[root@rhce-ryanrudolf]# rm -rf / 2> /dev/null

things I break/fix for fun and learning

Jan 4, 2018 - 1 minute read - Comments

How to Recover ROOT Password in RedHat Enterprise Linux 7

ROOT is the superuser / admin account on Linux systems. There are times wherein an admin needs to recover the root password due to compromised system, or simply because the password is very complex it is hard to remember! I’ve seen several ways on how to recover root password on several Linux system - Debian, Ubuntu, Fedora, CentOS, etc etc. But by studying the LinuxAcademy RHCSA course, it looks like the RedHat way is the easiest and straightforward way!

Dec 25, 2017 - 2 minute read - Comments - android

Android Custom ROM Xenon HD

Recently I semi-bricked my old Xperia flagship phone. Semi-brick as it still powers ON but Android does not load. After so many trial and error, I was able to boot to custom recovery TWRP and revive the phone! I’m so happy as I now have 2 Android phones that will complement one another. Both will only have data only plans and this Xperia flagship phone will be my backup for VoIP.

Currently I have the Asus Zenfone 2 Laser 1080p (Z00T) and Sony Xperia ZL (Odin). I am looking around for custom ROMs based on Nougat and have substratum OMS support (for themeing support). I want a custom ROM that both exist on Z00T and Odin devices, so that there will only be 1 UI and the looks will be consistent on both.

Dec 25, 2017 - 2 minute read - Comments - android

Reviving an Xperia Flagship Phone

My first Android phone is a Cherry Mobile Flare S100, a rebranded phone from China. The reason I decided to use this is because it is cheap, and at that time I don’t know if Android will stick to me. It was still Android Ice Cream Sandwhich (ICS) at that time, the fusion between Android tablet (Honeycomb) and Android phone (Gingerbread).

Dec 19, 2017 - 1 minute read - Comments

Server Uptime Using Cron and Text File Manipulation

This page will display the uptime of this Linux server and refresh every 5minutes. Uptime is the number of hours / days that a server is powered ON - no restarts, no reboots, no buts. For personal preference, a server with high uptime is just pure awesome! That means a sysadmin was able to maintain the system in tip-top shape without the need for a reboot! Or it could also be the reverse!

Dec 7, 2017 - 1 minute read - Comments

How I Practice for RHCSA

I’m using Debian Linux and i3 window manager. Debian was a previous install on my main laptop while I was preparing for CompTIA Linux+ / LPIC-1. Debian grew on me and hadn’t had time to reformat to CentOS.

I do have several servers / VMs that are running on CentOS though. I experienced first-hand that there are several commands that behave differently in the CentOS / Debian world.