Memcached is a high-performance, distributed memory object caching system used to speed up dynamic web applications by alleviating database load. In this guide, we will walk through the steps to install Memcached on Alma Linux 8.
Step 1: Update Your System
Start by ensuring your system is up to date:
sudo dnf update
Step 2: Install Memcached
To install Memcached, use the following command:
sudo dnf install memcached libmemcached
Step 3: Configure Memcached
Open the Memcached configuration file to adjust settings:
sudo nano /etc/sysconfig/memcached
In this file, you can configure various options such as:
- PORT: The port on which Memcached listens (default is 11211).
- USER: The user under which Memcached runs.
- MAXHEAP: The maximum amount of memory to allocate (default is 64MB).
For example, you can change the default memory allocation by modifying the line:
OPTIONS="-m 512"
Step 4: Start Memcached
Start the Memcached service with the following command:
sudo systemctl start memcached
To ensure Memcached starts on boot, run:
sudo systemctl enable memcached
Step 5: Configure Firewall (If Applicable)
If you have a firewall running, allow traffic on the Memcached port (default 11211):
sudo firewall-cmd --permanent --add-port=11211/tcp
sudo firewall-cmd --reload
Step 6: Test Memcached Installation
To verify that Memcached is running, you can use the following command:
echo "stats" | nc localhost 11211
This command should return various statistics about the Memcached server.
Step 7: Use Memcached with Your Applications
Integrate Memcached into your applications to cache data. You can use various libraries available for PHP, Python, Node.js, and more to connect to Memcached.
Conclusion
You have successfully installed Memcached on Alma Linux 8. This powerful caching system can help improve the performance of your web applications.
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