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CentOS Nginx error: could not open error log file: open() “/usr/share/nginx/logs/error… denied

phptuts October 12, 2022

Check status of service nginx: systemctl status nginx.service and we see error: How to fix this error: Method 1: disable SELinux edit file /etc/selinux/config Change…

Ubuntu 20.04: install MongoDB Driver for Lua – part 2

phptuts October 6, 2022

Part 2 install specific version of lua-mongo Example we install version 1.1.0 Follow step 1 and 2 in part 1 : Ubuntu 20.04: install MongoDB…

Ubuntu 20.04: setup MongoDB Replica Set

phptuts October 3, 2022

Example we install MongoDB v5.0 We have 4 servers : 167.235.17.110 167.235.17.111 167.235.17.112 167.235.17.113 Install MongoDB v5.0 on each server Step 1*: sudo apt-get install…

How to convert DAA file to ISO file

phptuts September 26, 2022

Step 1: Run UltraISO. Step 2: Choose “Tools > Convert” Menu. Step 3: UltraISO shows Convert dialog. Choose the source DAA file you want to…

Windows: how to install sshpass

phptuts July 29, 2022

Use Cygwin

WebRTC error: RTCDataChannel send queue is full

phptuts July 23, 2022

How to fix error: RTCDataChannel send queue is full Original code: example: simple-peer Fixed code:

Get Facebook access token full permissions – 2022

phptuts July 16, 2022

Step 1. Open your browser like Google Chrome, Mozila Firefox Step 2. Open dev tools (F12) Step 3. Go to tab: console Step 4. Paste…

CentOS: install google chrome

phptuts July 2, 2022

Step 1: install dependencies : liberation-fonts vulkan-devel xdg-utils Step 2: install google chrome

Google OAuth2: Why don’t I get refresh token

phptuts June 25, 2022

Example google authorization url: We dont get refresh token: The refresh_token is only provided on the first authorization from the user. Subsequent authorizations, such as…

Linux command sum numbers in a file

phptuts June 23, 2022

Example we have file stream.m3u8 with content How to calculate sum of duration of all segments