Not every project needs a database server.
SQLite is a full SQL database in one file. When it fits, and when to move on.
https://xt.om/sbfx
#SQLite #Database
SQLite is a full SQL database in one file. When it fits, and when to move on.
https://xt.om/sbfx
#SQLite #Database
What Is SQLite, and When Is It Enough Instead of a Full Database Server? | xTom
SQLite runs as a single file with no server process at all, and it handles far more real-world workloads than people assume. Here's how it works, when it's genuinely enough, and how to migrate later if you outgrow it.
xt.om
October 7, 2026 at 3:09 PM
Not every project needs a database server.
SQLite is a full SQL database in one file. When it fits, and when to move on.
https://xt.om/sbfx
#SQLite #Database
SQLite is a full SQL database in one file. When it fits, and when to move on.
https://xt.om/sbfx
#SQLite #Database
SysV init vs systemd.
Sequential scripts and runlevels versus parallel, dependency-aware startup. What changed and why.
https://xt.om/rjxx
#Linux #systemd
Sequential scripts and runlevels versus parallel, dependency-aware startup. What changed and why.
https://xt.om/rjxx
#Linux #systemd
Init vs. systemd: What's the Difference and Why It Matters | xTom
Every Linux system boots with the help of an init system, but the one running on your server today looks nothing like the one from a decade ago. Here's what actually separates traditional SysV init from systemd, and why it matters for how you manage services.
xt.om
October 6, 2026 at 3:08 PM
SysV init vs systemd.
Sequential scripts and runlevels versus parallel, dependency-aware startup. What changed and why.
https://xt.om/rjxx
#Linux #systemd
Sequential scripts and runlevels versus parallel, dependency-aware startup. What changed and why.
https://xt.om/rjxx
#Linux #systemd
Containers are two kernel features at work.
Namespaces isolate what a process sees. cgroups limit what it uses.
https://xt.om/QJ7x
#Linux #Containers
Namespaces isolate what a process sees. cgroups limit what it uses.
https://xt.om/QJ7x
#Linux #Containers
Namespaces and Control Groups (cgroups): How Linux Isolation Works | xTom
Linux namespaces and cgroups are the two kernel features that make containers possible, one hides what a process can see, the other limits what it can use. Here's how they actually work under the hood.
xt.om
October 5, 2026 at 3:08 PM
Containers are two kernel features at work.
Namespaces isolate what a process sees. cgroups limit what it uses.
https://xt.om/QJ7x
#Linux #Containers
Namespaces isolate what a process sees. cgroups limit what it uses.
https://xt.om/QJ7x
#Linux #Containers
Bash, dash, zsh, or fish?
Each Linux shell trades speed, features, and compatibility differently. Here is how to choose.
https://xt.om/CoNQ
#Linux #Shell
Each Linux shell trades speed, features, and compatibility differently. Here is how to choose.
https://xt.om/CoNQ
#Linux #Shell
What Are the Different Types of Shells in Linux? | xTom
Bash isn't the only shell on Linux. Here's a breakdown of the most common shell types, sh, bash, dash, zsh, ksh, csh/tcsh, and fish, what each is actually built for, and how to check or switch which one you're running.
xt.om
October 4, 2026 at 3:07 PM
Bash, dash, zsh, or fish?
Each Linux shell trades speed, features, and compatibility differently. Here is how to choose.
https://xt.om/CoNQ
#Linux #Shell
Each Linux shell trades speed, features, and compatibility differently. Here is how to choose.
https://xt.om/CoNQ
#Linux #Shell
If you run a Linux server, you already use Bash.
It is your shell and the scripting language behind most automation.
https://xt.om/xDEj
#Bash #Linux
It is your shell and the scripting language behind most automation.
https://xt.om/xDEj
#Bash #Linux
What Is Bash (Bourne Again Shell)? | xTom
Bash is the command-line shell and scripting language that runs behind most Linux (and more) systems and servers. Here's what it does, where it came from, and how to start using it.
xt.om
October 3, 2026 at 3:01 PM
If you run a Linux server, you already use Bash.
It is your shell and the scripting language behind most automation.
https://xt.om/xDEj
#Bash #Linux
It is your shell and the scripting language behind most automation.
https://xt.om/xDEj
#Bash #Linux
Server alerts to your phone, self-hosted.
Deploy ntfy with Docker in minutes for CI, cron, and uptime alerts.
https://xt.om/c94F
#ntfy #SelfHosted
Deploy ntfy with Docker in minutes for CI, cron, and uptime alerts.
https://xt.om/c94F
#ntfy #SelfHosted
How to Self-Host ntfy for Mobile Push Notifications | xTom
ntfy is a simple, open-source notification service you can run yourself. Here's how to self-host it, lock it down, and start sending push notifications straight to your phone from your own scripts and services.
xt.om
October 2, 2026 at 3:09 PM
Server alerts to your phone, self-hosted.
