Industries
Firewalls and secure remote access.
How to choose · Network security
Choose a firewall by matching throughput under your real security features, management model and update commitments to your environment. Inspect how much traffic it can handle with inspection enabled, what remote access it supports, how policy is managed and logged, and how long the maker supplies security updates. Support lifetime and management effort matter more than the feature list.
Comparison · Network security
A traditional remote-access VPN places a user's device on the internal network, so a compromised laptop can reach much more than it needs. Zero trust network access verifies user and device for each application and grants only that access. The second model limits lateral movement but needs good identity, device inventory and application mapping, so many organisations adopt it in stages.
Requirements · Network security
A small office should separate staff devices, guests, servers and untrusted internet-of-things equipment into distinct network zones, with a firewall controlling traffic between them. Secure administration, change default credentials, update router and access point firmware, require strong authentication for remote access and keep logs. Simple, consistently applied rules beat elaborate designs nobody maintains.
Problems & fixes · Network security
Rule sprawl happens when temporary exceptions are never removed, rules lack owners and several people edit without records. It causes hidden exposure, outages when something is changed and slow audits. Fix it by documenting what exists, using hit counters and logs to identify unused rules, consolidating through objects and groups, and putting a change process in place.