55 lines
2.5 KiB
Markdown
55 lines
2.5 KiB
Markdown
# mullvad-best-server
|
|
|
|
|
|
Determines the mullvad.net server with the lowest latency on macOS and Linux. On Windows, it can only check if the server is up.
|
|
The reason lies with the golang network libraries, according to the `go-ping` library, that is used under the hood for pinging:
|
|
|
|
```
|
|
Please note that accessing packet TTL values is not supported due to limitations in the Go x/net/ipv4 and x/net/ipv6 packages.
|
|
```
|
|
|
|
## Installation
|
|
|
|
Download binary from releases for your platform and unpack.
|
|
|
|
## Usage
|
|
### Default usage
|
|
Execute `mullvad-best-server`. It outputs the code, e.g. `de05`. You can then connect to it with e.g. wireguard using the normal shell scripts.
|
|
|
|
### Command line parameters
|
|
|
|
```angular2html
|
|
Usage of dist/mullvad-best-server_darwin_amd64/mullvad-best-server:
|
|
-c string
|
|
Server country code, e.g. ch for Switzerland (default "ch")
|
|
-l string
|
|
Log level. Allowed values: trace, debug, info, warn, error, fatal, panic (default "info")
|
|
-o string
|
|
Output format. 'json' outputs server json
|
|
-t string
|
|
Server type, e.g. wireguard (default "wireguard")
|
|
```
|
|
|
|
If you want the full server information, execute `mullvad-best-server -o json`. It returns the full json output of the server information.
|
|
The `-c` flag allows to give a country code. Else `ch` will be used.
|
|
|
|
|
|
## Background
|
|
The program uses `https://api.mullvad.net/www/relays/<SERVER_TYPE>/` to get the current server list, pings the ones with the right country
|
|
and outputs the server with the lowest ping.
|
|
|
|
## Integration into a script
|
|
I use it on my router like this (yes, I know I could have done the whole thing with jq and shell scripting, but wanted to use go for maintainability).
|
|
```
|
|
#!/bin/sh
|
|
set -e
|
|
LATEST_RELEASE=$(curl -sSL https://api.github.com/repos/bastiandoetsch/mullvad-best-server/releases/latest | jq -r '.assets[]| .browser_download_url' | grep Linux_arm64)
|
|
curl -sSL $LATEST_RELEASE > /root/mullvad-best-server
|
|
chmod +x /root/mullvad-best-server
|
|
/usr/bin/wg-quick down $(wg show|grep interface | cut -d: -f2) || echo "nothing to shut down"
|
|
/usr/bin/wg-quick up "mullvad-$(/root/mullvad-best-server -c de)"
|
|
```
|
|
|
|
## Troubleshooting
|
|
You may have to update your `/usr/bin/wg-quick` script for the new mullvad servers, as they have names longer than 15 chars. Replace `[[ $CONFIG_FILE =~ ^[a-zA-Z0-9_=+.-]{1,15} ]]$` with `[[ $CONFIG_FILE =~ ^[a-zA-Z0-9_=+.-]{1,25}$ ]]` and `[[ $CONFIG_FILE =~ (^|/)([a-zA-Z0-9_=+.-]{1,15})\.conf$ ]]` with `[[ $CONFIG_FILE =~ (^|/)([a-zA-Z0-9_=+.-]{1,25})\.conf$ ]]`
|