[dwrtss]

I want to harden my dd-wrt router a bit more. Which of the sysctls in this guide I can configure on my router too? `https://madaidans-insecurities.github.io/guides/linux-hardening.html#sysctl`

Is there any topic for hardening dd-wrt?

Like the value of `dev.tty.ldisc_autoload` in dd-wrt is set as 1. But can I set it to 0 without any issues?

What about
```
net.ipv4.tcp_sack=0
net.ipv4.tcp_dsack=0
net.ipv4.tcp_fack=0
```

dd-wrt have some of the values set on 1. Its better to change it to 0?

Which other sysctls values I can harden without issues?

[Alozaros]

Hi and welcome to the forum...always make sure when you have a question to post your,
router model and current firmware number...as this matters a lot..!

DDWRT is not like the normal linux distros, if you want to explore setting, syscrtl values or nvram settings, you can always reset, if something is not well..but, remember some values are critical for the system operation, as this Linux is very much network oriented...so, all other functions are castrated...and not present...and there is only one user...

Even on my pc Linux, if i fiddle too much with hardening settings, In order to harden it, I more like to break something...same with Firefox browser or any other hardening settings anywhere...so you are on your own...

https://github.com/torvalds/linux/blob/master/Documentation/driver-api/tty/tty_ldisc.rst