Carsten Strotmann

@cstrotm
823 Followers
386 Following
3.5K Posts
DNS, DHCP, IPv6, Retro-Computing, Prog-Lang-Geek, Forth
TopicsDNS, IPv6, Free Software, Forth, Atari 8bit, Retro-Computing, Pen & Paper RPG
GithubHttps://github.com/cstrotm
Show threadCarsten StrotmannDec 18
@winfried @jpmens Which recursor does this? Unbound seems to do it. BIND 9 seems to align the TTLs upon recital. But is it universal?
Carsten StrotmannDec 18
JP MensDec 18
To all you DNS haters: I'm beginning to feel you
Show threadCarsten StrotmannDec 18
@miek TTL mismatch kills the redundancy. Here, after 300 seconds only the 2nd IP with TTL 86400 stays in the cache (for 86100 seconds).
Carsten StrotmannDec 18
Show threadMiek GiebenDec 18
@cstrotm version.bind. 5 CH TXT "Served by PowerDNS - https://www.powerdns.com/"
Home

Boost subscriber performance by up to 25% for less than 1% of your overall 5G network investment.

Carsten StrotmannDec 18

Strange TTL mismatch in A-record RRSet for “gmx.de” — which DNS server does allow this configuration?

dig @ns-gmx.ui-dns.de gmx.de +noall +answer
gmx.de. 86400 IN A 82.165.229.87
gmx.de. 300 IN A 82.165.229.152

Carsten StrotmannDec 16
FlohEinsteinDec 16

Ran into a problem in prod?
Just generate a fake cloudflare error page and blame it on them - gives you time to fix.

https://github.com/donlon/cloudflare-error-page

#foss #devops #cloudflare #infosec

Carsten StrotmannDec 16
@jpmens “madonctl” funkt leider auf dem Rechner nicht, das ist ein altes armv7 Netbook (kernel und gilb sind auf Stand 2008, den Userspace habe ich per pkgsrc aktualisiert) und dort gibt es keinen aktuellen Go compiler. Speicher ist auch sehr knapp, und “nanotodon” hat Sixel-Support für Grafiken und Bilder im Terminal oder im Framebuffer.
Show threadCarsten StrotmannDec 16
@feoh Yes, I know other CLI clients (like “toot”), but I wanted to test exactly this one for some reason
Carsten StrotmannDec 16
The Hacker‘s ChoiceDec 16

THC Release 💥: The world’s largest IP<>Domain database: https://ip.thc.org

All forward and reverse IPs, all CNAMES and all subdomains of every domain. For free.

Updated monthly.

Try: curl https://ip.thc.org/1.1.1.1

Raw data: https://ip.thc.org/docs/bulk-data-access

(The fine work of messede 👌)

What does everyone think? Need feedback before release tomorrow :)

Carsten StrotmannDec 16
Testing the CUI/CLI Mastodon client “nanotodon” https://github.com/taka-tuos/nanotodon. It is “underdocumented”, and I’ve tried to get a “help” output from the tool. Instead, I posted the word “help” in my timeline. So for all that are worried now: I’m fine, I just need documentation for “nanotodon” ;)