terça-feira, 5 de maio de 2009

Site onde voce encontra o fabricante atravez do MAC.

http://www.coffer.com/mac_find/

Algumas das principais portas, protocolo e serviço correspondente.

Port/Protocol Description

20/tcp File Transfer Protocol FTP [Data Connection]
21/tcp File Transfer Protocol FTP [Control Connection]
22/tcp Secure Shell SSH remote Login Protocol (Only with security package)
23/tcp Telnet protocol
53/tcp Domain Name Server DNS
53/udp Domain Name Server DNS
67/udp Bootstrap Protocol or DHCP Server (only with dhcp package)
68/udp Bootstrap Protocol or DHCP Client (only with dhcp package)
80/tcp World Wide Web HTTP
123/udp Network Time Protocol NTP (Only with ntp package)
161/udp Simple Network Menagment Protocol SNMP (Only with snmp package)
443/tcp Secure Socket Layer SSL encrypted HTTP(Only with hotspot package)
500/udp Internet Key Exchange IKE protocol (Only with ipsec package)
514/udp Syslog server on MikroTik Dude Network Monitor Service (Only with MikroTik Dude package)
520/udp Routing Information Protocol RIP (Only with routing package)
521/udp Routing Information Protocol RIP (Only with routing package)
179/tcp Border Gateway Protocol BGP (Only with routing package)
1080/tcp SOCKS proxy protocol
1194/tcp Open Virtual Private Network OVPN (Only with ppp package)
1701/udp Layer 2 Tunnel Protocol L2TP (Only with ppp package)
1718/udp H.323 Gatekeeper Discovery (Only with telephony package)
1719/tcp H.323 Gatekeeper RAS (Only with telephony package)
1720/tcp H.323 Call Setup (Only with telephony package)
1723/tcp Point-to-Point Tuneling Protocol PPTP (Only with ppp package)
1731/tcp H.323 Audio Call Control (Only with telephony package)
1812/udp RADIUS Authentication Remote Access Dial in User service Authencitation
1813/udp RADIUS Accounting Remote Access Dial in User service Accounting
1900/udp Universal Plug and Play uPnP
1966/udp MME Mesh Made Easy Dynamic Mesh Protocol Origninator Messages (based on BATMAN)
1968/tcp MME Mesh Made Easy Dynamic Mesh Protocol Gateway Protocol(based on BATMAN)
2828/tcp Universal Plug and Play uPnP
2000/tcp Bandwidth-test server
2210/tcp MikroTik Dude Management Console Service (Only with MikroTik Dude)
2211/tcp Secure MikroTik Dude Management Console Service (Only with MikroTik Dude)
3986/tcp Proxy for winbox
3987/tcp SSL proxy for secure winbox (Only with security package)
5678/udp MikroTik Neighbor Discovery Protocol
8080/tcp HTTP Web proxy (Only with web-proxy package)
8291/tcp Winbox
20561/udp MAC winbox
5000+/udp H.323 RTP Audio Streem (Only with telephony package)
/1 ICMP - Internet Control Message Protocol
/4 IP - IP in IP (encapsulation)
/47 GRE - General Routing Encapsulation (Only for PPTP and EoIP)
/50 ESP - Encapsulating Security Payload for IPv4 (Only with security package)
/51 AH - Authentication Header for IPv4 (Only with security package)
/89 OSPFIGP - OSPF Interior Gateway Protocol
/112 VRRP - Virtual Router Redundancy Protocol

No site abaixo tem uma lista completa de todas as portas.
http://pt.wikipedia.org/wiki/Lista_de_portas_de_protocolos

Site para calcular a sua network.

http://jodies.de/ipcalc

domingo, 3 de maio de 2009

Quer ver varias cameras IP´s no mundo todo?

