Add support for showing internal statistics

[nikeshjauhari]

Hi,

Can we have a section where we can show some internal system statistics

1) Total DNS cache consume 2) Memory in use by the process 3) Load on system 4) location of log files and other data 5) view live log 6) Block page configuration 7) Server uptime (added by @ainar-g)

Thanks, Nikesh

Relevant ideas (added by @ameshkov):

• DNS cache statistics: https://github.com/AdguardTeam/AdGuardHome/issues/1453
• RPI temperature: https://github.com/AdguardTeam/AdGuardHome/issues/2849

[RainmakerRaw]

Nice idea, and ties in with 1502 to a large degree I think. The two together become something akin to an 'expert mode', integrating both featuresets perhaps? A 'reset dns cache' would be a very welcome addition to (either of) the list as well, imho.

[Potterli20]

1453

[ameshkov]

We should consider merging it with https://github.com/AdguardTeam/AdGuardHome/issues/1453

I am not sure we'll be able to do this in v0.105, may need to reassign

[weedb0y]

I’d love this

[Aikatsui]

About Footer:- https://github.com/AdguardTeam/AdGuardHome/issues/2121#issuecomment-696099313 Another FR suitable for this page: https://github.com/AdguardTeam/AdGuardHome/issues/813#issuecomment-664046098

[Aikatsui]

One example for internal statistics page however there're other products as well https://github.com/ntop/ntopng https://www.ntop.org/products/traffic-analysis/ntop/ If you make something perfect then we dont have to submit FRs related that often.

Internal statistics homepage path: <ip address or domain>:3000/lua/system_stats.lua // @nikeshjauhari 4. location of log files and other data (not only it and it's good to display log on web interface with sort options)

System statistics charts (i guess that's bit unnecessary for internal statistics, and suitable for https://github.com/AdguardTeam/AdGuardHome/issues/750)

Past alerts and related user accounts https://github.com/AdguardTeam/AdGuardHome/issues/997 alerts as display on that screenshot

4. Periodic activities

[jvoisin]

All those information might also be useful for an attacker (uptime → see what kernel vulnerabilities are likely present, location of log files and other data → useful for LFI, Memory in use by the process → useful to see if a DoS is doable, Load on system → useful to see if doing heap feng-shui is practical, …), while providing nothing really useful to administrator, who can already log into the machine to get this data anyway.

[Aikatsui]

https://github.com/AdguardTeam/AdGuardHome/issues/3146

[yuxuan0107]

我也需要这个功能