Deploy ntfy with Docker in minutes for CI, cron, and uptime alerts.
https://xt.om/c94F
#ntfy #SelfHosted
Deploy ntfy with Docker in minutes for CI, cron, and uptime alerts.
https://xt.om/c94F
#ntfy #SelfHosted
xTom is now live at Equinix NY2 in Secaucus, NJ.
Colocation, custom servers, IP transit, and remote hands, all on AS949.
https://xt.om/h6dL
#xTom #Equinix
Colocation, custom servers, IP transit, and remote hands, all on AS949.
https://xt.om/h6dL
#xTom #Equinix
xTom Launches Services at Equinix NY2 in New York | xTom
xTom launches colocation and custom server services at Equinix NY2 in the New York metropolitan area.
xt.om
October 2, 2026 at 3:02 PM
xTom is now live at Equinix NY2 in Secaucus, NJ.
Colocation, custom servers, IP transit, and remote hands, all on AS949.
https://xt.om/h6dL
#xTom #Equinix
Colocation, custom servers, IP transit, and remote hands, all on AS949.
https://xt.om/h6dL
#xTom #Equinix
xTom is now live at MK Netzdienste, our 2nd Frankfurt site.
Colocation, dedicated servers, VPS, and IP transit available.
https://xt.om/uH7x
#xTom #Frankfurt
Colocation, dedicated servers, VPS, and IP transit available.
https://xt.om/uH7x
#xTom #Frankfurt
xTom Launches Services at MK Netzdienste Datacenter in Frankfurt | xTom
xTom opens an additional Frankfurt node at MK Netzdienste Datacenter, offering colocation, custom servers, VPS and IP transit.
xt.om
October 1, 2026 at 3:00 PM
xTom is now live at MK Netzdienste, our 2nd Frankfurt site.
Colocation, dedicated servers, VPS, and IP transit available.
https://xt.om/uH7x
#xTom #Frankfurt
Colocation, dedicated servers, VPS, and IP transit available.
https://xt.om/uH7x
#xTom #Frankfurt
恐らくCloudflareなどのサービスでVPNプロバイダーが使ってるホスティングはブロックされてることが多いと思うが…
日本ならM247、DataPacket、xTomあたりか…
日本ならM247、DataPacket、xTomあたりか…
September 3, 2026 at 4:20 AM
恐らくCloudflareなどのサービスでVPNプロバイダーが使ってるホスティングはブロックされてることが多いと思うが…
日本ならM247、DataPacket、xTomあたりか…
日本ならM247、DataPacket、xTomあたりか…
There is no single best hosting location.
The right choice depends on where your users are, what laws apply to the data, how good the local connectivity is, and whether one region is enough.
How to choose:
The right choice depends on where your users are, what laws apply to the data, how good the local connectivity is, and whether one region is enough.
How to choose:
Is There Any One Location Best for Hosting? | xTom
There's no single best place in the world to host your servers, but there is a best place for your project. Here's how location shapes speed, compliance, and reliability, and how to pick the right one.
xt.om
July 8, 2026 at 2:08 PM
There is no single best hosting location.
The right choice depends on where your users are, what laws apply to the data, how good the local connectivity is, and whether one region is enough.
How to choose:
The right choice depends on where your users are, what laws apply to the data, how good the local connectivity is, and whether one region is enough.
How to choose:
Need your own IP addresses?
Request IPv6 through an RIR, wait for limited IPv4, lease IPv4 for flexibility, or buy IPv4 for long-term control. The right path depends on time, budget, routing, and ownership.
Request IPv6 through an RIR, wait for limited IPv4, lease IPv4 for flexibility, or buy IPv4 for long-term control. The right path depends on time, budget, routing, and ownership.
How Do You Obtain Your Own IP Addresses? | xTom
Getting your own IP addresses can mean going straight to a Regional Internet Registry for next to nothing, or paying to lease or buy space on the open market. Here's how each route works, what it costs, and which one actually fits your situation.
xt.om
July 7, 2026 at 2:07 PM
Need your own IP addresses?
Request IPv6 through an RIR, wait for limited IPv4, lease IPv4 for flexibility, or buy IPv4 for long-term control. The right path depends on time, budget, routing, and ownership.
Request IPv6 through an RIR, wait for limited IPv4, lease IPv4 for flexibility, or buy IPv4 for long-term control. The right path depends on time, budget, routing, and ownership.
IPv4 pricing in 2026 is a market story, not a fixed number.
Small blocks like /24s can cost more per IP than larger blocks, leasing and buying tell different stories, and 2026 is showing signs of a rebound.