Basta digitar essa linha (abaixo) no google e clickar nos links.
Da para ver camera de transito, bares, aeroportos e casas.

inurl:view/index.shtml

segunda-feira, 20 de abril de 2009

Regedit

#01 Bloquear acesso ao Painel de Controle
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v NoControlPanel /t REG_DWORD /d 0×00000001 /f

#02 Forçar o estilo clássico no Painel de Controle
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v ForceClassicControlPanel /t REG_DWORD /d 0×00000001 /f

#03 Bloquear a alteração do Papel de Parede
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v NoDesktopCleanupWizard /t REG_DWORD /d 0×00000001 /f

#04 Desabilitar a Limpeza da Área de Trabalho
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v NoDesktopCleanupWizard /t REG_DWORD /d 0×00000001 /f

#05 Remover a Lixeira da Área de Trabalho
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\NonEnum” /v {645FF040-5081-101B-9F08-00AA002F954E} /t REG_DWORD /d 0×00000001 /f

#06 Remover Meus Documentos da Área de Trabalho
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\NonEnum” /v {450D8FBA-AD25-11D0-98A8-0800361B1103} /t REG_DWORD /d 0×00000001 /f

#07 Remover Meu Computador da Área de Trabalho
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\NonEnum” /v {20D04FE0-3AEA-1069-A2D8-08002B30309D} /t REG_DWORD /d 0×00000001 /f

#08 Remover “Propriedades” do Menu de Contexto de Meus Documentos
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v NoPropertiesMyDocuments /t REG_DWORD /d 0×00000001 /f

#09 Remover “Propriedades” do Menu de Contexto de Meu Computador
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v NoPropertiesMyComputer /t REG_DWORD /d 0×00000001 /f

#10 Remover “Propriedades” do Menu de Contexto da Lixeira
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v NoPropertiesRecycleBin /t REG_DWORD /d 0×00000001 /f

#11 Ocultar Meus Locais de Rede da Área de Trabalho
REG ADD”HKCU\Software\Microsoft\Windows\CurrentVersio n \Policies\Explorer” /v NoNetHood /t REG_DWORD /d 0×00000001 /f

#12 Remover o Internet Explorer da Área de Trabalho
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v NoInternetIcon /t REG_DWORD /d 0×00000001 /f

#13 Não permitir que o usuário altere o caminho de Meus Documentos
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v DisablePersonalDirChange /t REG_DWORD /d 0×00000001 /f

#14 Não Permitir o Compartilhamento de arquivos recentemente abertos
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v NoRecentDocsNetHood /t REG_DWORD /d 0×00000001 /f

#15 Remover Logoff do Menu Iniciar
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v NoLogoff /t REG_DWORD /d 0×00000001 /f
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v ForceStartMenuLogOff /t REG_DWORD /d 0×00000000 /f

#16 Remover e Impedir Acesso a Opção “Desligar” do Menu Iniciar
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v NoClose /t REG_DWORD /d 0×00000001 /f

#17 Não manter Histórico de Documentos abertos recentemente
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v NoRecentDocHistory /t REG_DWORD /d 0×00000001 /f

#18 Limpar Histórico de Documentos abertos recentemente ao sair
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v ClearRecentDocsOnExit /t REG_DWORD /d 0×00000001 /f

#19 Remover Menus Personalizados
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v Intellimenus /t REG_DWORD /d 0×00000001 /f

#20 Desativar Rastreamento do Usuário
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v NoInstrumentation /t REG_DWORD /d 0×00000001 /f

#21 Bloquear “Barra de Tarefas”
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v LockTaskbar /t REG_DWORD /d 0×00000001 /f

#22 Forçar “Menu Iniciar” no estilo Clássico
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v NoSimpleStartMenu /t REG_DWORD /d 0×00000001 /f

#23 Remover as dicas dos balões nos itens do “Menu Iniciar”
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v NoSMBalloonTip /t REG_DWORD /d 0×00000001 /f

#24 Não Exibir “Barras de Ferramentas Personalizadas” na “Barra de Tarefas”
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v NoToolbarOnTaskbar /t REG_DWORD /d 0×00000001 /f

#25 Desabilitar Atualizações Automáticas do Windows
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v NoAutoUpdate /t REG_DWORD /d 0×00000001 /f

#26 Remover o “Gerenciador de Tarefas” [Ctrl+Alt+Del]
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\System” /v DisableTaskMgr /t REG_DWORD /d 0×00000001 /f

#27 Limpar o Histórico de Urls acessadas no Internet Explorer a cada 1 dia
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\In ternet Settings\Url History” /v DaysToKeep /t REG_DWORD /d 0×00000001 /f

