The Flock Networks Routing Suite is shipped as a Debian package. However the Routing Suite can run on any Linux system. The binaries have no dependencies other than the Linux Kernel API (Sockets, Netlink, etc). The following instructions are for installing on a Debian based Linux distribution (Debian, Ubuntu, Mint, etc). To install on other systems, see Manual Install. The Flock Networks Routing Suite can also be used as a drop in replacement on the SONiC Network Operating System, see SONiC.

Download the latest Debian package.

Install the application from the Debian package (as root or using sudo);

# dpkg -i flockd_20.4.x_amd64.deb

The Flock Routing Suite Licence is appended to;


The Flock Routing Suite Client flockc is copied to;


The Flock Routing Suite Daemon flockd is copied to;


All Flock Routing Suite flockd configuration is stored in a single file;


flockd is controlled by systemd;

$ systemctl status flockd
# systemctl start flockd
# systemctl stop flockd

logging can be viewed via journalctl;

# journalctl -u flockd --boot

Example successful installation

# dpkg -i flockd_20.4.0_amd64.deb
Selecting previously unselected package flockd.
(Reading database ... 27695 files and directories currently installed.)
Preparing to unpack flockd_20.4.0_amd64.deb ...
Unpacking flockd (20.4.0) ...
Setting up flockd (20.4.0) ...

# systemctl start flockd

# systemctl status flockd
● flockd.service - Flock Networks Routing Suite Daemon
Loaded: loaded (/lib/systemd/system/flockd.service; enabled; vendor preset: enabled)
Active: active (running) since Fri 2020-01-24 12:39:24 GMT; 6s ago
Main PID: 368 (flockd)
    Tasks: 1 (limit: 1150)
Memory: 3.2M
CGroup: /system.slice/flockd.service
        └─785 /usr/sbin/flockd
Nov 17 15:39:15 debian10-clean systemd[1]: Started Flock Networks Routing Suite Daemon.
Nov 17 15:39:15 debian10-clean flockd[368]: [INFO  flockd::sys::sys_inst] System Up: version=20.4.0 model="Multi-threaded" pid=3
Nov 17 15:39:15 debian10-clean flockd[368]: [INFO  flockd::sys::sys_inst] REST API TcpListener { addr:, fd: 4 }

$ flockc system
"hostname": "flocknet"
"software": "Flock Networks Routing Suite"
"version": "20.4.0"
"model": "Large"
"base_os": "Linux"
"pid": 368
"compile_mode": "Release"
"log_level": "info"
"uptime": Uptime { days: 0, hours: 0, mins: 0, secs: 14 }
"enabled_protocols": []

Troubleshooting Installation

flockd fails to start

  • systemd PolicyKit / polkit failure

PolicyKit / polkit is the "sudo of systemd". If you have PolicyKit / polkit active on the install host, and you want to start flockd as an unprivileged user, you will need to add PolicyKit / polkit configuration for flockd. Alternatively you can just run systemctl start flockd as root or under sudo.

$ systemctl start flockd
==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-units ===
Authentication is required to start 'flockd.service'.
Authenticating as: www-data
Failed to start flockd.service: Connection timed out
See system logs and 'systemctl status flockd.service' for details.
polkit-agent-helper-1: pam_authenticate failed: Authentication failure