xTom is a privately held professional Infrastructure as a service (IaaS) company.
Joined December 2011
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- Following 77
- Followers 132
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8 Photos and videos
Debian or Ubuntu?
Same roots. Different priorities.
Debian = stability.
Ubuntu = ease and speed.
Choose based on your use case, not hype.
Read more:
xt.om/sJLp
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What is RAID?
It spreads data across multiple drives to improve performance or prevent data loss.
One disk fails doesn’t mean everything is gone.
Storage isn’t just space. It’s strategy.
Read more:
xt.om/H4xI
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What is a GRE tunnel?
It wraps packets and sends them across networks like a virtual link.
Useful for connecting sites or routing traffic privately.
Under the hood, it’s simple but powerful.
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xt.om/HrUc
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Need better IP or domain lookup than WHOIS?
RDAP gives structured, more reliable data with modern access methods.
Cleaner, more useful, easier to integrate.
Time to upgrade your tools.
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xt.om/AdBG
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What is the Linux kernel?
It’s the core that connects hardware and software.
Processes, memory, devices — all go through it.
No kernel, no OS.
Everything starts here.
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xt.om/eZB7
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What is a Looking Glass?
It lets you see routing and network paths from another server’s view.
Debug latency. Verify routes. Troubleshoot globally.
Essential for network operators.
Read more:
xt.om/HTLJ
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How does the internet actually work?
It’s not magic.
It’s packets, routing, protocols, and global infrastructure working together.
Behind every click is a complex system.
Understand it. Build better.
Read more:
xt.om/LQJb
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Paying monthly for tools you could run yourself?
Self-host OpenClaw and keep control of your data and costs.
Your server. Your rules.
Stop renting. Start owning.
Read more:
xt.om/xjxx
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What is an ASN?
It’s the ID that lets your network speak BGP on the global internet.
No ASN, no independent routing.
If you’re building serious infrastructure, this matters.
Ownership starts at the network layer.
Read more: xt.om/xN3B
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What is BGP?
It’s the protocol that decides how traffic moves across the global internet.
No BGP, no large-scale routing.
If you run networks or data centers, this is core knowledge.
Routing shapes the internet.
Read more: xt.om/kTx9
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Website slow or unreachable?
Start with ping.
Trace with traceroute.
Go deeper with mtr.
Don’t guess network issues. Diagnose them.
Read more: xt.om/D2ex
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What is IP Transit?
It’s how your traffic reaches the global internet.
No transit, no global routing.
If you run networks or host infrastructure, this is foundational.
Connectivity isn’t magic.
Read more: xt.om/nxYQ
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sudo or su?
Both give elevated access.
But they work very differently.
Use the wrong one in production and you risk security issues.
Least privilege isn’t optional.
Read more: xt.om/mk3x
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apt, dnf, or pacman?
Different distros. Different package managers.
Same goal: install, update, manage software fast.
If you run Linux servers, know your toolchain.
Read more: xt.om/YQoc
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chmod or chown?
One changes permissions.
The other changes ownership.
Mix them up on production and you’ll break things fast.
If you run Linux, know the difference.
Read more: xt.om/nCPm
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Restarting services with random commands?
systemctl controls start, stop, restart, enable — all in one place.
If you run Linux servers, this isn’t optional knowledge.
Manage services the right way.
Read more: xt.om/auzy
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Still testing APIs from the browser?
curl lets you send requests, debug endpoints, and automate workflows — straight from the terminal.
If you build or run systems, you need this tool.
Simple. Powerful.
Read more: xt.om/86Uc
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curl or wget?
Both download files.
But curl is built for APIs. wget is built for recursive downloads.
If you work in DevOps, knowing the difference saves time.
Use the right tool.
Read more: xt.om/N6Qc
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Cron or systemd for scheduled tasks?
Cron is simple.
systemd timers are more flexible and modern.
If you’re running production, the choice matters.
Don’t schedule blindly.
Read more: xt.om/FQPP
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Still running tasks manually?
Cron jobs automate scripts, backups, updates — on schedule.
Set it once. Let it run.
Automation isn’t optional in production.
Read more: xt.om/4uTo
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