#28 Bloco de Notas como Editor Html padrão no Internet Explorer
REG ADD “HKCU\Software\Microsoft\Internet Explorer\Default HTML Editor” /v Description /t REG_SZ /v “Bloco de notas” /f

#29 Não Permitir o Internet Explorer coletar informações do AutoCompletar
REG ADD “HKCU\Software\Microsoft\Internet Explorer\Main” /v Use FormSuggest /t REG_SZ /d no /f
REG ADD “HKCU\Software\Microsoft\Internet Explorer\Main” /v FormSuggest Passwords /t REG_SZ /d no /f
REG ADD “HKCU\Software\Microsoft\Internet Explorer\Main” /v FormSuggest PW Ask /t REG_SZ /d no /f

#30 Habilitar o Bloqueio de Foco
REG ADD “HKCU\Control Panel\Desktop” /v ForegroundLockTimeout /t REG_DWORD /d 0×00030d40 /f
REG ADD “HKU\.DEFAULT\Control Panel\Desktop” /v ForegroundLockTimeout /t REG_DWORD /d 0×00030d40 /f

#31 Finalização Automática das tarefas
REG ADD “HKCU\Control Panel\Desktop” /v AutoEndTasks /t REG_SZ /d 1 /f
REG ADD “HKU\.DEFAULT\Control Panel\Desktop” /v AutoEndTasks /t REG_SZ /d 1 /f

#32 Optimização no Boot
REG ADD “HKLM\SOFTWARE\Microsoft\Dfrg\BootOptimizeFunc tion ” /v Enable /t REG_SZ /d Y /f
REG ADD “HKLM\SOFTWARE\Microsoft\Dfrg\BootOptimizeFunc tion ” /v OptimizeComplete /t REG_SZ /d Yes /f

#33 Ativar Num-Lock quando Entrar no Windows
REG ADD “HKCU\Control Panel\Keyboard\” /v InitialKeyboardIndicators /t REG_SZ /d 2 /f
REG ADD “HKU\.DEFAULT\Control Panel\Desktop” /v InitialKeyboardIndicators /t REG_SZ /d 2 /fboardIndicators /t REG_SZ /d 2 /f

#34 Menu Iniciar Máis Rápido
REG ADD “HKCU\Control Panel\Desktop” /v MenuShowDelay /t REG_SZ /d 100 /f
REG ADD “HKU\.DEFAULT\Control Panel\Desktop” /v MenuShowDelay /t REG_SZ /d 100 /f

#35 Descarregar DLLs inutlizadas da Memória
REG ADD “HKLM\SOFTWARE\Microsoft\Windows\CurrentVersio n\Ex plorer” /v AlwaysUnloadDLL /t REG_SZ /d 1 /f

#36 Aumentar o Número de Downloads Simultâneos no Internet Explorer
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\In ternet Settings” /v MaxConnectionsPer1_0Server /t REG_DWORD /d 0×0000000a /f
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\In ternet Settings” /v MaxConnectionsPerServer /t REG_DWORD /d 0000000a /f

#37 Aumentar a Taxa de Upload
REG ADD “HKLM\SYSTEM\CurrentControlSet\Services\AFD\Pa rame ters” /v DefaultSendWindow /t REG_DWORD /d 0×00018000 /f
REG ADD “HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\ Para meters” /v EnablePMTUDiscovery /t REG_DWORD /d 0×00000001 /f

#38 Limpeza de Disco Mais Eficaz (Prevenção contra Travamentos)
REG DELETE “HKLM\SOFTWARE\Microsoft\Windows\CurrentVersio n\Ex plorer\VolumeCaches\Compress old files” /f

#39 Limpar o Arquivo de Troca ao Encerrar o Windows
REG ADD “HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management” /v ClearPageFileATShutdown /t REG_SZ /d 1 /f

