CacheGuard Gateway is described as 'Free, open-source network security appliance for startups, growing businesses, and SMEs/SMBs that need enterprise-grade protection without the complexity or cost' and is a Firewall in the security & privacy category. There are more than 100 alternatives to CacheGuard Gateway for a variety of platforms, including Windows, Linux, Mac, Android and iPhone apps. The best CacheGuard Gateway alternative is AdGuard, which is both free and Open Source. Other great apps like CacheGuard Gateway are NextDNS, OPNsense, TrafficMonitor and pfSense.
Sygate Personal Firewall is a bit old but good firewall for Windows. It uses very small amount of system resources and is quite robust.
The project is now abandoned because Symantec Corporation, on October 10, 2005, acquired Sygate Technologies, so Sygate Personal Firewall ha.
ModSecurity is an open source web application firewall. Working embedded in the web server, or standalone as a network appliance, it detects and prevents attacks against web applications.
Now you can run a CVS, DHCP, DLNA, DNS, Dynamic DNS, Email (POP3 / SMTP), FTP Proxy, FTP, FTPS, Git, IRC, ISCSI, MySQL, NFS, NTP, PHP and Lighttpd, Port Forwarder, Proxy, Remote Control, Rsync, SMB/CIFS, SMS, Socks, SFTP, SSH, Stomp, Styx, Syslog, TFTP, Telnet, Test, Time...
System Shield has a variety of tools that cover every aspect of PC security. These tools can make sure you’re safe on the Internet, and that your files won’t fall into the wrong hands. Here are the ones that make this happen:
FortKnox Firewall is personal firewall solution that allows you to protect a PC against hacker attacks, trojans, spyware and internet threats. It has built-in Intrusion Prevention System and SPI technologies for extended user protection.
BFilter is a filtering web proxy. It was originally intended for removing banner ads only, but since then its capabilities have been greatly extended. Unlike most of the similar tools, it doesn't rely on blacklists (although it does support them).
Wallix Pro Firewall prevents intruders from accessing your computer and that’s the main objective for a computer firewall. It automatically detects and blocks attacks through a comprehensive examination of all inbound and outbound information to your computer.
Snapt Balancer is one of the most advanced load balancing platforms in the world. It is cloud, VM, and software ready.
The BIG-IP Edge Portal™ application facilitates secure remote access to enterprise web applications. This application can bookmark frequently accessed enterprise web applications and automatically authenticate the end-user with BIG-IP Edge Gateway™ and FirePass™ SSL VPN...
Check Point is a leader in network security software, firewall solutions, VPN solutions, endpoint security, network protection, security management, data protection and Pointsec data encryption technologies.
Features: redirect your Mac's network traffic to any compatible SOCKS or HTTP proxy server works with browsers (Safari, Firefox), email (Mail), chat (iChat, Skype), FTP, telnet, and many more network applications enable and switch the active proxy conveniently from a menulet .
SquidMan is a MacOS X graphical installer and manager for the Squid proxy cache. It is designed to operate as a "personal" proxy server.
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