Questions tagged [dns-cache]
9 questions
4
votes
2 answers
How do you see the OS DNS cache on linux?
Context
According to Cloudflare docs, the sequence of a DNS query from Chrome to the recursive resolver looks something like this:
Check browser DNS cache --miss--> Check OS DNS cache --miss--> Recursive resolver
| …
Ross Jacobs
- 189
2
votes
1 answer
How to extend the expiry time of Firefox's DNS cache
Mozilla Firefox's about:networking#dns page lists DNS cache entries. I noticed that some of those entries have low expiry times, such as 60 seconds. Is there a way to make Firefox force the minimum expiry time to be e.g. 10 minutes, so that Firefox…
Flux
- 301
2
votes
0 answers
How to fix ERR_ADDRESS_UNREACHABLE on a single network
I'm a huge fan of Anime and I do read up a lot about the stories in the wikia site. However, since the last week, it wasn't accessible to me, that too only under my home WiFi.
The URL of the site is http://naruto.wikia.com/
It do not open up…
Sri Harsha Chilakapati
- 399
- 4
- 17
1
vote
1 answer
Before VPN, banned sites won’t load in a browser tab. After connecting, the same tab still blocks them, but a new tab works. Why is that?
Hope this question well fits this forum, it is reproducible on chrome browser on both macOS 15.3.2 and Windows 10, I am using VPN based on shadowsocks.
I consistently observe this: before I connect to my VPN, I cannot access to any banned website in…
PkDrew
- 257
1
vote
0 answers
No internet connection, can't flush dns
I can't connect to the internet, I tried these commands, but none of them are working..
What's weird, is that when I wait around 10 minutes, the internet hops back, but the commands are still not working..
Commands I tried to fix this issue:
netsh…
joojn
- 11
1
vote
2 answers
How does DNS caching work for websites behind CDN?
Many websites use DNS servers from CDNs like Cloudflare that hide their origin IP with reverse proxy. how do the DNS caching servers work in these situations? because many websites can show to be using the same IP address, Cloudflare's, so I assume…
user1670677
1
vote
1 answer
How do you get the TTL of a record in the DNS cache on Linux using systemd?
I asked this question on how to see the Linux DNS cache. It looks like it's possible but it doesn't show TTL, unlike those for Firefox, Chrome, and Windows.
On windows, this looks like
PS C:\> ipconfig /displaydns
Windows IP Configuration
…
Ross Jacobs
- 189
0
votes
1 answer
memory partition for dns cache on raspberry pi
having my DNS cache configured on a raspberry pi, I was wondering if the IO from local requests could wear out the micro SD in it. In case it can, is there any way to have the cache files to be stored in a memory partition?
flpgdt
- 467
0
votes
1 answer
host process for windows cpu 40-50% when used with hosts file
I can't run dnsclient because host process for windows cpu 40-50% when
used with hosts file, my laptop works fine with an empty hosts file and
when it is disabled, but I want to run it with a hosts file that is
around 2mb, the entries are 67,000…