#40 Otimização TCP/IP
REG ADD “HKLM\SYSTEM\CurrentControlSet\Services\Lanman serv er\parameters” /v SizReqBuf /t REG_DWORD /d 0×00014596 /f
REG ADD “HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\ Serv iceProvider” /v class /t REG_DWORD /d 0×00000001 /f
REG ADD “HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\ Serv iceProvider” /v DnsPriority /t REG_DWORD /d 0×00000007 /f
REG ADD “HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\ Serv iceProvider” /v HostsPriority /t REG_DWORD /d 0×00000006 /f
REG ADD “HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\ Serv iceProvider” /v LocalPriority /t REG_DWORD /d 0×00000005 /f
REG ADD “HKLM\SYSTEM\CurrentControlSet\Services\Tcpip\ Serv iceProvider” /v NetbtPriority /t REG_DWORD /d 0×00000008 /f

#41 Pesquisa de Computadores Mais Eficaz
REG DELETE “HKLM\Software\Microsoft\Windows\CurrentVersio n\Ex plorer\RemoteComputer\NameSpace\{D6277990-4C6A-11CF-8D87-00AA0060F5BF}” /f

#42 Desabilitar Cache para Thumbnails (Miniaturas)
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Ex plorer\Advanced” /v DisableThumbnailCache /t REG_SZ /d 1 /f

#43 Otimização para o Cache de DNS
REG ADD “HKLM\SYSTEM\CurrentControlSet\Services\Dnscac he\P arameters” /v CacheHashTableBucketSize /t REG_DWORD /d 0×00000001 /f
REG ADD “HKLM\SYSTEM\CurrentControlSet\Services\Dnscac he\P arameters” /v CacheHashTableSize /t REG_DWORD /d 0×00000180 /f
REG ADD “HKLM\SYSTEM\CurrentControlSet\Services\Dnscac he\P arameters” /v MaxCacheEntryTtLimit /t REG_DWORD /d 0×0000fa00 /f
REG ADD “HKLM\SYSTEM\CurrentControlSet\Services\Dnscac he\P arameters” /v MaxSOACacheEntryTtLimit /t REG_DWORD /d 0×0000012d /f

#44 Remover Executar do Menu Iniciar
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v NoRun /t REG_DWORD /d 0×00000001 /f

#45 Esconder Relógio do Windows
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v HideClock /t REG_DWORD /d 0×00000001 /f

#46 Limpar Arquivos Temporários do Internet Explorer
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\In ternet Settings\Cache” /v Persistent /t REG_DWORD /d 0×00000000 /f

#47 Desabilitar a Notificação de Antivírus Desativado
REG ADD “HKLM\Software\Microsoft\Security Center” /v AntiVirusDisableNotify /t REG_DWORD /d 0×00000001 /f

#48 Desabilitar a Notificação de Firewall Desativado
REG ADD “HKLM\Software\Microsoft\Security Center” /v FirewallDisableNotify /t REG_DWORD /d 0×00000001 /f

#49 Desabilitar a Notificação de Atualizações Automáticas Desativada
REG ADD “HKLM\Software\Microsoft\Security Center” /v UpdatesDisableNotify /t REG_DWORD /d 0×00000001 /f

#50 Disabilitar Auto-Run do CD-ROM
REG ADD “HKLM\Software\CurrentControlSet\Services\Cdro m” /v AutoRun /t REG_DWORD /d 0×00000001 /f

#51 Desabilitar o Sistema de Encriptação de Arquivos
REG ADD “HKLM\Software\Microsoft\Windows NT\CurrentVersion\EFS” /v EfsConfiguratiom /t REG_DWORD /d 0×00000001 /f

#52 Desabilitar Mensagem de Notificação de Espaço em Disco Insuficiente
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v NoLowDiskSpaceChecks /t REG_DWORD /d 0×00000001 /f

#53 Disabilitar Beeps de Erros
REG ADD “HKCU\Control Panel\Sound” /v Beep /t REG_SZ /d no /f

#54 Desabilitar Restauração de Sistema
REG ADD “HKLM\Software\Microsoft\Windows NT\CurrentVersion\SystemRestore\” /v DisableSR /t REG_DWORD /d 0×00000001 /f

#55 Desabilitar Windows Messenger
REG ADD “HKLM\Software\Policies\Microsoft\Messenger\Cl ient ” /v PreventRun /t REG_DWORD /d 0×00000001 /f

#56 Disable Windows Xp Firewall
REG ADD “HKLM\System\CurrentControlSet\Serices\SharedA cces s\Parameters\FirewallPolicy\StandardProfile” /v EnableFirewall /t REG_DWORD /d 0×00000000 /f

