News
Articles, sustainability work, and the occasional take on what it means to keep critical systems running.
Filters
Tags
Year
resize lvm
CentOS / RHEL : How To Shrink LVM Root File System – The Geek DiaryDuring system installation, one may allocate an over-generous amount of disk space to the root partition and may later wish to reclaim any unused space.…
git notes
Git setup basic git init # create a git user name git config --global user.name "FIRST_NAME LAST_NAME" git config --global user.email "MY_NAME@example.com" # create git ignore files touch .gitignore # add items to the…
Apache DocumentRoot doesn't change
Keep in mind there are usually TWO configurations for each site. Configurations for insecure connections (port 80) and secure connections (port 443). Each configuration needs to be updated with the correct DocumentRoot…
LVM snapshotting, linux undo fileystem
Undo and redo are life-savers in any app... here is how to undo a fileystem using LVM. Key points * The snapshot 'snap_lv' captured all filesystem changes on the original logical volume when the snapshot was created.…
rsync: [Receiver] mkdir "/mnt/raid" failed: Permission denied (13)
1. Make sure that the permissions are correct on the target host (root@bkp-fivemin) 2. Make sure that the folder you are targeting exists before running rsync 3. Alternatively copy the folder you want to folder to a…
Random linux notes
This post is updated continually Semi organized enlarge / shrink filesystem, different filesystems are easier/harder to extend or shrink Virsh - Virtual Machines List images on disk and see locations See disk locations…
VSCODE quickstart
default commands CTRL+SHIFT+F = search all files vscode CTRL+P = search files CTRL+SHIFT+E = open explorer settings CTRL+` (backtick) = open terminal open folder in integrated terminal
Web technologies tldr
Infrastructure Docker - tool to create reproducible containers Vagrant - abstraction for building reproducible virtual machines
Shortcut links, Ebay invocing, Microsoft Invoicing, etc
Ebay bulk listing: Security Measure ebay summaries Security Measure Ebay financial statements Security Measure ebay livechat Sign in or Register | eBayeBay livechat inc invoicing LiveChatLiveChat – online chat and help…
News Aggregator Sites
The Brutalist ReportThe day’s headlines delivered to you without bullshit.
broadband forums
International: Shaping the future of Broadband - Broadband ForumBroadband ForumThreerooms
seo tools
Google tools: PageSpeed InsightsPageSpeed InsightsGoogle Search ConsoleGebruik Search Console om zoekresultaatgegevens voor Google Zoeken bij te houden voor je property’s. "free" SEO Checker | Test your website for free…
HP Elitebook generation differances
source: https://h30434.www3.hp.com/t5/Notebook-Hardware-and-Upgrade-Questions/HP-Elitebook-what-has-G1-G2-G3-mean/td-p/6933853 The G stands for Generation. The Elitebook 850 G1 for example, has the Intel 4th gen core…
newsletter SAAS applications
adding as i find them! https://getanewsletter.com/
phpmyadmin
Phpmyadmin uses the php.ini file The php.ini file imposes restrictions on phpmyadmin. For example, uploading a large database through phpmyadmin requires php.ini "upload_max_filesize" to accomodate the size. Likewise…
webdev sites
Favicon generator Favicon Generator for perfect icons on all browsersThe ultimate favicon generator. Design your icons platform per platform and make them look great everywhere. Including in Google results…
Mysql Error 2022-03-13T12:08:03.773559Z 128 [Note] Access denied for user 'root'@'172.0.13.37' (using password: YES), docker container, escape environment variables docker
In my case the solution was simple but took some head scratching before it was obvious. I am using docker environment variables in a .env file, one of my environment variables had special characters in them "%!@". This…
Site Title, If you give a man a tutorial, you help him for a day. If you teach a man the concepts in the manpage, he helps himself for a lifetime.
I believe the old addage Give a man a fish and you feed him for a day. Teach him how to fish and you feed him for a lifetime applies to all walks of life. Including devops. Understanding the inner workings of how a…
Operations vs Options Linux TAR, Definition
Extract from the article: Linux Tar Quickstart, create and extract files from archives.The tar utility is used to work with archive files and has 8 modes of operation and several options. The most used operations are…
Dev, staging and production environments - why are they used?
