iPhone Performance Tuning: Disabling Unnecessary Battery-Draining Features
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How Cloud Infrastructure Transforms Remote Work and Reduces Costs
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Hadoop in 2026: What’s Changed in Big Data Analytics
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Reading Files from Tar Archives Without Extraction
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Renaming a Windows User Account in Local Users and Groups
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Port Forwarding with iptables and nftables
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Opening Ports with iptables: A Practical Guide
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Redirecting Packets to the FORWARD Chain with iptables and DNAT
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How to Disable WiFi and Bluetooth in iOS 11
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Hide Your Private IP from Thunderbird Email Headers
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Enabling Email Auto-Completion in Evolution
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Removing Newline Characters from Strings in C++
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How to Get a Process’s Port Number
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Persisting iptables Rules on CentOS 7
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Loading a Kernel Module Automatically at Boot on CentOS
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Querying Maximum Temperature Across Linux Server Sensors
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Understanding Samba’s Write Behavior: Sync vs Async
Samba defaults to asynchronous writes for performance reasons, but the behavior is fully configurable. Understanding these options is critical when data integrity matters more than speed. Default Async Behavior By default, Samba writes are asynchronous. When smbd receives a write request, it: Copies data to a memory buffer Returns success to the client immediately Flushes…
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Printing to stderr and stdout in Go
Go provides straightforward ways to write to standard output and standard error streams. Understanding when and how to use each is essential for building robust applications, especially in containerized and cloud environments where log separation matters. Using the fmt Package The fmt package is the most common approach for printing to STDOUT: package main import…
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Disabling DHCP in dnsmasq on Linux
If you’re running dnsmasq primarily for DNS resolution and don’t need its DHCP server capabilities, you’ll want to disable DHCP while keeping DNS functional. This is a common configuration for DNS-only setups or when another service handles DHCP. Default dnsmasq behavior By default, dnsmasq ships with DHCP disabled. However, many distributions include preconfigured DHCP settings…
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Retrieving the Node’s Hostname in C++
Retrieving the hostname of the current system is a common task in systems programming, network applications, and monitoring tools. C++ provides several approaches depending on your platform and requirements. Using gethostname() The most portable approach uses the gethostname() function from <unistd.h>: #include <unistd.h> #include <iostream> #include <cstring> int main() { char hostname[256]; if (gethostname(hostname, sizeof(hostname))…