#57 Mostrar a Versão do Windows no Desktop
REG ADD “HKCU\Control Panel\Desktop” /v PaintDesktopVersion /t REG_DWORD /d 0×00000001 /f

#58 Editar as Informações de Registro do Windows
REG ADD “HKLM\Software\Microsoft\Windows NT\CurrentVersion” /v RegisteredOrganization /t REG_SZ /d CompanyNameHere /f
REG ADD “HKLM\Software\Microsoft\Windows NT\CurrentVersion” /v RegisteredOwner /t REG_SZ /d OwnerNameHere /f

#59 Alterar Diretório do CD do Windows
REG ADD “HKLM\Software\Microsoft\Windows NT\CurrentVersion” /v SourcePath /t REG_SZ /d D:\I836 /f

#60 Alterar a Pasta Root do Sistema [Padrão: C:\Windows]
REG ADD “HKLM\Software\Microsoft\Windows NT\CurrentVersion” /v SystemRoot /t REG_SZ /d C:\Windows /f

#61 Alterar a Descrição do Computador
REG ADD “HKLM\System\CurrentControlSet\Services\Lanman serv er\parameters” /v srvcomment /t REG_SZ /d descrição /f

#62 Habilitar Assistência Remota
REG ADD “HKLM\System\CurrentControlSet\Control\Termina l Server” /v AllowTSConnections /t REG_DWORD /d 0×00000001 /f
REG ADD “HKLM\System\CurrentControlSet\Control\Termina l Server” /v fDenyTSConnections /t REG_DWORD /d 0×00000001 /f
REG ADD “HKLM\System\CurrentControlSet\Control\Termina l Server” /v fAllowToGetHelp /t REG_DWORD /d 0×00000001 /f

#63 Desocultar o Relógio do Windows
REG ADD “HKCU\Software\Microsoft\Windows\CurrentVersio n\Po licies\Explorer” /v HideClock /t REG_DWORD /d 0×00000000 /f

sexta-feira, 17 de abril de 2009

Como configurar um VOIP da cisco PAP2 via telefone.

Obtenha as configurações de rede para o PAP2 com o seu provedor ou administrador de rede (endereço IP, máscara de rede, gateway padrão e servidores de DNS).
Siga os seguintes passos:

Conecte o PAP2 na rede, na energia elétrica e ligue um telefone na linha 1 ou 2.
Retire o telefone do gancho e pressione **** (o menu de configuração via voz será ativado).

Digite 101# e, em seguida, digite 0 para desabilitar o DHCP, finalizando com a tecla #.
Confirme e salve com a tecla 1.

Digite 111# e, em seguida, digite o endereço IP que será utilizado no PAP2 (utilizando o * no lugar do ponto), finalizando com a tecla #.
Confirme e salve com a tecla 1.

Digite 121# e, em seguida, digite a máscara de rede do PAP2 (utilizando o * no lugar do ponto), finalizando com a tecla #.
Confirme e salve com a tecla 1.

Digite 131# e, em seguida, digite o gateway padrão do PAP2 (utilizando o * no lugar do ponto), finalizando com a tecla #.
Confirme e salve com a tecla 1.

Digite 161# e, em seguida, digite o endereço IP do servidor DNS primário (utilizando o * no lugar do ponto), finalizando com a tecla #.
Confirme e salve com a tecla 1.

quinta-feira, 16 de abril de 2009

Impedir placa de ouvir requisições DHCP

Em IP Filter e na placa específica1

;;; blockear requisição DHCP entrante
chain=input mac-protocol=ip dst-port=68 ip-protocol=udp action=drop2

;;; blockear requisição DHCP passante
chain=forward mac-protocol=ip dst-port=68 ip-protocol=udp action=drop3

;;; blockear requisição DHCP sainte
chain=output mac-protocol=ip dst-port=68 ip-protocol=udp action=drop

