PRTG Catches Network Issues Before They Cause Downtime
Threshold-based alerts flag problems early, so your team can act before users notice, not after.
Reactive troubleshooting usually means hearing about a problem from frustrated users, not your monitoring tool. PRTG sets threshold-based alerts across devices, servers and applications, notifying your team by email, SMS or push the moment a metric crosses a set limit. That means catching a failing disk or overloaded server before it becomes an outage and getting time back from firefighting. Start a free trial and set your first alerts today.
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Smoothwall is a best-of-breed Internet firewall/router, designed to run on commodity hardware and to provide an easy-to-use administration interface to those using it. Built using open source and Free software, it's distributed under the GNU Public License.
The fwiptables is a one-file WIZARD,
for IPTABLES with COMMAND-LINE,
with CLI-MENU, with GUI-MENU,
with GUI-ROLL, with GUI-SHELL.
fwiptables develop with Purpose Educational
Since 2020, developing code
Since 2024, cleaning code
Since 2025, fixing code
Browse Wiki: https://sourceforge.net/p/f-iptables/wiki/browse_pages/
Anonymouse Ticket: https://sourceforge.net/p/f-iptables/tickets/
An iptables based firewall for systems running the Linux 2.4 or later kernel. Very flexible configuration allows the firewall to be used in a wide variety of firewall/gateway/router and VPN environments.
A powerful network security tool, easy, safe and totally free.
BrazilFW is a mini Linux distribution designed to be used as a Firewall and Router that runs easily on older computers. An old PC running BrazilFW is much more powerful and efficient than commercial software for routing in offices and residences running on a "powerful" computer.
BrazilFW is based on Coyote Linux, which was designed by Joshua Jackson who discontinued Coyote Linux in version 2.24 in August 2005.
High interaction honeypot solution for Linux based systems
NOTICE:
The format of this project has been changed from ISO to using ansible and has been moved to GitHub.
Github link: https://github.com/Bifrozt/bifrozt-ansible
...This warning comes from the "netcat" binary included in the download as a DOS time client. Unfortunately netcat has code that is flagged as malware.
FREESCO, a NAT/firewall router/server based on Linux and runs on a single 1.44MB floppy. Freesco is very powerful and versatile and can connect multiple home or small office networks to most types of Internet connections including dialup.
Ferramenta web para administração de regras de firewall para pequenas redes que inclui scripts de inicialização de redes, configurações de integração com Squid e um Balanceador de Cargas Simples.
Baseado no projeto squidadmin.
Easily turn a Ubuntu-based computer into a full linuxrouter, complete with dhcpd, named/bind, iptables firewall, and packet inspection of the network traffic being routed.
Deep packet inspection for layer 2 (mac), layer 3 (ipv4, ipv6), layer 4 (icmp, tcp, udp), and layer 7 (application-specific). Summary of network flows and all layers of inspected traffic is stored in a database at 1-second intervals.
Milkshake is a Slackware-based Linux distribution that boots from a USB stick and turns an unused PC into a home firewall/router. This project is currently in prealpha and is not intended for use yet. Please do not rate it up or down yet.
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The WRT54GL Tarifa enhanced firmware. Linksys WRT54G/WRT54GS models V1 to V4 and the WRT54GL V1.x This Third Party Firmware is functionaly the same as the original, the improvements are to make this router more scaleable, by increasing the capacity.
Frankenwall is a bash shell script intended to create a highly secure IPTables based linux firewall/router with QOS/traffic shaping/bandwidth management. Be certain you know EXACTLY what your network needs before using Frankenwall. Wimps need not apply.
jRouter is a Web-based Linuxrouter management system. It's designed to be a simple all-in-one router setup and management utility. Allows configuration of network interfaces, dhcpd, iptables, port forwarding, IP/MAC address filters.
Easiest way to turn a Linux System into a Nat router with a web interface for firewall configuration and monitoring.
For beginers, offers a simple and secure solution.
For advanced users, a customizable and friendly way of remote administration.
Bash script that uses iproute2 and shapecfg (shaper.o) to limit incoming and outgoing traffic on a linuxrouter. Also haves option for supporting more than 100 shapers via kernel patch.
Firedoor is firewall , qos , masquerading and nat script that uses bash, iptables and iproute2. It's designed to be in firewall/router box but can also protect a single workstation.
linux4501 is a linux software distribution for the soekris net4501 single board PC (see www.soekris.com).
It fits on a 16 or 32 MB Compactflash card and turns the 4501 into a firewall and (dsl) router. It can also be used as a starting point for your
ow
LFR is a Linux/Netfilter based firewall/router on a single floppy disk.
Think of it as a micro Linux distribution with a purpose. With LFR you
can take that old 486 with 4 MB of RAM that you have in the closet and
put it to good use. With a pair of ch
LrFW Is a Linux RAM Baised Firewall. A fully featured firewall and router with no moving parts to break. In the future I may also write an optional Cisco PIX translator and interface.
Mini OpenBSD Router/Firewall/Gateway
with openssh, altqd, pfctl (firewall+nat), routed, snmpd, oidentd, simple shell menu config,multi user & wireless support. Fit on 8MB flashdisk & 24 MB ram.