Da Ma Cai 大马彩 API
TL;DR Scarp draw result, host on GitHub, retrieve it like API at damacai.hongineer.com. Data Scraping I have previously shared a technique for scraping Da Ma Cai draw result. Now I finally have time t
Feb 26, 20261 min read13
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Monitor MySQL Replication Status with a Bash Script
This is a Bash script that check if the replica (slave) health status. If there is an issue, it will exist with non-zero status. This is useful when used with monitoring tools like [Monit](https://mmo
Feb 24, 20262 min read15
Cheatsheet & Examples: chmod
chmod is a command-line utility used to change the access permissions of file system objects such as files and directories. It allows you to control who can read, write, and execute those objects. Changing Permissions Using Octal Notation Example Usa...
Jan 23, 20263 min read9Cheatsheet & Examples: chown
chown changes the ownership of files and directories. This involves modifying the user and/or group associated with a file, determining who has access and permissions. Changing File Ownership to a Specific User Example Usage: chown user file.txt What...
Jan 20, 20263 min read6Cheatsheet & Examples: usermod
The usermod command modifies a user account's properties on a Linux system. It allows administrators to change various attributes associated with a user, such as the user's login name, home directory, shell, groups, and password expiry information. C...
Jan 16, 20263 min read10Cheatsheet & Examples: tcpdump
tcpdump is a powerful command-line packet analyzer used to capture network traffic passing through a network interface. It allows you to monitor and diagnose network issues by displaying the contents of network packets. Capturing all traffic on an in...
Jan 13, 20264 min read2Cheatsheet & Examples: nmap
nmap is a powerful network scanning tool used to discover hosts and services on a computer network by sending packets and analyzing the responses. It's widely used for network inventory, managing service upgrade schedules, and monitoring host or serv...
Jan 9, 20264 min read9Cheatsheet & Examples: scp
scp (secure copy) is a command-line utility used to securely transfer files and directories between a local host and a remote host or between two remote hosts. It uses the Secure Shell (SSH) protocol for secure data transfer, encrypting the data duri...
Jan 6, 20265 min read6Cheatsheet & Examples: traceroute
Traceroute is a network diagnostic tool used to trace the path packets take from a source to a destination IP address or hostname. It displays the sequence of routers (hops) traversed, along with the round-trip time (RTT) for each hop. This informati...
Jan 2, 20263 min read9