IT Archives - LarryLai

Port Forwarding Issue – Netgear Nighthawk

Post author:larry
Post published:Jul 15, 2020
Post category:IT
Post comments:0 Comments

BackgroundThis morning when accessing YouTube from TV, there's no response. Found that the reason was internet access failure though WiFi connection was fine. Then some other things got wrong due…

Make Phone Calls on Mac

Post author:larry
Post published:Jul 13, 2020
Post category:IT
Post comments:0 Comments

Issue: When trying to use FaceTime on iMac to make phone calls through iPhone, there is an issue to connect the iPhone with the Mac. Even though these 2 devices…

Google Site Kit All Blank in WP

Post author:larry
Post published:May 12, 2020
Post category:IT
Post comments:0 Comments

Background: Google Site Kit plugin for WordPress is no doubt a comprehensive site performance plugin delivering promised all-in-one dashboard also with colourful layout. Issue: Using Google Site Kits plugin for…

SSL Key Ownership

Post author:larry
Post published:Feb 9, 2020
Post category:IT Application Software Tools
Post comments:0 Comments

Issue: After receiving renewal notice from Let's Encrypt for Jupyter server, go to the virtual machine hosting Jupyter and renew the key successfully. But cannot login to the jupyter notebook…

CSS List item style a) b)

Post author:larry
Post published:Jan 7, 2020
Post category:IT Software Web Development
Post comments:0 Comments

Issue Default ordered list item style is decimal number, lower/upper alpha, lower/upper roman then followed by a dot. Thought it's easy to change the dot to something like a)…

MathJax Load Failed – WP Security Plugin

Post author:larry
Post published:Nov 14, 2019
Post category:IT Application CMS Software
Post comments:0 Comments

Issue After installing a WordPress security plugin call All-In-One WP Security, MathJax failed to load some JS including. Solution In the setting of the plugin, choose the tab Additional Firewall…

CentOS VM Client Can’t Boot Up

Post author:larry
Post published:Aug 30, 2019
Post category:IT Cloud Linux OS Software System Virtualization
Post comments:0 Comments

Issue VirtualBox client CentOS can't boot up with error message: [FAILED] Failed to start Virtual Machine and Container Registration Service. [FAILED] Failed to start Login Service. Solution Disable SELINUX config…

Jupyter Notebook on Boot Automatically

Post author:larry
Post published:Aug 16, 2019
Post category:IT Middleware Software
Post comments:0 Comments

Issue After making the file to create a system service for jupyter notebook running on CentOS so as to start jupyter server automatically during system start up, the service successfully…

PHP 7

PHP 7 & Related Issues

Post author:larry
Post published:Mar 12, 2019
Post category:IT Middleware Software Uncategorized
Post comments:0 Comments

Background After installing a WordPress plugin - WP Health, it's reminded that PHP5 had no longer been supported since late 2018, thus there may be risk in all WordPress websites.…

Centos7 Virtualmin Upgrade PHP7 MariaDB

Post author:larry
Post published:Feb 28, 2019
Post category:Cloud CMS IT Software System Uncategorized Virtualization
Post comments:0 Comments

This is my first blog after upgrading to WordPress 5.1 from ver.4.8. Yes, I never tried 5.0 as it's always risky to have a major upgrade to ver. x.0. The…