How to install OSSEC in CentOS and how to install the wireless network card

php editor Strawberry will introduce to you how to install OSSEC and wireless network card on CentOS. OSSEC is an open source intrusion detection system that can monitor the security status of servers in real time. The steps to install OSSEC on CentOS are relatively simple, just follow the official documentation guidelines. For the installation of wireless network cards, you need to first determine the network card model, and then use commands to find the corresponding driver and install it. You may encounter some problems during the installation process, but as long as you follow the correct steps, you can successfully install OSSEC and wireless network cards. Next, we will introduce the installation steps and solutions to common problems in detail.

CentOS installation OSSEC

1. Make sure your CentOS system is connected to the Internet and has root permissions.

2. Open a terminal and run the following command to install the dependencies of OSSEC:

```

yum install openssl-devel zlib-devel

3. Download the OSSEC installation package. You can download the latest stable version from the OSSEC official website.

4. Unzip the downloaded installation package and run the following command:

tar -zxvf ossec-hids-.tar.gz

5. Enter the decompressed directory:

cd ossec-hids-

6. Run the installation script:

./install.sh

7. During the installation process, you need to follow the prompts Configuration, you can choose a default configuration or a custom configuration.

8. After the installation is complete, you can start the OSSEC service by running the following command:

/var/ossec/bin/ossec-control start

9. You have now After successfully installing OSSEC and launching it, you can access OSSEC's web interface by visiting.

CentOS Install Wireless Network Card

2. Open the terminal and run the following command to install the wireless network card tools:

yum install wireless-tools

3. Run the following command to view the available wireless network cards in the system:

iwconfig

4. Find the interface name of the wireless network card you want to install. Normally, the interface name of the wireless network card starts with "wlan "beginning.

5. Run the following command to edit the network configuration file:

vi /etc/sysconfig/network-scripts/ifcfg-

Replace "" with the wireless The interface name of the network card.

6. Add the following lines to the file:

TYPE=Wireless

BOOTPROTO=dhcp

ONBOOT=yes

7. Save and close the file.

8. Run the following command to restart the network service:

systemctl restart network

9. You have now successfully installed the wireless network card and can use the network management tool or command OK to connect to the wireless network.

Share for you

In LINUX, you can use the "tail" command to view the last few lines of the file. To view the last 10 lines of the file "example.log", you can run the following command :

```

tail -n 10 example.log

This is useful when viewing log files or monitoring real-time logs.

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