proxy simultaneamente, quantidade de memoria necessaria, numero suficiente de "file descriptors", a quantidade necessaria de instancias de autenticacao quando em conjunto com o AD ou outra fonte de autenticacao, etc.Para facilitar os ajustes necessarios a sua infraestrutura podemos utilizar a ferramenta squidclient.No ubuntu server instalamos o utilitario diretamente dos repositorios com o seguinte comando:apt-get install squidclientApos a instalacao faremos nossa primeira verificacao.squidclient mgr:infoSera exibida uma tela conforme a tela abaixo:HTTP/1.0 200 OKServer: squidDate: Thu, 25 Nov 2010 20:08:11 GMTContent-Type: text/plainExpires: Thu, 25 Nov 2010 20:08:11 GMTX-Cache: MISS from meuservidorX-Cache-Lookup: MISS from meuservidor:3128Via: 1.0 meuservidor:3128 (squid)Connection: closeSquid Object Cache: Version 2.7.STABLE7Start Time: Thu, 18 Nov 2010 14:41:54 GMTCurrent Time: Thu, 25 Nov 2010 20:08:11 GMTConnection information for squid: Number of clients accessing cache: 604 Number of HTTP requests received: 10278482 Number of ICP messages received: 0 Number of ICP messages sent: 0 Number of queued ICP replies: 0 Number of HTCP messages received: 0 Number of HTCP messages sent: 0 Request failure ratio: 0.02 Average HTTP requests per minute since start: 987.7 Average ICP messages per minute since start: 0.0 Select loop called: 91903423 times, 6.794 ms avgCache information for squid: Request Hit Ratios: 5min: 0.0%, 60min: 0.0% Byte Hit Ratios: 5min: 7.6%, 60min: 12.0% Request Memory Hit Ratios: 5min: 0.0%, 60min: 0.0% Request Disk Hit Ratios: 5min: 0.0%, 60min: 0.0% Storage Swap size: 0 KB Storage Mem size: 108 KB Mean Object Size: 0.00 KB Requests given to unlinkd: 0Median Service Times (seconds) 5 min 60 min: HTTP Requests (All): 0.05331 0.00379 Cache Misses: 0.09736 0.09219 Cache Hits: 0.00000 0.00000 Near Hits: 0.00000 0.00000 Not-Modified Replies: 0.00000 0.00000 DNS Lookups: 0.05815 0.07284 ICP Queries: 0.00000 0.00000Resource usage for squid: UP Time: 624377.489 seconds CPU Time: 4717.215 seconds CPU Usage: 0.76% CPU Usage, 5 minute avg: 0.65% CPU Usage, 60 minute avg: 0.89% Process Data Segment Size via sbrk(): 39908 KB Maximum Resident Size: 174464 KB Page faults with physical i/o: 1Memory usage for squid via mallinfo(): Total space in arena: 39908 KB Ordinary blocks: 23498 KB 4284 blks Small blocks: 0 KB 0 blks Holding blocks: 1108 KB 1 blks Free Small blocks: 0 KB Free Ordinary blocks: 16409 KB Total in use: 24606 KB 60% Total free: 16409 KB 40% Total size: 41016 KBMemory accounted for: Total accounted: 9511 KB memPoolAlloc calls: 1287300273 memPoolFree calls: 1287290977File descriptor usage for squid: Maximum number of file descriptors: 4096 Largest file desc currently in use: 1151 Number of file desc currently in use: 584 Files queued for open: 0 Available number of file descriptors: 3512 Reserved number of file descriptors: 100 Store Disk files open: 0 IO loop method: epollInternal Data Structures: 29 StoreEntries 29 StoreEntries with MemObjects 26 Hot Object Cache Items 0 on-disk objectsObserve que e possivel verificar diversos pontos de interesse como a quantidade de "file descriptors" utilizada, a quantidade de memoria utilizada, a quantidade de clientes acessando o cache, dentre outros.Tambem podemos obter informacoes mais detalhadas sobre opcoes especificas. As opcoes possiveis podem ser exibidas com o comando:squidclient mgr:menuHTTP/1.0 200 OKServer: squidDate: Thu, 25 Nov 2010 20:13:18 GMTContent-Type: text/plainExpires: Thu,