How to change the maximum number of connections?

[fkl7834456]

Hi !
In the luci web interface, the maximum number of connections is 8192.
Tell me how to change to 16384?

[frollic]

nm, wrong thing to change.

[fkl7834456]

I don't understand what is written there.
Previously, there was a number of connections 16384 and after updating the firmware was 8192
How to change for 16384 I don't know

[frollic]

nm, wrong thing to change.

[fkl7834456]

In general, nothing is clear. How to change via PuTTY?
uci - what should I enter next?

[frollic]

nm, wrong thing to change.

[pavelgl]

If that's what you mean

then

echo "net.netfilter.nf_conntrack_max = 16384" >> /etc/sysctl.d/11-nf-conntrack.conf
sysctl -p /etc/sysctl.d/11-nf-conntrack.conf

[frollic]

I assumed he meant uhttpd, not the whole box, but I might have misunderstood ...

[pavelgl]

We're both guessing here ...

[frollic]

tbh, your guess is better than mine

[lleachii]

Correct way to increase max active connections?

22.03-SNAPSHOT was defaulting to about 14k max active connections, I want to increase this number to 32k as I have more than enough RAM, but while researching the topic I found the information around sysctl to be confusing, OpenWRT does not follow the official guidance. I've ran this script: cat << "EOF" >> /etc/sysctl.conf net.netfilter.nf_conntrack_buckets=32768 #was 14000 net.netfilter.nf_conntrack_expect_max=256 #was 232 net.netfilter.nf_conntrack_max=32768 #was 14000 EOF /etc/init.d/sysct…

Max active connections (nf_conntrack_max) artificially fixed to 16384?

I have a PC Engines apu4d4 which has 4 GB of RAM. When setting up OpenWrt I noticed LuCI shows an active connections meter with a max of 16384. The documentation here leads me to believe that this number is smaller than it should be. So, I looked at the OpenWrt source and it appears that nf_conntrack_max is hard coded to 16384 here. The only reason that I could find was an issue from 7 years ago when someone complained that default was too small and the associated commit where it was initially…

How to modify the max Active Connections on ver22.03.2

root@OpenWrt:~# cat /etc/sysctl.d/11-nf-conntrack.conf # Do not edit, changes to this file will be lost on upgrades # /etc/sysctl.conf can be used to customize sysctl settings net.netfilter.nf_conntrack_acct=1 net.netfilter.nf_conntrack_checksum=0 net.netfilter.nf_conntrack_tcp_timeout_established=7440 net.netfilter.nf_conntrack_udp_timeout=60 net.netfilter.nf_conntrack_udp_timeout_stream=180 There is no related configuration item in the file /etc/sysctl.d/11-nf-conntrack.conf.

[fkl7834456]

Thank you very much !!!!!
Can you tell me how to change the timeout
net.netfilter.nf_conntrack_tcp_timeout_established = 7440 default, change to 180 as 7440 is too much

[frollic]

the same way ?

[lleachii]

@fkl7834456

Can you tell me how to change the timeout

The sysctrl parameters is self-documenting that is how you change it:

Change 7440 to 180.

[fkl7834456]

It's a pity of course, in any case, it's already better than it was

[lleachii]

@fkl7834456

It's a pity of course

What do you mean?

@fkl7834456

it's already better than it was

You never described a problem. You may wish to note it so it can help others that this fixed it. Also you may want to move the thread to the Installing and Using OpenWrt section.

@fkl7834456

the maximum number of connections is 8192.

What device and version of OpenWrt?

This leads me to believe it may be ending it's life in the supported firmwares.

Glad you fixed your issue.

[fkl7834456]

How did I not describe the problem? Everything is written in detail there and pavelgl helps me with the solution of the issue for the second time without any questions.

[frollic]

@fkl7834456

Everything is written in detail there and pavelgl helps me

He guessed, just as I did, although my guess was wrong.
So no, your problem description wasn't clear at all.

How to change the maximum number of connections?

We're both guessing here ...

[lleachii]

@frollic

He guessed

No, I knew what he was refrencing.

I don't kno why the OP actually wanted to alter the values. No post described an issue that was being experienced to decide to change the value.

In fact the value in post No. 1 isn't the default in most versions, so I hoped the reply provided more details as to why the OP asked to change them in the first place.

[frollic]

Apologies for being unclear, I was referring to @pavelgl.