Fast IP Ping

Question

Fast IP Ping

ItsIgnacioPortal opened this issue 4 months ago · 3 comments

ItsIgnacioPortal commented 4 months ago

CurseForge link

https://www.curseforge.com/minecraft/mc-mods/fast-ip-ping

CurseForge Mod Distribution

Allowed

Modrinth link

https://modrinth.com/mod/fast-ip-ping

Source/other link

https://github.com/Fallen-Breath/fast-ip-ping

Mod file size

10.3KB

License

(any other license)

What it does

Yeet the laggy reversed DNS lookup for literal IP server addresses

Extracted from the yeetServerIpReversedDnsLookup option in TweakerMore Mod

What & Why & How

For servers whose addresses are represented solely by a literal IP, e.g. 192.168.2.10:25565, disable reverse DNS lookups in the corresponding InetAddress object

Many non-loopback IPs lack associated domain names, which makes reverse lookups time-consuming

// java.net.InetAddress#getHostName(boolean)
String getHostName(boolean check) {
    if (holder().getHostName() == null) {  // It will be null if InetAddress.getByName() received a literal IP
        holder().hostName = InetAddress.getHostFromNameService(this, check);  // <-- takes forever
    }
    return holder().getHostName();
}

This option sets the domain of those servers directly to their IP, bypassing the reverse DNS check

This results in a 1s ~ 5s reduction in time for servers with literal IP address. Affects the following environments:

Pinging the server in the server list screen
Connecting to the server

Environment

Client-side only
Fabric / Forge / NeoForge mod loader. No extra requirement is needed

Why should it be in the modpack

It reduces the time it takes to check the status of LAN servers in the multiplayer menu.

Why shouldn't it be in the modpack

No response

Additional details