Small blocks like /24s can cost more per IP than larger blocks, leasing and buying tell different stories, and 2026 is showing signs of a rebound.
IP Address Prices in 2026: What the Market Data Tells Us | xTom
IPv4 prices went through one of the sharpest corrections on record in 2025, and 2026 is showing the first real signs of a turnaround. Here's what the latest market data says an IP address actually costs this year, and what's driving the numbers.
xt.om
July 6, 2026 at 2:07 PM
IPv4 pricing in 2026 is a market story, not a fixed number.
Small blocks like /24s can cost more per IP than larger blocks, leasing and buying tell different stories, and 2026 is showing signs of a rebound.
Small blocks like /24s can cost more per IP than larger blocks, leasing and buying tell different stories, and 2026 is showing signs of a rebound.
A Point of Presence is where networks meet.
PoPs are the routers, switches, transit links, peering sessions, and edge systems inside data centers that decide how close your network feels to users.
Why PoPs matter:
PoPs are the routers, switches, transit links, peering sessions, and edge systems inside data centers that decide how close your network feels to users.
Why PoPs matter:
What's a Point of Presence (PoP)? | xTom
A point of presence (PoP) is the physical spot where one network meets another and hands off traffic, and it quietly shapes how fast your sites and apps feel. Here's what a PoP actually is, what lives inside one, and how to check a provider's PoP footprint before you commit.
xt.om
July 5, 2026 at 2:07 PM
A Point of Presence is where networks meet.
PoPs are the routers, switches, transit links, peering sessions, and edge systems inside data centers that decide how close your network feels to users.
Why PoPs matter:
PoPs are the routers, switches, transit links, peering sessions, and edge systems inside data centers that decide how close your network feels to users.
Why PoPs matter:
Manual backups fail because people forget.
Automated Linux backups with rsync, cron, rotation, database dumps, offsite copies, alerts, and restore tests are the difference between an incident and a disaster.
Automated Linux backups with rsync, cron, rotation, database dumps, offsite copies, alerts, and restore tests are the difference between an incident and a disaster.
How to Automate Linux Backups (and Actually Sleep at Night) | xTom
Losing data on a Linux server is painful, and it's almost always preventable. This guide walks you through setting up automatic Linux backups using tools like rsync, cron, and tar, so your data is protected without you having to think about it.
xt.om
July 4, 2026 at 2:06 PM
Manual backups fail because people forget.
Automated Linux backups with rsync, cron, rotation, database dumps, offsite copies, alerts, and restore tests are the difference between an incident and a disaster.
Automated Linux backups with rsync, cron, rotation, database dumps, offsite copies, alerts, and restore tests are the difference between an incident and a disaster.
A CDN is not just a speed feature. It is an infrastructure layer.
CDNs cache content at edge locations, reduce latency, offload origin traffic, terminate TLS, and absorb spikes.
When do you actually need one?
CDNs cache content at edge locations, reduce latency, offload origin traffic, terminate TLS, and absorb spikes.
When do you actually need one?
What Is a CDN and How Do They Work? | xTom
A content delivery network (CDN) is a globally distributed system of servers that delivers web content to users faster by serving it from a location close to them. This article explains what CDNs are, how they work under the hood, and when you actually need one.
xt.om
July 3, 2026 at 2:06 PM
A CDN is not just a speed feature. It is an infrastructure layer.
CDNs cache content at edge locations, reduce latency, offload origin traffic, terminate TLS, and absorb spikes.
When do you actually need one?
CDNs cache content at edge locations, reduce latency, offload origin traffic, terminate TLS, and absorb spikes.
When do you actually need one?
RIRs are the organizations behind IP addresses and ASNs.
ARIN, RIPE NCC, APNIC, LACNIC, and AFRINIC allocate internet number resources and shape how networks get address space.
How the system works:
ARIN, RIPE NCC, APNIC, LACNIC, and AFRINIC allocate internet number resources and shape how networks get address space.
How the system works:
What Is a Regional Internet Registry (RIR)? | xTom
Regional Internet Registries are the organizations responsible for allocating IP addresses and Autonomous System Numbers across the globe. Understanding how they work is useful for anyone managing infrastructure, requesting IP space, or thinking about internet routing.
xt.om
July 2, 2026 at 2:07 PM
RIRs are the organizations behind IP addresses and ASNs.
ARIN, RIPE NCC, APNIC, LACNIC, and AFRINIC allocate internet number resources and shape how networks get address space.
How the system works:
ARIN, RIPE NCC, APNIC, LACNIC, and AFRINIC allocate internet number resources and shape how networks get address space.
How the system works:
GeoDNS routes users by location at the DNS layer.
Instead of returning the same IP to everyone, it can send Europe to a European server, Asia to an Asian server, and North America to a North American server.
