OrbitServers Blog
Server & Solana Infrastructure Blog
Guides, product updates and deep dives on high-performance infrastructure, low-latency networking and Solana hosting.
How to Install a .deb File on Ubuntu
Install a .deb file with apt install ./file.deb for automatic dependencies, or dpkg -i plus apt --fix-broken install when it isn't.
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How to Uninstall Packages in Ubuntu (apt & dpkg)
Remove a package with apt remove, purge its leftover config files with apt purge, and clean up unused dependencies with autoremove.
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How to Enable and Secure SSH on Ubuntu
Install openssh-server, allow it through ufw, and lock down root login and password auth once key-based access actually works.
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How to Change the Default SSH Port on Linux
Change SSH from port 22 to a custom port in sshd_config, open it in your firewall, and connect with the right flag afterward.
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How to Use rsync on Linux to Sync Local & Remote Directories
Copy folders with rsync locally, push or pull them over SSH, resume interrupted transfers, and turn a one-off copy into a true mirror with --delete.
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How to List Users in Linux (All Commands)
Every way to list users on a Linux system — all accounts, just human users, who's logged in right now, and the one command that shows all of it at once.
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How to Add a User to Sudoers in Ubuntu
Give a user sudo access on Ubuntu the safe way — the sudo group, a scoped sudoers.d file, and the gotchas (like the -a flag) that trip people up.
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How to Create a User in Linux (With Home Directory)
Create a Linux user with a home directory using useradd -m, verify it worked, and see why some distros create one automatically and others don't.
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A Complete Guide to Linux Bash History
Everything you need to know about bash shell history — where it's stored, how to view and search it, and how to clear or disable it when it matters.
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