Each environment isolates tools needed at different stages of the applications lifecycle. Development phase (create new features/templates) * Introduce new features * Change database schemas to accommodate new features…
tmux cheatsheet with example config
Sessions :new<CR> new session s list sessions $ name session Windows c create window w list windows n next window p previous window f find window , name window & kill window Panes % vertical split " horizontal split o…
Överskottslager länkar
Militärfärg - Armystuff.seHär finns olika färger till fordon med militär anknytning .Målarfärg och sprayfärgerNORRBOTTENS SKOGSTEKNIK HANDELSBOLAG
News sites list
https://liveuamap.com
SSH config file template
Make sure permissions are correct on ssh config # create config file touch ~/.ssh/config chmod 600 ~/.ssh/config SSH config examples Host fivemin HostName 10.13.37.5 User five Port 22 IdentityFile ~/.ssh/fivemin.key…
/usr/bin/ssh-copy-id: ERROR: failed to open ID file
SSH-COPY-ID is unable to find the public and private key pair ... If you renamed the default id_rsa to mykey.key, try to remove the ".key" part of the filename and re-run the command. An alternative is to use the -f…
fun ansible errors
"Using a SSH password instead of a key is not possible because Host Key checking is enabled and sshpass does not support this. Please add this host's fingerprint to your known_hosts file to manage this host" Alternative…
Vanity domains in Microsoft sharepoint - Can i change onedrive share links to custom url if i have "Microsoft Business Basic"?
Question: Can i change URLs ? From: https://MYCOMPANY.sharepoint.com/:w:/r/personal/my_custom_dns/15/Doc.aspx to: https://MYCOMPANY.com/:w:/r/personal/my_custom_dns/15/Doc.aspx Answer: Nope! Not possible.. copy paste…
Your OneDrive is not set up Before you can use Word. First you need to go set up your OneDrive. ERROR, FIX solution
We recently changed to a custom domain in microsoft teams. After doing this we were unable to edit word documents. If you are unable to create .word/other documents on office.com after signing in to your "Microsoft…
Most used linux commands and CLI tools
this article is being updated. .. Basic commands (must know) pwd ls cd chown chmod ps -aux useradd -aG wheel [user] cat less | piping Networking related commands (must know) ip a (previously ifconfig) ip link ip route…
thunderbird resync folders and subfolders solution (images)
Thunderbird folder synchronization between different host systems can get out of sync at times, see below for a solution to re-syncing your folders and subfolders Useful links: How can I force Thunderbird to reload IMAP…
Networking humour and jokes
I will tell you a joke about UDP, but i’m not sure you will get it. The problem with UDP jokes is that I don't get half of them! I would counter with an HTTP joke but I am feeling slightly insecure.
List of web3 tools for coins and NFTs
WEB3 is coming! Here is a list of tools Gas Trackers * https://ethgas.watch/ Revoke Permissions * https://etherscan.io/tokenapprovalchecker * https://revoke.cash/ Automated Market Makers * Metamask Wallet integrated…
Show SFP transceiver details for all switches, gigabit, 10gigabit etc
Huawei display version display transceiver interface XGigabitEthernet 0/0/1 verbose display transceiver verbose Aruba show interface transceiver detail show interfaces transceiver show version Cisco sh version sh idprom…
Exclude my host from tcpdump
Connecting to a host through ssh and monitoring the connection with tcpdump spews out a lot of information. Say that we have a peculiar situation, we want to monitor ssh traffic on the server, but not our connection…
Terminal vs Console vs Shell visualized
User └── terminal └── virtual-terminal (tmux, screen, etc) └── console ├── console is always closest to the shell └── shell └── kernel └── hardware wrapped around the hardware and kernel is the shell which exposes…
"finding the right manpage is what you pay a sysadmin to do"
nmconnection vs link vs ifcfg files
WTF is the difference between .nmconnection .link and ifcfg-* files ? /etc/NetworkManager/system-connections/*.nmconnection = network manager configuration keyfiles…
SteamVR cant click the settings button
Try to reinstall the application Launch the application again Connect your headset to see all settings Disable steamVR home (lags alot)