Instead of returning the same IP to everyone, it can send Europe to a European server, Asia to an Asian server, and North America to a North American server.
What Is GeoDNS? How Location-Based DNS Routing Works | xTom
GeoDNS lets you route users to the server closest to them based on their location, cutting latency and improving reliability. Here's how it works and when you should use it.
xt.om
July 1, 2026 at 2:05 PM
GeoDNS routes users by location at the DNS layer.
Instead of returning the same IP to everyone, it can send Europe to a European server, Asia to an Asian server, and North America to a North American server.
Instead of returning the same IP to everyone, it can send Europe to a European server, Asia to an Asian server, and North America to a North American server.
Git on Linux does not need to be mysterious.
Install it with your distro package manager, set your name and email, then learn the everyday loop: status, add, commit, branch, pull, push, and undo.
Starter guide:
Install it with your distro package manager, set your name and email, then learn the everyday loop: status, add, commit, branch, pull, push, and undo.
Starter guide:
How to Install and Use Git on Linux | xTom
Git is the standard version control system for developers and sysadmins alike, and getting it running on Linux takes just a few minutes. This guide walks you through installation, basic configuration, and the everyday commands you'll actually use.
xt.om
June 30, 2026 at 2:05 PM
Git on Linux does not need to be mysterious.
Install it with your distro package manager, set your name and email, then learn the everyday loop: status, add, commit, branch, pull, push, and undo.
Starter guide:
Install it with your distro package manager, set your name and email, then learn the everyday loop: status, add, commit, branch, pull, push, and undo.
Starter guide:
IPv4 /24, IPv6 /48, /64, /32 - the numbers matter.
CIDR block sizes decide how networks are allocated, subnetted, and announced over BGP. Learn why /24 matters in IPv4 and why IPv6 thinks in much larger blocks.
CIDR block sizes decide how networks are allocated, subnetted, and announced over BGP. Learn why /24 matters in IPv4 and why IPv6 thinks in much larger blocks.
Understanding IPv4 and IPv6 Block Sizes | xTom
IP address blocks are the backbone of how networks are organized and routed across the internet, but the differences between IPv4 and IPv6 allocations can be confusing. This guide breaks down block sizes, CIDR notation, and what it all means in practice.
xt.om
June 29, 2026 at 2:05 PM
IPv4 /24, IPv6 /48, /64, /32 - the numbers matter.
CIDR block sizes decide how networks are allocated, subnetted, and announced over BGP. Learn why /24 matters in IPv4 and why IPv6 thinks in much larger blocks.
CIDR block sizes decide how networks are allocated, subnetted, and announced over BGP. Learn why /24 matters in IPv4 and why IPv6 thinks in much larger blocks.
Linux desktop share is no longer just a niche talking point.
March 2026 data shows Linux at 3.16% globally by StatCounter and 5.33% on Steam, with much higher usage among developers.
Full breakdown:
March 2026 data shows Linux at 3.16% globally by StatCounter and 5.33% on Steam, with much higher usage among developers.
Full breakdown:
Linux Market Share Statistics [March 2026 Report] | xTom
Linux desktop market share is climbing fast, with fresh data from StatCounter, the Steam Hardware Survey, and Stack Overflow painting a clearer picture than ever. Here's what the numbers say halfway through 2026.
xt.om
June 28, 2026 at 2:04 PM
Linux desktop share is no longer just a niche talking point.
March 2026 data shows Linux at 3.16% globally by StatCounter and 5.33% on Steam, with much higher usage among developers.
Full breakdown:
March 2026 data shows Linux at 3.16% globally by StatCounter and 5.33% on Steam, with much higher usage among developers.
Full breakdown:
grep looks simple until you use it every day.
Search logs, filter command output, match patterns, show context, count errors, and troubleshoot faster from the Linux terminal.
The grep flags you will actually use:
Search logs, filter command output, match patterns, show context, count errors, and troubleshoot faster from the Linux terminal.
The grep flags you will actually use:
What Is the Grep Command in Linux and How Do You Use It? | xTom
Grep is one of the most useful command-line tools in Linux, letting you search through files and output for exactly the text you're looking for. This guide covers what it does, how it works, and the most practical ways to use it.
xt.om
June 27, 2026 at 2:03 PM
grep looks simple until you use it every day.
Search logs, filter command output, match patterns, show context, count errors, and troubleshoot faster from the Linux terminal.
The grep flags you will actually use:
Search logs, filter command output, match patterns, show context, count errors, and troubleshoot faster from the Linux terminal.
The grep flags you will actually use:
>X{]yfM<b<9h{CY0<gBADH$xToM-$u0y
June 18, 2026 at 1:20 PM
>X{]yfM<b<9h{CY0<gBADH$xToM-$u0y
