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What Is an Application Level Gateway? How ALGs Work

eSecurity Planet

An application gateway, also known as an application level gateway (ALG), functions as a critical firewall proxy for network security. Understanding ALGs involves knowing how they work, their pros and cons, and how they integrate with or differ from other types of firewalls.

Firewall 105
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What Is a Secure Web Gateway? Features, Benefits & Challenges

eSecurity Planet

Secure web gateways (SWGs) are network security solutions that monitor and filter internet traffic to guard against threats and ensure policy compliance. These include firewalls, CASB, SASE, endpoint protection technologies, and IAM solutions. Packet filtering, VPN support, NAT, IDS/IPS.