To solve this problem, you can run: ssh-add
sign_and_send_pubkey: signing failed: agent refused operation – SOLVED
Get Chat Id of Telegram user
The first step is to get the API token for you bot. See this guide on how to do this. Next, navigate the following URL, replacing YOUR_BOT_API_TOKEN with the token…
Delete files older than x many days Ubuntu Terminal
To delete files older than 'x' many days, you can execute the following command in the terminal: find /path/to/ -type f -mtime +7 -name '*.zip' -execdir rm — '{}' ;…
WooCommerce only show "completed" orders in reports
By default WooCommerce reports consider "on hold", "processing", and "completed" statuses as successful sales in the reports. I personally think only the "completed" status should be considered as a successful…
Locate spam scripts in Exim WHM
From time to time you might find that some scripts have been compromised for a particular user's website (WordPress, Joomla, etc). To identify the directory from where these scripts are…
unifi db – DbServer stopped – Unifi controller solved
A nice simple fix from SYSADMIN: sudo rm -f /usr/lib/unifi/bin/mongod sudo nano /usr/lib/unifi/bin/mongod Paste the following in the mongod file: #!/bin/bash exec /usr/bin/mongod ${*//–nohttpinterface/} Save the file and add permissions…
Setup LetsEncrypt with Nginx on Ubuntu
The first step is to add the certbot repo: sudo add-apt-repository ppa:certbot/certbot Next, update the package list: sudo apt-get update Next, install Certbot's Nginx package: sudo apt-get install python-certbot-nginx Next,…
Setup Tomcat 8 with Nginx on Ubuntu
Setting up Tomcat 8 with Nginx is very straight forward. sudo nano /etc/nginx/sites-enabled/default Search for the following text with CTRL + W location / And add the following line of…
Edit PDF invoice WHMCS
WHMCS generated invoices are neat and professional, though sometimes it is useful to be able to add or edit information to/on these PDF invoices. The file that needs to be…
Load website header/menu dynamically on multiple pages
So you've got a website consisting of multiple pages and you're tired of changing the links and information in the header/menu on each and every page. A neat solution is…









