Network Diagnostics: Using Ping, Traceroute, and DNS Lookup
A masterclass in fundamental command-line network diagnostics: the mechanics of ICMP Echo, TTL decrementing in traceroute, and DNS record queries.
Insights, updates, and practical guides from our engineering team.
A masterclass in fundamental command-line network diagnostics: the mechanics of ICMP Echo, TTL decrementing in traceroute, and DNS record queries.
A vendor-neutral diagnostic framework for isolating high CPU utilization: analyzing context switching, run-queue load averages, and runaway processes.
A methodical engineering guide to diagnosing slow internet speeds: isolating physical layers, Wi-Fi vs Ethernet testing, gateway metrics, and MTU issues.
A guide to IEEE 802.1Q VLANs and defense-in-depth network segmentation: broadcast containment, trunking, inter-VLAN routing, and security.
An engineering guide to link redundancy, comparing active-passive failover with multi-path load balancing across enterprise uplinks.
A comprehensive physical-layer guide comparing single-mode (OS2) and multimode (OM3/OM4/OM5) optical fibers, transceivers, and dispersion.
An in-depth technical analysis clarifying the operational differences between channel bandwidth, actual TCP throughput, and latency components.
A technical evaluation of software architectures: comparing responsive websites, Single Page Applications, Native mobile apps, and Progressive Web Apps (PWAs).
A technical deep-dive into HTTPS and TLS 1.3: asymmetric key exchange, symmetric encryption, the 1-RTT handshake, X.509 PKI, and HSTS enforcement.