A partir dai as placas com esta regra não respondem o DHCP

terça-feira, 14 de abril de 2009

quarta-feira, 1 de abril de 2009

quinta-feira, 26 de março de 2009

Thunder Cache - Cache inteligente

O que é?THUNDER CACHE é um sistema que trabalha em conjunto ao Squid, rescrevendo URLs e guardando arquivos para melhorar o desempenho do cache.
Idelizado por Luiz Biazus (luiz@biazus.com)
Programador:Rodrigo Manga (rodrigomanga@yahoo.com.br)
Ele antes chamava-se ECACHE.
Ele é um sistema desenvolvido com PHP e MYSQL, que recebe URLs do SQUID, e faz uma ação, que pode ser simplesmente reescrever a URL para o squid não duplicar arquivos, ou guardar o arquivo em um cache próprio do Thunder Cache.
Ele trabalha com qualquer tipo de arquivo ( e não com somente vídeos como outros sistemas fazem)O diferencial é a quantidade de plugins que dispomos, os principais são do Windows Update, Youtube, 4Shared. E vão ter muito mais plugins, só depende de todos ajudarem.

Existe uma materia bem detalhada sobre o Thunder Cache no site:
http://under-linux.org/b664-thunder-cache-cache-inteligente

Site oficial do Thunder Cache
http://www.thundercache.org/
http://sourceforge.net/projects/ecache

terça-feira, 24 de março de 2009

EyeOS - Sistema Operacional OnLine

O site http://www.eyeos.info/ é um S.O. OnLine com tudo que tem direito.
Vale apena testar.
Tem um artigo bem legal sobre ele, bem aqui: http://www.brogui.com/2007/08/25/eye...cional-online/

HT, Dual Core, Core 2 Duo, Quad Core, Core 2 Quad e Core i7. Quais as diferenças?

O número 2 no título significa uma mudança muito grande no desenvolvimento e arquitetura dos processadores da Intel! Então qual seria a diferença entre um Dual Core x Core 2 Duo, se ambos tem 2 núcleos? Muitas diferenças não estão ligadas em apenas o núcleo, mas o seu tipo de gerenciamento, cache e outros. Abaixo irei citar cada um deles:

HT - (Hyper-Threading) foi o primeiro processador da Intel com esta tecnologia! A grande pergunta é: Ele tem dois núcleos? Não! Ele é ainda um single-core MAS que simula dois núcleos! Se um programa tinha algum thread, o núcleo do HT processava o código principal a este, e uma segunda memória cache contida no HT simulava este código dentro da thread.

Dual-Core - Agora sim, diferente do HT, este tem dois núcleos reais. Vinda da plataforma Centrino baseada do Pentium M, o Dual-Core é praticamente dois processadores dentro da mesma pastilha de silício. Cada núcleo com um cache, tendo um sempre responsável por todos os códigos principais, e o outro responsável sempre pelas thread.

Core 2 Duo - Também com dois caches, mas agora com algumas diferenças. Já baseada do Pentium 4, ele tem também uma divisão interna na pastilha, mas desta vez com um cache apenas sendo dividido pelos dois núcleos, dando um ganho na velocidade de processamento e uma economia maior no gasto de energia. Então, o Core 2 Duo é um processador grudado em outro processador mas que dividem o cache? Basicamente, sim!

Quad-Core - Aqui agora já deixamos de falar de dois núcleos, mas agora de quatro. Precisarei especificar o que ele é? Acho que não! Pois é o mesmo estilo do Dual-Core, quatro processadores dentro da mesma pastilha!

Core 2 Quad - Mesma arquitetura do Core 2 Duo, apenas dizendo, é um Core 2 Duo grudado com outro Core 2 Duo, ficando um cache para cada um.

Core i7 - Agora deixamos de falar de Pentium. Baseado na nova arquitetura da Intel, Nehalen, o Core i7 volta com o sistema Hyper-Threading! Se eu disser que ele é quatro HT's grudados um no outro, estarei falando a mentira mais absurda que existe. Mas, é uma base para você entender. Ele tem 4 núcleos reais, com um outro cache para simulação de dados igual o HT! Então quer dizer que no meu Windows vai aparecer 8 núcleos? Sim!

OBS: Esta materia foi retirada do site: http://under-linux.org/b657-ht-dual-core-core-2-duo-quad-core-core-2-quad-e-core-i7-quais-diferencas.

quinta-feira, 19 de março de 2009

Como configurar uma bridge no Limux.

