Gatekeeper 1.8.1 - Misc Bugfixes

Changes since v1.8.0:

• misc code quality improvements
• fixed a bug that caused permanent DHCP entries to expire 24 hours after they were last used
• fixed a concurrency bug affecting expiring objects
• fixed some memory leaks in DNS

Full Changelog: v1.8.0...v1.8.1

Installation:

1. Download gatekeeper.x86_64
2. Run sudo ./gatekeeper.x86_64
3. In the web UI (usually served on http://10.0.0.1:1337, opens automatically on startup), click the "Install" button

Gatekeeper 1.8.0 - Wi-Fi

Changes since v1.7.0:

• Automatic Wi-Fi Access Point setup
  
• Sets up at least one Wi-Fi 4 (802.11n) 2.4 GHz BSS (for older devices) & as many Wi-Fi 5 (802.11ac) access points as the hardware allows
• Wi-Fi name (SSID) can be specified in the WIFI_NAME environment variable. Otherwise defaults to current hostname
• Automatic radio regulatory setup
  • country can be specified in the new COUNTRY variable
  • otherwise country auto-detection based on /etc/timezone, /etc/localtime, LANG & LANGUAGE environment variables
• Password-protected WPA-2
  • password can be specified in the WIFI_PASSWORD environment variable
  • otherwise a password will be generated randomly
  • generating memorable passwords, using words from /usr/share/dict/words
• Pretty decent speeds!
  

Full Changelog: v1.7.0...v1.8.0

Installation:

1. Download gatekeeper.x86_64
2. Run sudo ./gatekeeper.x86_64
3. In the web UI (usually served on http://10.0.0.1:1337, opens automatically on startup), click the "Install" button

Gatekeeper 1.7.0

Changes since v1.6.0:

• bridge multiple LAN interfaces on startup
• add own MAC address to the devices table
• reorder tables to save some space in the UI
• a lot of bugfixes (kudos to [email protected] folks!)
  • close listening sockets before starting the new version during update
  • don't kill own PID when starting as new version after update
  • replaced system DNS resolver with a built-in one
  • add missing DNS queries during HTTP redirects
  • fix crashes caused by sorting tables with nullopt entries
  • better tracking for DHCP device activity

Full Changelog: v1.6.0...v1.7.0

Installation:

1. Download gatekeeper.x86_64
2. Run sudo ./gatekeeper.x86_64
3. In the web UI (usually served on http://10.0.0.1:1337, opens automatically on startup), click the "Install" button

v1.6.0

Changes since v1.5.0:

• Traffic Graphs
  
  • 100ms accuracy
  • 24h retention
  • realtime streaming of new data
  • 100% accurate graphical representation
  • export data as CSV or JSON
  • 3-graph display with different time windows & mouse selection
  • separate graphs for any combination of LAN host & remote IP
  • memory-efficient representation with just (64 B / LAN host & remote IP pair) + (32 B / data point)
• Extended timeout for outgoing DNS queries - for more DNS robustness under bad network conditions
• Fixed DNS queries blocked by LAN port auto-forwarding
• Fixed flakiness in startup checks

Full Changelog: v1.5.0...v1.6.0

Installation:

1. Download gatekeeper.x86_64
2. Run sudo ./gatekeeper.x86_64
3. In the web UI (usually served on http://10.0.0.1:1337, opens automatically on startup), click the "Install" button

Gatekeeper 1.5.0

Changes since v1.4.0:

• Significantly reduced DNS log spam
• Gracefully handled various DNS probes sent by Android devices when connecting to the network
• Changed the systemd restart policy to restart Gatekeeper forever with increasing backoff (up to 60 seconds)
• Support for DHCP "Release" request
• Fixed a double-logging bug when running under systemd
• Fixed an error where the firewall was sometimes mangling DHCP source IPs

Full Changelog: v1.4.0...v1.5.0

Gatekeeper 1.4.0

Major new features:

• OpenWRT compatibility (only tested ARM64 for now)
• Changed the domain used by local network to "lan". This used to be "local" which is also the domain used by mDNS.
• Added a Symmetric NAT fallback mechanism, which allows multiple LAN machines to create outgoing connections on the same port. The default Full Cone NAT with port preservation still works.

Full Changelog: v1.3.1...v1.4.0

Gatekeeper 1.3.1

Major new features:

• Easier peer-to-peer connections thanks to full-cone NAT with port preservation

Bugfixes:

• Fixed a file descriptor leak in the NAT code

Full Changelog: v1.3.0...v1.3.1

Gatekeeper 1.3.0

Major new features:

• LAN interface autoconfiguration
• Auto-update mechanism
• New NAT mechanism, running fully in userspace & capable of deep packet inspection
• No more auto-install on startup (instead added "Install" button to the Web UI)
• Size reduction ~8MB => ~3MB
• Added header bar to the Web UI

Full Changelog: v1.2.0...v1.3.0

Gatekeeper 1.2.0

Full Changelog: v1.1.0...v1.2.0

Gatekeeper 1.1.0

Full Changelog: v1.0.1...v1.1.0

Run all commands as root:

1. Create /opt/gatekeeper/ directory.
2. Download gatekeeper.tar.gz.
3. Extract it with cd /opt/gatekeeper && tar -xzf <path to downloaded gatekeeper.tar.gz>.
4. (Optionally) Do a test run with sudo ./gatekeeper <interface name>. Ctrl+C to stop.
5. Edit /opt/gatekeeper/gatekeeper.service file and change the interface name from br0 to the name of your local interface.
6. Install systemd service with sudo systemctl enable --now /opt/gatekeeper/gatekeeper.service.
7. Open web interface by navigating to http://<IP of the local interface>:1337/ in your browser.