Leo's Notes

Welcome to Leo's Notes

A collection of random notes on various topics.
This is mostly for my own personal use, but if you see a flagrant error (which isn't entirely impossible!) let me know.

This is Leo's personal Wiki. It's a place where I document things I'm using, working on, or trying to learn. As you might be aware already, the content is heavy on technical computer stuff from the lens of a systems operator with some random bits sprinkled here and there.

Notes on this Wiki

v t e Linux

Various Linux Notes	/etc/fstab Access.conf ACL Apache Proxy to Internal Server APM X-C1 (Mustang) ARP Authselect Bash Scripting Blockparser Booting Linux without a Graphics Card Building Container Images Burning CD/DVD in Linux Clear RAID Signatures on Linux Cobbler Colorized Terminal Outputs Compiling MIPS Configure Sendmail CPanel CPanel Fork Bomb Protection CPU Frequency Scaling Create a Linux User with an Empty Password Cron and PAM Issues Dell OpenManage Diff Two Command Outputs DirectAdmin Disable Filesystem Check on Startup DNS Ad Blocker Driver Disk Drop caches End / Home keys don't work in Terminal Entropy in the Linux Kernel Entropy Source using RTL-SDR Exit Codes Extract .exe Resources with dd File Attributes Fixing ixgbe unsupported SFP+ module type was detected Get Active Linux Virtual Console Getting Hardware UUID Hosts.deny How to change Linux desktop user directories How to hot-swap SATA disks on Linux HP Smart Storage Administrator Hyper-threading IBM Spectrum Archive IBM Spectrum Protect IBM Tape IBM Tape Diagnostic Tool InterWorx Kerberize NFS Kerberize SSH Linux Clustering Linux Fonts Linux Namespaces Linux Network Interface Naming Linux Nvidia Driver Linux Process Accounting Linux Uptime in Seconds Linux UTF-8 Font Mainline Kernel on CentOS 7 Missing Fonts Mod fastcgi Install on Apache 2 / cPanel Mod fcgid Monitoring network traffic in Linux Mounting / Unmounting KVM Image Mounting Samba (CIFS) shares Multiple Networks on Linux MySQL Database with Hash Sign No Console Output Number of Files Opened Open OnDemand Packing and unpacking initrd PAM Issues Partition Alignment Patching a binary file with dd Perl Module Location Raspberry Pi Red Hat kickstart Red Hat to Debian Reverse SSH Tunnel Ruby on Rails under cPanel Rutorrent + rtorrent Installation Guide on CentOS 6.4 Self Signed SSL Certificates Service Management Sick Beard StartSSL Free Certificate Symlink Taking a Screenshot in X11 Timezone Tor TOR Transparent Proxy Traefik Troubleshooting a Slow Linux System Turning on swap with a page file Udev Rules Verify SSL Certificate matches Private Key VMware Workstation Webcam X Display Manipulation X Forwarding

Linux Tools and Utilites	Anaconda Ansible Aria2 Autofs Awk Badblocks Bash Shell Binwalk Bosh Ceph Chntpw Chrony Clonezilla Cloud-init CloudStack Column Cron Curl Cvs2git Date Dbus Dd Dm-crypt Dovecot DRBD ElasticSearch Enroot Environment Module Envsubst Fail2ban FFmpeg Find Firecracker Flashrom Foreman FortiClient Fswebcam Galaxy Git Gnome Gobetween GPFS Grafana Grub Hdparm Home Assistant How to disable SELinux Htaccess Infiniband InfluxDB InfluxDB 1.x Insert a kickstart file into a iso image Inspircd IOzone Iperf3 Ipmitool Irqbalance John The Ripper Lightdm Lm sensors Logrotate LSF LVM Lynx Mailx Md5sum Mdadm Midnight Commander Motion Mount Mutt Nomad OpenLDAP Openocd OpenSSL OpenVPN Packer PHP Pi-hole Postgres PowerBroker Identity Service Proxmox Pueue PulseAudio Puppet Quota Red Hat Satellite Restic Rsync Rtorrent Ruby Sabnzbd Sage Samba Screen Sed SELinux Sendmail Shell Configs Singularity Sleep Slurm SMART Sonarr Sqlite SquashFS Squid SSH Steam Stoken Strace Sudo Sync Sysctl Syslog Sysrq System Security Services Daemon (SSSD) Systemd Tar Tcsh Telegraf Terraform Thttpd Tmux Tomcat Top Umask Unix2dos Vim Virsh Virt-customize VirtualBox VirtualGL Visidata Vnstat Weechat Wget XFS Youtube-dl ZFS Zram

Package Management	APT Pacman RPM Yum

Linux Distributions	Alpine Linux Arch Linux CentOS Fedora NixOS Red Hat Enterprise Linux Tails Tiny Core Linux Ubuntu

Networking	Blazemeter CSF/LFD Exim Firewall FreeIPA Get DHCP Network Settings IP Aliasing Ipset IPTables IPv6 IPXE Link Aggregation Linux Network Namespaces MTU Net-tools to iproute2 Netcat Open vSwitch OpenWRT Postfix Raspberry Pi Torified Wifi Socat Static Routes StrongSwan Tcpdump Traffic Forwarder using IPTables Wi-Fi WireGuard

Containers	Docker Docker Compose Docker Swarm Helm K3s Kibana Kubernetes Mailu PKS Podman

v t e Web Related

Web Related	Amazon Web Services AngularJS CPanel CSS DirectAdmin GitLab Gogs Grafana InterWorx Let's Encrypt MediaWiki Nextcloud Node-RED NZEDb PHP Shell Exploit PHPMyAdmin Sabnzbd Semantic Wiki Sick Beard SolusVM Sonarr StealRat Botnet Tor Traefik WordPress Wordpress Hacks

v t e Tinkering

Tinkering	555 Timer 6502 852D+ Soldering Rework Station AD9833 Arduino Arduino Mega 2560 ArduinoJson ASCII Table ATtiny85 Batteries Components Dancing Cactus DPS5005 Electronics Entropy Source using RTL-SDR Epson POS ESP32 ESP8266 Fake LM741 Fake W65C02 FPGA Gosund KS602 Gosund WP5 HD44780 LCD IR Codes Lava Lamp LCR-TC1 Meraki MS220-8P MH-Z19 Carbon Dioxide Sensor Node-RED OpenDPS PMSA003A Dust Sensor Prolific PubSubClient Radio Raspberry Pi RC522 RFID Module Rooting the Meraki MS220-8P Rotary Encoder RS232 Relay Sensors Serial Smart Meters Tasmota Text Encoding Tondaj SL-814 Tuya WiFi Smart Plug VHDL WiFiManager Wire Gauge Wyze Cam

3D Printing	3D Printing 3D Printing Filaments Anycubic Mega S

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