2. RTI APT Repository

An APT (Advanced Packaging Tool) repository is a collection of packages that can be read by Debian-based Linux systems. RTI’s APT repository enables you to install Connext using a Debian package. Installation packages are available for Connext versions 6.1.2 LTS through 7.3.0 LTS.

2.1. Enable Repository Access

Before you can install Connext using a Debian package, you must first enable access to the RTI APT repository:

Download the public key for the RTI APT repository:

sudo curl -sSL -o /usr/share/keyrings/rti-official-archive.gpg \
  https://packages.rti.com/deb/official/repo.key

Create a configuration file to point apt to the right repository for your system:

printf -- "deb [arch=%s, signed-by=%s] %s %s main\n" \
  $(dpkg --print-architecture) \
  /usr/share/keyrings/rti-official-archive.gpg \
  https://packages.rti.com/deb/official \
  $(. /etc/os-release && echo ${VERSION_CODENAME}) |
  sudo tee /etc/apt/sources.list.d/rti.list >/dev/null

Update the local apt cache:
```
sudo apt-get update
```