Unifi UDR¶

Warning

I do not use Unifi routing gear myself. These notes exist because ocassionally I troubleshoot for friends that do.

To run scripts at boot install:

https://github.com/unifi-utilities/unifios-utilities/tree/main/on-boot-script

You can now place your scripts in /data/on_boot.d

Disable the CNI stuff it installs by default.

To persist /root/.ssh/authorized_keys, place the following in /data/on_boot.d/15-add-root-ssh-keys.sh and chmod +x it.

Place your authorized_keys file in /data/on_boot.d/settings/ssh/authorized_keys

#!/bin/bash

set -e

## Places public keys in ~/.ssh/authorized_keys

KEYS_SOURCE_FILE="/data/on_boot.d/settings/ssh/authorized_keys"
KEYS_TARGET_FILE="/root/.ssh/authorized_keys"

count_added=0
count_skipped=0
while read -r key; do
    # Places public key in ~/.ssh/authorized_keys if not present
    if ! grep -Fxq "$key" "$KEYS_TARGET_FILE"; then
        let count_added++ || true
        echo "$key" >> "$KEYS_TARGET_FILE"
    else
       let count_skipped++ || true
    fi
done < "$KEYS_SOURCE_FILE"

echo "${count_added} keys added to ${KEYS_TARGET_FILE}"
if [ $count_skipped -gt 0 ]; then
    echo "${count_skipped} already added keys skipped"
fi
exit 0