168.0.3:4544 for http://local-repo.fritz.box/local-repo/dists/trunk/InRelease
[ CHECK-PROXY][ 116]: Proxy (https://192.168.0.3:4544) failed with testurl (http://local-repo.fritz.box/local-repo/dists/trunk/InRelease)
[ CHECK][ 119]: once working proxy: http://192.168.0.27:8000 for http://local-repo.fritz.box/local-repo/dists/trunk/InRelease
[ CHECK-PROXY][ 141]: Proxy (http://192.168.0.27:8000) failed with testurl (http://local-repo.fritz.box/local-repo/dists/trunk/InRelease)
# non is working as this is a local repo
# search via AVAHI.
[ AVAHI][ 147]: get cache entries for _apt_proxy._tcp
[ CHECK][ 195]: Checking found proxy (http://192.168.0.27:8000) with testurl (http://local-repo.fritz.box/local-repo/dists/trunk/InRelease)
[ CHECK-PROXY][ 207]: Proxy (http://192.168.0.27:8000) failed with testurl (http://local-repo.fritz.box/local-repo/dists/trunk/InRelease)
Service[ER][Squid deb proxy on squid-deb-proxy]@http://192.168.0.27:8000
[ CHECK][ 237]: Checking found proxy (http://192.168.0.27:3142) with testurl (http://local-repo.fritz.box/local-repo/dists/trunk/InRelease)
[ CHECK-PROXY][ 249]: Proxy (http://192.168.0.27:3142) failed with testurl (http://local-repo.fritz.box/local-repo/dists/trunk/InRelease)
Service[ER][apt-cacher-ng proxy on squid-deb-proxy]@http://192.168.0.27:3142
# also the AVAHI found ones do not work -> so none (direct connect)
[ PROXY][ 252]: return ::
[ CACHE][ 259]: Store (NONE) in cache file (/var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt)
[ CACHE][ 262]: Update cachefile.
[ INFO][ 2]: ===--- apt-proxy-detect ---===
[ DEFAULTS][ 6]: loaded from /usr/local/etc/apt-proxy-detect.bash
[ TEST-URL][ 22]: URL: http://security.debian.org/debian-security/dists/bookworm-security/InRelease
[ HASH][ 32]: HASH: 3b68f7b6590a2da8625ff71f01d38ffb of (http://security.debian.org)
[ CACHE][ 37]: using stored under: /var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt
[ CHECK][ 40]: once working proxy: https://192.168.0.2:8093 for http://security.debian.org/debian-security/dists/bookworm-security/InRelease
[ CHECK-PROXY][ 50]: Proxy (https://192.168.0.2:8093) failed with testurl (http://security.debian.org/debian-security/dists/bookworm-security/InRelease)
[ CHECK][ 53]: once working proxy: https://192.168.0.3:4544 for http://security.debian.org/debian-security/dists/bookworm-security/InRelease
[ CHECK-PROXY][ 65]: Proxy (https://192.168.0.3:4544) failed with testurl (http://security.debian.org/debian-security/dists/bookworm-security/InRelease)
[ CHECK][ 68]: once working proxy: http://192.168.0.27:8000 for http://security.debian.org/debian-security/dists/bookworm-security/InRelease
[ CHECK-PROXY][ 96]: Proxy (http://192.168.0.27:8000) works with testurl (http://security.debian.org/debian-security/dists/bookworm-security/InRelease).
[ PROXY][ 99]: return :http://192.168.0.27:8000:
[ CACHE][ 102]: Store (http://192.168.0.27:8000) in cache file (/var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt)
[ CACHE][ 105]: Update cachefile.
[ INFO][ 2]: ===--- apt-proxy-detect ---===
[ DEFAULTS][ 4]: loaded from /usr/local/etc/apt-proxy-detect.bash
[ TEST-URL][ 21]: URL: http://deb.debian.org/debian/dists/bookworm/InRelease
[ HASH][ 31]: HASH: efbfa0e2acaaa513c457b6698de83118 of (http://deb.debian.org)
[ CACHE][ 37]: using stored under: /var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt
[ CHECK][ 39]: once working proxy: https://192.168.0.2:8093 for http://deb.debian.org/debian/dists/bookworm/InRelease
[ CHECK-PROXY][ 50]: Proxy (https://192.168.0.2:8093) failed with testurl (http://deb.debian.org/debian/dists/bookworm/InRelease)
[ CHECK][ 52]: once working proxy: https://192.168.0.3:4544 for http://deb.debian.org/debian/dists/bookworm/InRelease
[ CHECK-PROXY][ 63]: Proxy (https://192.168.0.3:4544) failed with testurl (http://deb.debian.org/debian/dists/bookworm/InRelease)
[ CHECK][ 66]: once working proxy: http://192.168.0.27:8000 for http://deb.debian.org/debian/dists/bookworm/InRelease
[ CHECK-PROXY][ 94]: Proxy (http://192.168.0.27:8000) works with testurl (http://deb.debian.org/debian/dists/bookworm/InRelease).
[ PROXY][ 97]: return :http://192.168.0.27:8000:
[ CACHE][ 101]: Store (http://192.168.0.27:8000) in cache file (/var/lib/apt/lists/auxfiles/.apt-proxy-detect._apt)
[ CACHE][ 105]: Update cachefile.
Hit:1 http://local-repo.fritz.box/local-repo trunk InRelease
Hit:2 http://deb.debian.org/debian bookworm InRelease
Hit:3 http://security.debian.org/debian-security bookworm-security InRelease
Hit:4 http://download.proxmox.com/debian/pve bookworm InRelease
Hit:5 http://deb.debian.org/debian bookworm-updates InRelease
Hit:6 http://packages.microsoft.com/repos/code stable InRelease
Hit:7 https://dl.google.com/linux/chrome/deb stable InRelease
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
22 packages can be upgraded. Run 'apt list --upgradable' to see them.
```