hosts file has line with unexpected content

[alexsannikov]

Hello,

I am using this repo as a source to build more "intellectual" filters lists for AdGuard Home.
I use some scripts to collapse the content and apply using regexp, as AdGuard Home supports it.

The following line which I found in "hosts" file (admalware) doesn't make sense and breaking my filters, leaving "www" only, which prohibit using any domain name starting from "www".

user@linux:/tmp $ cat hosts | grep "0.0.0.0 www "
0.0.0.0 www #.104.248.94.172
user@linux:/tmp $

[welcome[bot]]

Hello! Thank you for opening your first issue in this repo. It’s people like you who make these host files better!

[StevenBlack]

Thank you Alex @alexsannikov.

Ping Tomasz @FadeMind. These lines (lines 2028 to 2031) appear to be a problem....

[StevenBlack]

I'm wondering if we should actively filter lines like this. Thoughts?

0.0.0.0 104.248.94.172
0.0.0.0 142.93.134.136
0.0.0.0 159.65.193.7
0.0.0.0 167.99.34.247

Edit: this stackoverflow thread has an interesting and promising-looking regex.

Valid952HostnameRegex = "^(([a-zA-Z]|[a-zA-Z][a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z]|[A-Za-z][A-Za-z0-9\-]*[A-Za-z0-9])$";

[FadeMind]

Ping @azet12 @krystian3w

[krystian3w]

This is pages with fake flash player. Works on IP only.

hXXp://104[.]248[.]94.172/hello/e122xpy23v8upr2vrocw/?q=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpcCI6IjMxLjAuMTI2LjEwOCIsInJlZmVycmVyIjoiaHR0cDovL3dpc2RlbWVudGl2ZS5pbmZvL2JYM1lWWjBhUGIyY2hkMGVZZlhnUmhpaVBqVGtFbG1tY24wb2xwa3FQclRzTXQydU12endJeDJ5TnpqQVVCbUNlRG1FOUZ1R1pIVUlsSmtLUExUTU1OMk9NUHpRSVIyU05UalVVViIsInRzIjoxNTU4OTcyMjQ1LCJ1c2VyX2FnZW50IjoiTW96aWxsYS81LjAgKFdpbmRvd3MgTlQgMTAuMDsgV2luNjQ7IHg2NDsgcnY6NjcuMCkgR2Vja28vMjAxMDAxMDEgRmlyZWZveC82Ny4wIn0.7LqcBmibu_Pla0L1hb7-E-b3-R9iGs-SRr3Xp5GB8_k

this should down so I can remove 2 problematic rules.

[StevenBlack]

Thanks @krystian3w. An IP address is NOT a valid host name.

See RFC 952. The status of RFC 952 is,

This RFC is the official specification of the format of the Internet Host Table.

[krystian3w]

OK added on uBo list names "directory" used for scam and problematic websites without host name gone from KAD HOSTS.

[StevenBlack]

Thank you @krystian3w!

[StevenBlack]

This is fixed in release 2.4.12.

Thank you, everybody.

Closing.

[alexsannikov]

Sorry guys, I've opened new Issue #1006 to point to the additional IP address in another list.
I am new on GitHub and thought comments are not available if ticket is closed already.
Thanks for understanding.