Pi-Hole/docs
1
0
Fork 0
mirror of https://github.com/pi-hole/docs.git synced 2025-12-20 03:08:45 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #1270 from pi-hole/RTMIN

Browse Source 
Add note about pihole-FTL sigrtmin
This commit is contained in:
yubiuser
2025-11-26 19:24:33 +01:00
committed by GitHub
parent 78b3d4babf 42aa869f22
commit fd94b1ad8a
1 changed files with 12 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

13
docs/ftldns/signals.md
View File

@@ -33,7 +33,18 @@ When FTL receives a `SIGHUP`, it clears the entire DNS cache, and then
While `SIGHUP` updates/flushes almost everything, such a massive operation is often not necessary. Hence, we added several small real-time signals available for fine-grained control of what FTL does. When you see `SIGHUP` as a "big gun", the real-time signals are rather the "scalpel" to serve rather specific needs. While `SIGHUP` updates/flushes almost everything, such a massive operation is often not necessary. Hence, we added several small real-time signals available for fine-grained control of what FTL does. When you see `SIGHUP` as a "big gun", the real-time signals are rather the "scalpel" to serve rather specific needs.
Real-time signals are not guaranteed to have the same number on all operating systems as the value of the constant `SIGRTMIN` may vary. For the signals described below, we recommend using the exact signal number described in the parentheses, e.g., real-time signal 0 (35) can be sent like: <!-- markdownlint-disable code-block-style -->
!!! warning "Real-time signals vary"
Real-time signals are not guaranteed to have the same number on all operating systems as the value of the constant `SIGRTMIN` may vary.
You can check the value on your system with
```bash
pihole-FTL sigrtmin
```
If the output differs on your system, you need to adapt the numerical values in the remainder of this page.
<!-- markdownlint-enable code-block-style -->
For the signals described below, we recommend using the exact signal number described in the parentheses, e.g., real-time signal 0 (assuming `RTMIN=35`) can be sent like:
```bash ```bash
sudo pkill -SIG35 pihole-FTL sudo pkill -SIG35 pihole-FTL