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1. Post-installation Upgrade all packages SSH to the router. Check if ca-certificates is installed Try opkg update first, if errors code 4 occurs, then: opkg update --no-check-certificate \ opkg install ca-certificates --no-check-certificate Add a password Open luci web interface. System 👉 Administration 👉 Router Password 👉 Set password 👉 Save. 2. Personalization Rename the router Open luci web interface. System 👉 System 👉 Hostname 👉 Save & Apply. Change NTP server Open luci web interface....

Why should I care if my server is using swap? Swap is slower than RAM Swap is written to SSD, which has a limited number of write cycles, while RAM is not You spent money on RAM, don’t waste it Swappiness value Range: 0-100 Default: 60 0: Swap is used only when absolutely necessary 100: Swap is used as much as possible Check swappiness value 1 cat /proc/sys/vm/swappiness Change swappiness value Temporarily 1 sudo sysctl vm....

Generating a new SSL certificate 1 2 3 4 5 6 7 8 9 10 11 12 13 14 openssl req \ -newkey rsa:2048 \ -x509 \ -nodes \ -keyout TLS.key \ -new \ -out TLS.cert \ -subj /CN=<Issuer> \ -reqexts SAN \ -extensions SAN \ -config <(cat /etc/ssl/openssl.cnf \ <(printf '[SAN]\nsubjectAltName=DNS:<HOST_NAME>,IP:<IP_ADDRESS>')) \ -sha256 \ -days <EXPIRY_IN_DAYS> Change the <Issuer> to the name of your liking. Add as much DNS:<HOST_NAME> and IP:<IP_ADDRESS> as you want, separated by comma....

Use case A repository that hosts a static website. Steps Creating a new branch 1 git checkout --orphan latest_branch Adding files to the new branch 1 2 git add -A git commit -am "update" Deleting the old branch 1 git branch -D main Renaming the new branch 1 git branch -m main Force push to the remote repository 1 git push -f origin master References How can I delete old commits in Github via terminal?...

Generating a new SSH key Read this to learn how to generate a public/private key pair. Adding the SSH key to your GitHub account Profile > Settings > SSH and GPG keys > New SSH key Enter a title of your choice and the public key. Change key type to Signing key and click Add SSH key. Configuring Git to sign commits by default 1 2 3 git config --global commit....