In this week’s feature highlight, we look at How to Enable BBR on Ubuntu 23.04
BBR stands for Bottleneck Bandwidth and RTT is a congestion control system. You can enable TCP BBR on your Linux desktop to improve the overall web surfing experience. By default, Linux uses the Reno and CUBIC congestion control algorithm.
Enabling BBR in Linux can help improve network performance by optimizing bandwidth utilization, reducing latency, and mitigating packet loss. We’ll show you how this is enabled:
Run the following command to check available congestion control algorithms,
In this week’s feature highlight, we look at How to Install WordPress with LEMP Stack on Ubuntu 23.04
WordPress is one of the most popular website-building tools available out there. It is a simple way to get your online presence and perfect for those who do not know how to code and want a simple and effective way to share and build your story on the internet.
Next, create a new MySQL user account that we will use to operate on WordPress’s new database, with the username “wordpress_user”.
CREATE USER 'wordpress_user'@'localhost' IDENTIFIED BY 'password';
Note: Replace “password” with a safe and secure password when creating the wordpress_user
Link the user and DB together by granting our user access to the database.
GRANT ALL PRIVILEGES ON wordpress_db.* to wordpress_user@'localhost';
Flush the privileges so that MySQL knows about the user permissions we just added.
FLUSH PRIVILEGES;
Exit out of the MySQL command prompt by typing.
exit
Output:
root@crown:~# mysql
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 81
Server version: 10.6.7-MariaDB-2ubuntu1 Ubuntu 23.04
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]> CREATE DATABASE wordpress_db;
Query OK, 1 row affected (0.003 sec)
MariaDB [(none)]> CREATE USER 'wordpress_user'@'localhost' IDENTIFIED BY 'password';
Query OK, 0 rows affected (0.005 sec)
MariaDB [(none)]> GRANT ALL PRIVILEGES ON wordpress_db.* to wordpress_user@'localhost';
Query OK, 0 rows affected (0.003 sec)
MariaDB [(none)]> FLUSH PRIVILEGES;
Query OK, 0 rows affected (0.003 sec)
MariaDB [(none)]> exit
Bye
Remove default Nginx server blocks to prevent Nginx automatic requests routing.
rm /etc/nginx/sites-available/default
Set up SSL Certificate
Run the command to install certbot specific to Nginx
snap install --classic certbot
Run this command to get a certificate and have Certbot edit your Nginx configuration automatically to serve it, turning on HTTPS access in a single step.
IMPORTANT NOTES:
- Congratulations! Your certificate and chain have been saved at:
/etc/letsencrypt/live/wp.domainhere.info/fullchain.pem
Your key file has been saved at:
/etc/letsencrypt/live/wp.domainhere.info/privkey.pem
Your cert will expire on 2020-09-05. To obtain a new or tweaked
version of this certificate in the future, simply run certbot again
with the "certonly" option. To non-interactively renew *all* of
your certificates, run "certbot renew"
- Your account credentials have been saved in your Certbot
configuration directory at /etc/letsencrypt. You should make a
secure backup of this folder now. This configuration directory will
also contain certificates and private keys obtained by Certbot so
making regular backups of this folder is ideal.
- If you like Certbot, please consider supporting our work by:
Donating to ISRG / Let's Encrypt: https://letsencrypt.org/donate
Donating to EFF: https://eff.org/donate-le
You will receive this acknowledgement that the SSL certificate for wp.domainhere.info and www.wp.domainhere.info are successfull.
You can now verify your website using https:// that the connection is secure with the lock icon in the usrl bar.
Confirm that the configuration is all OK and there are no errors.
nginx -t
you would see an output like below:
root@vps:~# nginx -t
nginx: the configuration file /etc/nginx/nginx.conf syntax is ok
nginx: configuration file /etc/nginx/nginx.conf test is successful
Now that the configuration has no errors, restart the web server:
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Here are the benchmarks results of the AMD Ryzen 9 7950X processer and other previous versions,
AMD Ryzen 9 7950X
AMD Ryzen 9 3950X
AMD Ryzen 9 5950X
Turbo Speed
Up to 5.7 GHz
Up to 4.7 GHz
Up to 4.9 GHz
Cache
L1: 1,024KB L2: 16.0MB L3: 64MB
L1: 1,024KB L2: 8.0MB L3: 64MB
L1: 1,024KB L2: 8.0MB L3: 64MB
Socket Type
AM5
AM4
AM4
CPU Mark (% diff. to max in the group)
63638 (0.0%)
38982 (-38.7%)
45916 (-27.8%)
Single Thread Rating (% diff. to max in the group)
4327 (0.0%)
2710 (-37.4%)
3470 (-19.8%)
Max TDP
170W
105W
105W
# of Physical Cores
16 (Threads: 32)
16 (Threads: 32)
16 (Threads: 32)
Clockspeed
4.5 GHz
3.5 GHz
3.4 GHz
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Hello, In this week’s feature highlight, we look at How to Install Docker On Ubuntu 23.04
What is docker?
Docker is basically a container engine which uses the Linux Kernel in order to create the containers on top of an operating system. Which is used to create, deploy and run the applications.
If you want to add a different user, replace $USER with existing username.
Check docker version,
docker --version
Ouput:
root@ubuntu:~# docker --version
Docker version 20.10.21, build 20.10.21-0ubuntu3
Test docker using the hello-world container.
docker run hello-world
Output:
root@ubuntu:~# docker run hello-world
Unable to find image 'hello-world:latest' locally
latest: Pulling from library/hello-world
2db29710123e: Pull complete
Digest: sha256:4e83453afed1b4fa1a3500525091dbfca6ce1e66903fd4c01ff015dbcb1ba33e
Status: Downloaded newer image for hello-world:latest
Hello from Docker!
This message shows that your installation appears to be working correctly.
To generate this message, Docker took the following steps:
1. The Docker client contacted the Docker daemon.
2. The Docker daemon pulled the "hello-world" image from the Docker Hub.
(amd64)
3. The Docker daemon created a new container from that image which runs the
executable that produces the output you are currently reading.
4. The Docker daemon streamed that output to the Docker client, which sent it
to your terminal.
To try something more ambitious, you can run an Ubuntu container with:
$ docker run -it ubuntu bash
Share images, automate workflows, and more with a free Docker ID:
https://hub.docker.com/
For more examples and ideas, visit:
https://docs.docker.com/get-started/