Server Upgrade this week

A message from the Administrators:

Hello Everyone:

Just a heads up that we will be migrating Electro-Tech-Online.com to a new bigger faster web server this week and there may be spotty outtages especially when the DNS is updated. I am aiming to have everything migrated by end of day Wednesday.

Click to expand...

Hopefully this will go smoothly with a minimum of disruption, but there is always the "oooh! I never thought of that!" waiting to catch you out.

JimB

Do the Admin have their location filled in so we know when the end of Wednesday is?

Mike.

Nope... But his IP resolves to Ohio...

Wednesday EST

JimB said:

"oooh! I never thought of that!" waiting to catch you out.

JimB

Click to expand...

Black Swans... https://en.wikipedia.org/wiki/The_Black_Swan_(Taleb_book)

Good Morning everyone...

The migration is finishing up. All the HTML & images was moved overnight. I locked down the form on the older server and did a database backup and copied that over to the new server. Once the database was up and I could verify the server was running correctly on the new server I flipped over the DNS to point to the new IP address 67.227.167.4 and verified the change too https://www.whatsmydns.net/#A/www.electro-tech-online.com (Hello Sydney?)

A previous migration exposed an issue with LaTex and I knew there would be problems this time... and I just spent about an hour debugging LaTex and fixed it by rolling back the version included with the new server. Side note... The LaTex editor wasn't working on the old site either...
Now when you click

things will work nice.. Just remember to wrap formulas with the latex command

[latex]\left[ latex \right] latex stuff here\left[ /latex \right][/latex]

[latex]\frac{d}{dx}\left( \int_{0}^{x} f(u)\,du\right)=f(x).[/latex]

If you're still hitting the old site the DNS might be cached locally.

Try flushing DNS if you can... on Chrome / Chromium try this

chrome://net-internals/#dns

Windows might need a reboot... can't remember it's been so long since I used it ..