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Showing posts from March, 2019

Free Software Foundation

Richard Stallman founded the Free Software Foundation in 1985 to support the free software movement, promoting the universal freedom to study, distribute, create and modify computer software.

QubesOS: TemplateVM

Reinstall TemplateVM fedora-29 Something is wrong with fedora-29 TemplateVM after running update. Because I am learning by playing with Qubes OS, so I just reinstall the fedora-29 TemplateVM. [tuyen@dom0 ~]$ sudo qubes-dom0-update qubes-template-fedora-30 Using sys-whonix as UpdateVM to download updates for Dom0; this may take some time... fedora/metalink | 5.8 kB 00:00 fedora | 4.3 kB 00:00 fedora/primary_db | 26 MB 00:31 qubes-dom0-current/metalink | 2.7 kB 00:00 qubes-dom0-current | 3.8 kB 00:00 qubes-dom0-current/primary_db | 2.1 MB 00:02 qubes-templates-itl/metalink | 2.7 kB 00:00 qubes-templates-itl | 3.0 kB 00:00 qub

Book: C Programming Language First Edition

Download C Programming Language First Edition by Dennis Ritchie, Brian Kernighan.

Youtube video unavailable: This video is restricted

I ran into this error while watching video in an edX course. Video unavailable. This video is restricted. Try signing in with a Google Apps account. So I try using Mozilla Firefox ESR Portable Edition . It works!

Qubes OS

From Qubes website, Qubes OS is a security-oriented, free and open-source operating system for personal computers that allows you to securely compartmentalize your digital life.

Markdown Notes

Learn the basics of Markdown, the lightweight markup language with plain text formatting syntax.

Ways to Send Large Files

Firefox Send Firefox send is a fully encrypted, free file sharing tool that allows you to send files through a safe, private link that you control Source: Use Firefox Send to safely share files for free

Linux command: history

history - recall lines of previous typed input

Synology: PXE Server - Add memtest86+

I sometimes need to check memory, so I add memtest86+ 5.01 as a choice to my existing PXE Server on Synology Diskstation.

Synology: Commonly Used Commands

Commonly used commands via ssh with Synology NAS.

ASUS: How to Enter BIOS

Press and hold F2, then press the POWER button.

Linux DHCP Client - dhclient

NAME dhclient - Dynamic Host Configuration Protocol Client SYNOPSIS dhclient [ -4 | -6 ] [ -S ] [ -N [ -N... ] ] [ -T [ -T... ] ] [ -P [ -P... ] ] -R ] [ -i ] [ -I ] [ -4o6 port ] [ -D LL|LLT ] [ -p port-number ] [ -d ] [ -df duid-lease-file ] [ -e VAR=value ] [ -q ] [ -1 ] [ -r | -x ] [ -lf lease-file ] [ -pf pid-file ] [ --no-pid ] [ -cf config-file ] [ -sf script-file ] [ -s server-addr ] [ -g relay ] [ -n ] [ -nw ] [ -w ] [ -v ] [ --version ] [ if0 [ ...ifN ] ] DESCRIPTION The Internet Systems Consortium DHCP Client, dhclient, provides a means for configuring one or more network interfaces using the Dynamic Host Configuration Protocol, BOOTP protocol, or if these protocols fail, by stat‐ ically assigning an address. Restart DHCP Client $ sudo dhclient -r

Free eBook: Python Programming Cookbook

Author: Sebastian Vinci Download link: Python Programming Cookbook - Hot Recipes for Python Development

pfSense: Upgrade

/root: pkg update; pkg upgrade

Free eBook : The C Programming Language First Edition

Download link: The C Programming Language First Edition

Let's encrypt with nginx on RHEL 7

sudo certbot --nginx Setup for another site on the same host sudo certbot

VyOS: Upgrade system image

Let's upgrade VyOS system image 1.1.7 to 1.1.8 show system image add system image https://downloads.vyos.io/release/1.1.8/vyos-1.1.8-amd64.iso

Microsoft Exchange Server 2010

Install Microsoft Exchange Server 2010 on Microsoft Windows Server 2012 R2. Prepare Active Directory Run into error when not using /OrganizationName Check new groups added after running Setup /PrepareAD Download and install 2007 Office System Converter: Microsoft Filter Pack Install prerequistes Install-WindowsFeature NET-Framework-Core, Web-WebServer, Web-Mgmt-Console Install-WindowsFeature RSAT-ADDS, Web-Windows-Auth, Web-Basic-Auth, Web-Net-Ext, Web-Lgcy-Mgmt-Console, Web-Metabase, Web-ISAPI-Ext, RSAT-Clustering # Client Access Server role Install-WindowsFeature Web-Dyn-Compression, Web-Digest-Auth, NET-HTTP-Activation, RPC-over-HTTP-proxy Readiness Checks Add svc_exc domain account to "Organization Management" domain group. net group "Organization Management" svc_exc /add Rerun Readiness Checks

Powershell: Get-History

Get-History - Gets a list of the commands entered during the current session.

Microsoft Office 365: Compare all plans

Check Get the latest advanced features with Office 365 for the lastest update and price. Check Get Office 365 free for your entire school for Education plans.

Linux command: ls - list directory contents

ls - list directory contents

Free Shell Account

Create a free shell account to practice or demonstrate Linux/Unix commands

Xming - X Server for Microsoft Windows

Error before installing Xming PuTTY X11 proxy: unable to connect to forwarded X server: Network error: Connection refused Error: Can't open display: localhost:10.0 Let's download Xming at https://sourceforge.net/projects/xming/ and install.