Planning & buying
Dedicated Internet: A buyer’s guide
An independent-minded guide to evaluating dedicated business Internet, bandwidth, SLAs, resilience and installation, with an interactive bandwidth estimator.
Stealth Communications / Knowledge Base
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Practical guides for planning, understanding, and troubleshooting your business network. Written to make the technical details useful.
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Showing all 31 guides
Planning & buying
Dedicated vs. shared Internet
Compare dedicated and shared business Internet services, performance, reliability, pricing and provider commitments.
Planning & buying
Choosing the right bandwidth
A practical guide to sizing business Internet capacity for cloud applications, meetings, VPNs, remote desktops, AI and data transfers.
Planning & buying
Understanding your Internet SLA
A practical guide to Internet service level agreements, availability, performance measurements, exclusions and remedies.
Performance & troubleshooting
Troubleshoot a slow Internet connection
Practical steps to investigate slow business Internet, compare Wi-Fi and wired performance, and gather useful information for support.
Performance & troubleshooting
How to run an Internet speed test
Learn how to run an Internet speed test, choose a server and interpret throughput, latency and different test methods.
Performance & troubleshooting
Linux high-speed network tuning
Measure and tune Linux network performance for 10 Gbps and faster paths, from TCP buffers to adapters and CPUs.
Performance & troubleshooting
FreeBSD high-speed network tuning
Measure and tune FreeBSD network performance for 10 Gbps and faster paths, including TCP buffers and interface checks.
Performance & troubleshooting
macOS high-speed network tuning
Measure and tune Mac network performance for 10 Gbps and faster paths, including adapters, TCP buffers and latency.
Performance & troubleshooting
Windows high-speed network tuning
Measure and tune Windows network performance for 10 Gbps and faster paths, including adapters, TCP and CPU processing.
Performance & troubleshooting
Wired Ethernet vs. Wi-Fi
Compare wired Ethernet and Wi-Fi for business performance, latency, busy offices and network planning.
Performance & troubleshooting
How Internet traffic reaches a cloud or AI service
Follow a business request across networks to a cloud or AI service and learn how to investigate reachability and latency.
Performance & troubleshooting
Understanding latency, jitter, and packet loss
Learn how latency, jitter and packet loss affect applications, interpret traceroute and MTR, and test high-speed throughput.
Reliability & DNS
Internet redundancy: Are two connections independent?
Learn how to assess shared routes, facilities, power, equipment and failover when planning a backup Internet connection.
Reliability & DNS
Business DNS: What happens when it fails?
Learn how business DNS works, investigate name resolution failures, and compare public DNS resolvers and resilience options.
Planning & buying
What happens during a fiber installation?
Understand the site survey, building access, fiber installation, handoff, testing and service activation.
Planning & buying
Fiber construction and building access
Learn how pathways, risers, building access and construction affect business fiber installations in New York City.
Planning & buying
Understanding the Internet handoff
A practical guide to the service handoff, Ethernet interfaces, optics, addressing and troubleshooting.
Planning & buying
Public IP addresses for business
Understand public and private IP addresses, static assignments, gateways, NAT and IPv6 for your business.
Reliability & DNS
BGP for businesses
Learn how businesses use BGP, IP address resources and routing policy, and how to plan a resilient deployment.
Performance & troubleshooting
Preparing for an Internet support request
Learn which details and observations can help an engineer investigate an Internet service problem.
Planning & buying
Preparing a network for AI workloads
Plan network capacity, latency and data movement for AI applications, inference, training and large transfers.
Firewalls
Cisco Meraki MX firewall guide
A practical guide to connecting and troubleshooting a Cisco Meraki MX firewall on business Internet service.
Firewalls
Ubiquiti UniFi gateway guide
A practical guide to connecting and troubleshooting a Ubiquiti UniFi gateway on business Internet service.
Firewalls
Palo Alto Networks firewall guide
A practical guide to connecting and troubleshooting a Palo Alto Networks firewall on a dedicated Internet service.
Firewalls
Fortinet FortiGate firewall guide
A practical guide to connecting and troubleshooting FortiGate on a dedicated Internet service.
Firewalls
Check Point firewall guide
A practical guide to connecting and troubleshooting Check Point Security Gateway on a dedicated Internet service.
Firewalls
SonicWall firewall guide
A practical guide to connecting and troubleshooting SonicWall on a dedicated Internet service.
Firewalls
Cisco Secure Firewall guide
A practical guide to connecting and troubleshooting Cisco Secure Firewall Threat Defense on a dedicated Internet service.
Firewalls
Sophos Firewall guide
A practical guide to connecting and troubleshooting Sophos Firewall on a dedicated Internet service.
Firewalls
Juniper SRX firewall guide
A practical guide to connecting and troubleshooting Juniper SRX on a dedicated Internet service.
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