Posts in Category: linux

Java SDK

Install Java JDK on CentOS?

Install Java JDK (Java SE Development Kit)

Java JDK: Java bundle for software developers, incorporates a complete JRE in addition to apparatuses for creating, investigating, and observing Java applications..

First of all, attempt to see if you have the correct repository:

# yum search java | grep 'java-'

This is going to return

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How To Use chmod and chown Command

How To Use chmod and chown Command

chown: to change file owner and group information.
chmod: to change file access permissions such as read, write, and access.
 

chown command

to changes the user and/or group ownership of for given file. The syntax is:

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Install vsftpd on CentOS 7

Install and Configure vsftpd on CentOS 7

FTP (File Transfer Protocol) is the most popular method of uploading files to a server; a wide array of FTP servers, such as vsftpd, and clients exist for every platform.

Step 1: Install vsftpd
Warning: FTP data is insecure; traffic is not encrypted, and

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Enabling and Disabling SELinux

Use the getenforce or sestatus commands to check the status of SELinux. The getenforce command returns Enforcing, Permissive, or Disabled.
The sestatus command returns the SELinux status and the SELinux policy being used:

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Snoopy Logger

Snoopy Logger

Snoopy is a tiny library that logs all executed commands (+ arguments) on your system, and can be installed by:

The easiest way to start using Snoopy is to execute one of the following commands (as root).

To install the latest STABLE version of Snoopy, use this command:

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PHP Trader

Trader PHP extension

Trader PHP extension

The Trader extension is a free open source stock library, based on TA-Lib. It’s dedicated to trading software developers requiring to perform technical analysis of financial market data. Alongside many indicators like ADX, MACD, RSI, Stochastic, TRIX the candlestick pattern recognition and several vector arithmetic, and algebraic functions

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Install FTP

Install FTP Server On CentOS 7

Install FTP on Linux

vsftpd (Very Secure File Transport Protocol Daemon) is a secure, fast FTP server for Unix/Linux systems.
To install FTP server on CentOS 7:
(testbox server hostname and IP Address are server.my.local and 192.168.1.101/24 respectively.)

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MySQL

Enable remote MySQL connection

Remote MySQL

As root, apply:

GRANT ALL PRIVILEGES ON *.* TO 'USERNAME'@'IP' IDENTIFIED BY 'PASSWORD';

where IP is the IP you want to allow access and USERNAME is the user you use to connect.

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Log all commands executed, including command line arguments?

There is a kernel facility: the audit subsystem. The auditd daemon does the logging, and the command auditctl sets up the logging rules. You can log all calls to a specific system alls, with some filtering. If you want to log all commands executed and their arguments, log the execve

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