Categories
Apple User Help

MacBook Pro 15 slow after reset, Console full with errors

Over the last two weeks, my MacBook decided to stop loading pages with the error "server cannot be contacted". As it has been some time, I finally decided to reset the whole thing. It is a complete fresh install. However, again, it is incredible slow, laggy, network is sometimes not working, animations are lagging and […]

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User Help

“Upload” pipe as if it were a regular file

Suppose I want to tar and compress a file for upload to Google Drive or something, but all without ever saving an intermediate tarball (e.g. because of a lack of disk space and/or the disk is read-only). Sounds easy with the help of named file descriptors and command substitution, right? exec {foo}< <(tar -c -z […]

Categories
CMS Drupal Mastering Development

403 Access Denied only on homepage as anonymous, but page displays for all users

I have inherited a very old, oddly customized Drupal 6 website here http://thomascranelibrary.org/. I would like to create a static copy of the site and send it into retirement, but the 403 error is preventing me from running a wget against it. The landing page reports a 403 Forbidden error and the head title reports […]

Categories
Linux Mastering Development

How can I fix problems that Pulseaudio has with a bluetooth headset bound to two separate devices

I have a Sennheiser bluetooth headset that can pair to two separate devices at once. So, typically I have it paired to two Linux laptops, or to one laptop and one Android phone. I have music playing from one of the laptops, and then the other device, whether laptop or phone, will typically send a […]

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User Help

mdadm – Raid 1 arrays do not assemble after reboot

I rebooted my server after creating 3 raid 1 arrays with mdadm, and after rebooting, systemd was spitting out errors about the raid devices timing out when trying to assemble them at boot. I was given an option to enter the root password for maintainance, which I have done. I tried running mdadm –assemble –scan […]

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User Help

DELL 15 7559 TURN OFF RANDOMLY

I have a Dell Inspiron 15 7559, everything went well until I upgrade RAM MEMORY from 8GB to 16Gb (2x8gb). After I did that, my computer started to "get buggy". First, it didn’t want to turn on, I remove the CMOS BATTERY and put it again to reset BIOS, and then it worked fine. But […]

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User Help

How to have “Excel for Mac 2016” Auto-convert entry of yymmdd to yyyy-mm-dd

I want to type, say, 20201008 or 201008 into a cell and as soon as I press  the enter or tab key have "Excel for Mac 2016" immediately convert and display either entry as 2020-10-08. 
 I don’t want to have another column set up that uses a formula to convert 20201008 or 201008 to […]

Categories
Mastering Development

I cannot delete files in a directory

I was trying to install .net core for 32 bit linux, which i later found out was impossible. Now, i am left with a pesky coreclr/cross/rootfs……. folder. I have tried to rm -rf the folder as root, but i get tons of operation not permitted and access denied errors. I have tried to chown the […]

Categories
Mastering Development System & Network

multiple NIFI instances running behind one NGINX reverse proxy

I have 2 NIFI instance on differents servers with 1 NGINX reverse proxy in front. It should go like this: NGINX Reverse proxy > proxy.lan/nifi1 goes to the NIFI 1 instance on nifi1.lan NGINX Reverse proxy > proxy.lan/nifi2 goes to the NIFI 2 instance on nifi2.lan NGINX reverse proxy runs on 192.168.1.114:80 NIFI runs on […]

Categories
Linux Mastering Development Ubuntu

Lenovo Thinkpad Yoga dock stopped working for ubuntu 20.04

I’m a large linux noob so please forgive me there. I’m a recent linux convert and I’m running Ubuntu 20.04 on my Lenovo Thinkpad Yoga. I have a docking station for it that I use for usb ports, the headphone jack, and a second monitor, which connects to the dock’s DVI input. It stopped working […]