How To Change Config_Hz Parameter For Linux Kernel Linux powers the vast majority of the cloud, supercomputers, and embedded systems. Modern distributions have shifted toward immutable architectures (like Fedora Silverblue) and container-first workflows. The Modern Approach Systemd remains the init standard, but tools like systemctl and journalctl are now complemented by eBPF-based observability tools for…
My Ubuntu boots to GUI mode by default. How to make Ubuntu Linux boot to text mode? If you are using Ubuntu older than 16 such as Ubuntu 24.04 LTS: Edit /etc/default/grub Change GRUB_CMDLINE_LINUX=… to GRUB_CMDLINE_LINUX=”text”. Backup your old grub config`$ sudo cp -n /etc/default/grub /etc/default/grub.bak-date +%s ` Update grub$ sudo update-grub If you are…
Flash Player on CentOS 7 (Legacy) Adobe Flash Player reached its End of Life (EOL) on December 31, 2020. The Modern Context In 2026, Flash is no longer supported by any modern browser or operating system. Adobe blocked Flash content from running in Flash Player after 2021. Alternatives in 2026 For legacy content that previously…
I find the rtl8192cu wireless adapter driver on Rocky Linux 9 is quite unstable. After running a while, the connection will disappear. How to make it stable? There is a bug in some hardware where the device never wakes back up. You may try disabling the power management by putting a file 8192cu-disable-power-management.conf under /etc/modprobe.d/:…
How to Install aclocal on Fedora aclocal is part of the GNU Autotools suite, used for generating aclocal.m4 files. The Command sudo dnf install automake Fedora in 2026 In 2026, Fedora 43+ is the current release. The automake package provides aclocal, automake, and related tools. For modern C/C++ development, many developers are moving toward CMake…
How to Add Multiple Static IPs to a Xen VM Configuring multiple IP addresses on a single interface is common for hosting. The Command sudo ip addr add 192.168.1.100/24 dev eth0 Virtualization in 2026 In 2026, while Xen is still used in some cloud environments, KVM has become the standard for Linux virtualization. For managing…
PARSEC is the most important CPU-bound benchmark for systems. It is huge and hard to install because it needs lots of 3-part libs. PARSEC download link for 3.0 version: http://parsec.cs.princeton.edu/download.htm#parsec I remembered I added the answer yesterday night but I could not see the answer currently. Anyway, let me add the answer again after I…
How to Install NAS Parallel Benchmarks The NAS Parallel Benchmarks (NPB) are a suite for evaluating the performance of high-end computers. The Steps Download: Get the source from the NASA website. Compile: make suite (requires MPI and Fortran compilers). HPC in 2026 In 2026, while NPB is still used for legacy comparisons, many HPC centers…
I already have PHP and nginx installed and running on my on Rocky Linux 9. Please guide me, how can install glibc, glibc-common and GD libraries independently on my Rocky Linux 9 without crashing my system? I am not sure how you installed PHP and nginx. If they are installed from CentOS6.7’s Yum repository, you…
Converting Strings to Rune Arrays in Go In Go, a string is a read-only slice of bytes, while a rune is an alias for int32 representing a Unicode code point. The Code s := “Hello, 世界” runes := []rune(s) // Convert to rune array s2 := string(runes) // Convert back to string Go in 2026…
How to Print to Stderr in Go Writing to standard error is essential for logging errors separately from normal output. The Code import ( “fmt” “os” ) fmt.Fprintln(os.Stderr, “This is an error message”) Go in 2026 In 2026, Go 1.26+ is the standard. While fmt.Fprintln(os.Stderr, …) is the classic way, the log package is often…
In Golang How To Convert An Error To A String Go (Golang) has become the language of cloud infrastructure, powering tools like Kubernetes, Docker, and Terraform. Its simplicity and strong standard library make it ideal for microservices and network-heavy applications. The Modern Approach In Go 1.26+, the slog package provides structured logging out of the…
How To Convert The Dmesg Timestamps To Easier To Read Format On Linux Linux powers the vast majority of the cloud, supercomputers, and embedded systems. Modern distributions have shifted toward immutable architectures (like Fedora Silverblue) and container-first workflows. The Modern Approach Systemd remains the init standard, but tools like systemctl and journalctl are now complemented…
In Node Js How To Import Functions From Another Javascript File Java remains a cornerstone of enterprise development. With the rapid six-month release cycle, Java 21+ introduces virtual threads (Project Loom), which revolutionize high-concurrency application development. The Modern Approach Modern Java development leverages build tools like Gradle and frameworks like Spring Boot 3, which require…
How To Process A File Line By Line In Go Linux powers the vast majority of the cloud, supercomputers, and embedded systems. Modern distributions have shifted toward immutable architectures (like Fedora Silverblue) and container-first workflows. The Modern Approach Systemd remains the init standard, but tools like systemctl and journalctl are now complemented by eBPF-based observability…
How to Create a Reader from a String in Go Many Go functions accept an io.Reader interface. To pass a simple string to these functions, use strings.NewReader. The Code import “strings” reader := strings.NewReader(“Hello, World!”) Go in 2026 In 2026, strings.NewReader remains the standard way to wrap a string as a reader. It is zero-copy…
How To Grep A Tab On Linux Linux powers the vast majority of the cloud, supercomputers, and embedded systems. Modern distributions have shifted toward immutable architectures (like Fedora Silverblue) and container-first workflows. The Modern Approach Systemd remains the init standard, but tools like systemctl and journalctl are now complemented by eBPF-based observability tools for deeper…
How To Get The Full Path And Directory Of A Makefile Itself Linux powers the vast majority of the cloud, supercomputers, and embedded systems. Modern distributions have shifted toward immutable architectures (like Fedora Silverblue) and container-first workflows. The Modern Approach Systemd remains the init standard, but tools like systemctl and journalctl are now complemented by…
How To Use Pc Internet Of Window8 On Iphone 4S Via Usb Linux powers the vast majority of the cloud, supercomputers, and embedded systems. Modern distributions have shifted toward immutable architectures (like Fedora Silverblue) and container-first workflows. The Modern Approach Systemd remains the init standard, but tools like systemctl and journalctl are now complemented by…
How To Choose The Key Used By Ssh For A Specific Host Linux powers the vast majority of the cloud, supercomputers, and embedded systems. Modern distributions have shifted toward immutable architectures (like Fedora Silverblue) and container-first workflows. The Modern Approach Systemd remains the init standard, but tools like systemctl and journalctl are now complemented by…