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Hackery: Difference between revisions
From dankwiki
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* Checks sysctls, <tt>netstat</tt>, <tt>/proc</tt>, etc for network settings. Makes extensive sensible recommendations. | * Checks sysctls, <tt>netstat</tt>, <tt>/proc</tt>, etc for network settings. Makes extensive sensible recommendations. | ||
** Is device polling / NAPI in use? Do firewall rules disallow PMTU discovery? | ** Is device polling / NAPI in use? Do firewall rules disallow PMTU discovery? | ||
** Is TCP FRTO being used in the presence of wireless links? etc | ** Is [[TCP]] FRTO being used in the presence of wireless links? etc | ||
* Analyzes pcaps or raw sockets ''in situ'', with filters, performing detailed diagnostics ie | * Analyzes pcaps or raw sockets ''in situ'', with filters, performing detailed diagnostics ie | ||
** "TCP 1323 high-performance extensions are being used in 24% of the connections" | ** "[[TCP]] 1323 high-performance extensions are being used in 24% of the connections" | ||
** "Fragmentation is resulting from port 7000's large UDP emissions, can we tune it this way..." | ** "Fragmentation is resulting from port 7000's large UDP emissions, can we tune it this way..." | ||
