Author: sepedatua

Hey, I'm SepedaTua — a self-taught programmer and sysadmin in my early 40s, running CrushEdge to share the fixes I wish I'd found faster. I spend my days wrestling WordPress, WooCommerce, Linux servers, PHP, Python, and whatever else small-business sites throw at me. After years of trial-and-error (and way too many late-night server crashes), I document the solutions that actually work — safely, with backups first, and no unnecessary fluff. Outside the terminal, I'm a dad to four awesome kids, married to my best friend, and still squeezing in some video games when the house quiets down. If you're stuck on a problem, grab a coffee and let's sort it out together.
Hey, I'm SepedaTua — a self-taught programmer and sysadmin in my early 40s, running CrushEdge to share the fixes I wish I'd found faster. I spend my days wrestling WordPress, WooCommerce, Linux servers, PHP, Python, and whatever else small-business sites throw at me. After years of trial-and-error (and way too many late-night server crashes), I document the solutions that actually work — safely, with backups first, and no unnecessary fluff. Outside the terminal, I'm a dad to four awesome kids, married to my best friend, and still squeezing in some video games when the house quiets down. If you're stuck on a problem, grab a coffee and let's sort it out together.

How to install a missing telnet client on Windows Vista?

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Did you notice that Windows Vista fresh install do not have telnet client by default? How to install it? Easy… From Windows Vista desktop:[*] Click “Start” menu[*] Then “Control Panel”[*] Then “Programs and Features”[*] Click the “Turn Windows feature on or off” link on the left sidebar[*] If UAC enabled,, click “Continue”[*] Scroll down, place a check mark on “Telnet…

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Practical systemctl Basics: Manage systemd Services Safely

Practical systemctl Basics: Manage systemd Services Safely

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When `systemctl` Confuses You (And When It Won’t Work At All) A super common mistake: assuming every Linux server uses systemd and blindly copy-pasting systemctl commands from some blog. If your terminal answers with something like: bash: systemctl: command not found or systemctl: command not found there’s a good chance your distro isn’t using systemd at all. In that case,…

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How to: disable wvdial Auto DNS — use static DNS settings

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Sometimes you wanted to get rid of your crappy ISP DNS servers for good. I’m using wvdial to dial up, here’s what I do. Steps: [*] Disable usepeerdns. Edit “/etc/ppp/peers/wvdial” file. Commented the usepeerdns line. Here’s what is should look: #usepeerdns [*] Disable Auto DNS in wvdial. Edit “/etc/wvdial.conf” file. Set Auto DNS Off. Auto DNS = Off [*] Add…

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Forward Ports Through a Linux Gateway with iptables NAT

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Why Your Port Forwarding Isn’t Working A very common mistake with port forwarding on Linux is assuming a single DNAT rule is enough. You add one iptables rule, try to hit your server from outside, and… nothing. In reality, proper forwarding through a Linux gateway needs three things working together: IP forwarding in the kernel, packet filtering rules in the…

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