Install the Traps Agent for Linux

Traps for Linux is designed to protect Linux servers and operates transparently in the background as a system process. After you install Traps for Linux, it is typically not necessary to interact with the Traps agent; however, to perform common actions, such as initiating a manual check in with the Traps management service, you can use the command-line utility (also available for Mac and Windows) named Cytool. Cytool is available in the /opt/traps/bin/cytool directory and must be run as root or with root permissions.
Before installing Traps on a Linux server, verify that the system meets the requirements described in Traps for Linux Requirements.
If you intend to use SELinux, make sure to enable it before you proceed with the Traps installation. This ensures that Traps disables any injection-based modules which cause compatibility issues. If you later enable SELinux, you must reinstall Traps to avoid any compatibility issues.
You can then install Traps using software distribution tools that support Linux such as Satellite or Chef, or you can manually install Traps using the following workflow:
  1. Download the Traps installation script from the Traps management service.
    The Traps management service saves the installation script using the name you provided to identify the package.
  2. Copy the installation package to the Linux server on which you want to install the Traps software.
    For example, to copy the file securely from a local machine to the Linux server:
    user@local ~
    $ scp linux.sh root@ubuntu.example.com:/tmp 
    linux.sh                                100%   21MB   1.2MB/s   00:18
    
  3. Log on to the Linux server and install the Traps software.
    1. Run the install script as root or with root permissions.
      For example:
      user@local ~
      $ ssh root@ubuntu.example.com
      Welcome to Ubuntu 16.04.3 LTS (GNU/Linux 4.4.0-1041-aws x86_64)
      
       * Documentation:  https://help.ubuntu.com
       * Management:     https://landscape.canonical.com
       * Support:        https://ubuntu.com/advantage
      
        Get cloud support with Ubuntu Advantage Cloud Guest:
          http://www.ubuntu.com/business/services/cloud
      
      0 packages can be updated.
      0 updates are security updates.
      
      
      Last login: Tue Dec 26 22:14:15 2017 from 192.168.1.100
      root@ubuntu:/$ cd /tmp
      root@ubuntu:/tmp$ ls
      linux.sh
      root@ubuntu:/tmp$ ./linux.sh
      Verifying archive integrity... All good.
      Uncompressing Traps 634e4d93bb3fb87a Installer for Cloud  100%
      [*] Extracting Traps Installer
      Verifying archive integrity... All good.
      Uncompressing Traps traps_linux-0.7.0-dbg installer  100%
      [1] Checking prerequisites
      Verifying Debian (dpkg) packages:
        * openssl ... OK
        * ca-certificates ... OK
      Done
      [2] Installing Traps at /opt/traps
      Done
      [3] Creating logger directory
      Done
      [4] Installing AppArmor policies
      Done
      [5] Defining Traps local services (systemd)
      Created symlink from /etc/systemd/system/multi-user.target.wants/traps_trapsd.service to /etc/systemd/system/traps_trapsd.service.
      Created symlink from /etc/systemd/system/multi-user.target.wants/traps_pmd.service to /etc/systemd/system/traps_pmd.service.
      Created symlink from /etc/systemd/system/multi-user.target.wants/traps_authorized.service to /etc/systemd/system/traps_authorized.service.
      Done
      [*] Starting Traps security services (systemd)
      Done
      The script installs the files for the Traps app for Linux in the /opt/traps folder with the Cytool utility available at /opt/traps/bin/cytool.
      After the Traps agent successfully connects to the server for the first time and retrieves a valid license, the agent begins protecting the Linux server.
  4. Use the Traps Agent for Linux.
    For a list of available options, enter the cytool command without any arguments or with -h or --help.

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