Este exemplo 1 foi retirado do site:
http://wiki.mandriva.com/en/Docs/SysAdmin/Networking/Bridge

/etc/sysconfig/network-scripts/ifcfg-br0:
DEVICE=br0
TYPE=Bridge
IPADDR=192.168.0.1
NETMASK=255.255.255.0
ONBOOT=yes

/etc/sysconfig/network-scripts/ifcfg-eth0:
DEVICE=eth0
BRIDGE=br0
ONBOOT=yes

/etc/sysconfig/network-scripts/ifcfg-eth1:
DEVICE=eth1
BRIDGE=br0
ONBOOT=yes


Este exemplo 2 foi retirado do site:
http://www.eriberto.pro.br/wiki/index.php?title=Cria%C3%A7%C3%A3o_de_uma_bridge_no_Debian_GNU/Linux

# apt-get install bridge-utils
# ifconfig eth0 127.0.0.2
# ifconfig eth1 127.0.0.3
# brctl addbr br0
# brctl addif br0 eth0
# brctl addif br0 eth1
# ifconfig br0 up

# cat /etc/network/interfaces

auto lo
iface lo inet loopback

auto eth0
iface eth0 inet static
address 127.0.0.2
netmask 255.0.0.0

auto eth1
iface eth1 inet static
address 127.0.0.3
netmask 255.0.0.0

auto br0
iface br0 inet static
address 10.0.0.1
netmask 255.0.0.0
gateway 10.0.0.200
bridge_ports eth0 eth1

sexta-feira, 6 de fevereiro de 2009

Como bloquear programas de comunicação no mikrotik 3.xx

Funciona somente com a versao 3.xx

/ip firewall layer7-protocol
add comment="" name=MSN regexp="ver [0-9]+ msnp[1-9][0-9]\? [\\x09-\\x0d -~]*c\
vr0\\x0d\\x0a\$usr 1 [!-~]+ [0-9. ]+\\x0d\\x0a\$ans 1 [!-~]+ [0-9. ]+\\x\
0d\\x0a\$"
add comment="" name="MSN FT" regexp=\
"^(ver [ -~]*msnftp\\x0d\\x0aver msnftp\\x0d\\x0ausrmethod msnmsgr:)"
add comment="" name=YAHOO regexp=\
"^(ymsgypnsyhoo).\?.\?.\?.\?.\?.\?.\?[lwt].*\\xc0\\x80"
add comment="" name=SKYPE regexp="^..\\x02............."
add comment="" name=SKYPE-TO-PHONE regexp="^(\\x01.\?.\?.\?.\?.\?.\?.\?.\?\\x0\
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4.\?.\?.\?.\?.\?.\?.\?.\?\\xe4\\xe5.\?.\?.\?.\?.\?.\?.\?.\?\\xe5\\xe6.\?\
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xf4\\xf5.\?.\?.\?.\?.\?.\?.\?.\?\\xf5\\xf6.\?.\?.\?.\?.\?.\?.\?.\?\\xf6\
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9.\?.\?.\?.\?.\?.\?.\?.\?\\xf9\\xfa.\?.\?.\?.\?.\?.\?.\?.\?\\xfa\\xfb.\?\
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\?.\?.\?.\?.\?.\?\\xfd\\xfe.\?.\?.\?.\?.\?.\?.\?.\?\\xfe\\xff.\?.\?.\?.\
\?.\?.\?.\?.\?\\xff)"
add comment="" name=AIM regexp="^(\\*[\\x01\\x02].*\\x03\\x0b\\*\\x01.\?.\?.\
\?.\?\\x01)flapontoc_signon.*0x"
add comment="" name=ICQ regexp="^(\\*[\\x01\\x02].*\\x03\\x0b\\*\\x01.\?.\?.\
\?.\?\\x01)flapontoc_signon.*0x"
add comment="" name=IRC regexp="^(nick[\\x09-\\x0d -~]*user[\\x09-\\x0d -~]*:\
user[\\x09-\\x0d -~]*:[\\x02-\\x0d -~]*nick[\\x09-\\x0d -~]*\\x0d\\x0a)"
/ip firewall filter
add action=drop chain=forward comment="" disabled=no layer7-protocol=MSN \
src-address=192.168.0.0/24