How to Install and Configure VNC on Ubuntu 20.04
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Linux
About Linux
Get Around Linode Blocking SMTP
You need an internet host without SMTP blocked like your home internet service. The idea is to use it as a relay on a different port like 225 which isn’t blocked. Setup your localhost to deliver your email. Setup a port forwarding on your router. I used port 225 on the outside to port 25
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Apt Playbook
I use ansible to keep all my computers consistent and install the same packages on all the systems. First I install my ssh key. Then I allow the sudo group to run sudo without supplying a password. Then I run the following ansible playbook (of course the ip address OR ‘HOSTS’ is assigned by DHCP):
Changing the Date Format on Posts
It was harder to do than you might think. As it turns out, it was hard-code in the theme. So I grep’d recursively for “(‘d.m.Y’)”. Thanks to google I knew what to search for. I was using the shiny-blog theme. I found it in single.php and content.php. It was in two places, one for displaying
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Avahi mDNS issue
Two copies of the same share would show up when I browsed the network. I added the following: to I found this link that told me what to do: https://askubuntu.com/questions/1138394/seeing-ubuntu-server-19-04-twice-on-clients-probably-avahi-mdns-issue
Firefox and kernel updates
Ok so two things. Firefox ESR and mainline. If you are on an unsupported version of ubuntu, like my web server which hosts other peoples stuff, and cannot upgrade. You can keep the kernel up-to-date with mainline. https://github.com/bkw777/mainline/releases/ It parses the ubuntu kernels from the from the Ubuntu archive and lets you select one and
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old-releases.ubuntu.com
I found a page that showed me how to update the /etc/apt/sources.list file to support ubuntu 19.04 – codename disco which is EOL. https://zzz.buzz/notes/ubuntu-releases-and-apt-sources/
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NFS V4 with root
I followed this site: https://help.ubuntu.com/community/SettingUpNFSHowTo I set everything up as recommended. But I was unable to change the permissions. I was using sudo rsync -azv So, after a bit of googling I changed /etc/exports /export 192.168.1.0/24(rw,fsid=0,insecure,no_subtree_check,async) /export/backup 192.168.1.0/24(rw,nohide,insecure,no_subtree_check,async) /export 192.168.1.0/24(rw,insecure,no_subtree_check,async,no_root_squash) /export/backup 192.168.1.0/24(rw,nohide,insecure,no_subtree_check,async,no_root_squash) The key was no_root_squash Then I could read and write as root.
Convert a Portrait Video into Landscape with ffmpeg
Susan had two videos in portrait format that needed to be in landscape per requirement. I used this page: https://www.rigacci.org/wiki/doku.php/doc/appunti/linux/video/fix_smartphone_portrait_videos I set offset_y=0.0 and crop_aspect=1.0. Here are the finished videos uploaded to Youtube.
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