Tuesday, March 3, 2015

Reset Wi-Fi adapter automatically after failure(Автоматическая перезагрузка Wi-Fi адаптера после сбоя)

Возникла проблема – периодически виснет Wi-Fi соединение. Подозрение, что этому может способствовать установленные виртуальные сетевые карты от VMWare Workstation. В связи с этим, если работать с компьютером удалённо (через TeamViewer например), то после зависания сети доступ к компьютеру пропадает …

Решение проблемы:

Скачиваем и устанавливаем программку RedEyes Host Monitor

Эта программка умеет проверять состояние удалённого хоста и при его недоступности выполнять скрипты.

Используем для этой цели Power Shell.

Определяем нужный адаптер командой get-NetAdapter

Далее в меню Settings программы RedEyes Host Monitor выбираем пункт Notifications и настраиваем пункт Execute custom application:

Application: powershell.exe

Command line params: get-netadapter wi-fi | restart-netadapter

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Настраиваем мониторинг на ping например хоста google.com и теперь при сбое адаптера будет автоматически выполняться скрипт powershell:

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Tuesday, May 20, 2014

Cisco Packet Tracer Practice Labs (CCNA)–from Ranet

Part 1: Basic Networking

- 1-1 Basic Configuration http://www.ranet.co.th/packetlab/ccna/NA-1-1-BasicConfig.pka

- 1-2 IPv4 Addressing http://www.ranet.co.th/packetlab/ccna/NA-1-2-IPv4addressing.pka

- 1-3 IPv6 Addressing http://www.ranet.co.th/packetlab/ccna/NA-1-3-IPv6addressing.pka

Part 2: LAN Technology

- 2-1 InterVLAN Routing http://www.ranet.co.th/packetlab/ccna/NA-2-1-InterVLAN.pka

- 2-2 VTP http://www.ranet.co.th/packetlab/ccna/NA-2-2-VTP.pka

- 2-3 STP http://www.ranet.co.th/packetlab/ccna/NA-2-3-STP.pka

Part 3: WAN Technology

- 3-1 PPP - PAP http://www.ranet.co.th/packetlab/ccna/NA-3-1-PPP-PAP.pka

- 3-2 PPP - CHAP http://www.ranet.co.th/packetlab/ccna/NA-3-2-PPP-CHAP.pka

- 3-3 Frame Relay - Multipoint http://www.ranet.co.th/packetlab/ccna/NA-3-3-FR-Multipoint.pka

- 3-4 Frame Relay - Point-to-Pointhttp://www.ranet.co.th/packetlab/ccna/NA-3-4-FR-P2P.pka

Part 4: IP Routing and Services

- 4-1 Static and Default Route http://www.ranet.co.th/packetlab/ccna/NA-4-1-Static-Default-Route.pka

- 4-2 RIP http://www.ranet.co.th/packetlab/ccna/NA-4-2-RIP.pka

- 4-3 OSPF http://www.ranet.co.th/packetlab/ccna/NA-4-3-OSPF.pka

- 4-4 EIGRP http://www.ranet.co.th/packetlab/ccna/NA-4-4-EIGRP.pka

- 4-5 Port Security http://www.ranet.co.th/packetlab/ccna/NA-4-5-PortSecurity.pka

- 4-6 Access Control List http://www.ranet.co.th/packetlab/ccna/NA-4-6-AccessList.pka

- 4-7 NAT http://www.ranet.co.th/packetlab/ccna/NA-4-7-NAT.pka

- 4-8 VPN-IPsec http://www.ranet.co.th/packetlab/ccna/NA-4-8-VPN.pka

- 4-9 DHCP http://www.ranet.co.th/packetlab/ccna/NA-4-9-DHCP.pka

Solutions:

1.1 Basic Configuration:http://www.ranet.co.th/packetlab/ccna/solution/ART-CNA-003-L11-Solution.pdf

1.2 IPv4 Addr: http://www.ranet.co.th/packetlab/ccna/solution/ART-CNA-003-L12-Solution.pdf

1.3 IPv6 Addr: http://www.ranet.co.th/packetlab/ccna/solution/ART-CNA-003-L13-Solution.pdf

2.1 InterVLAN: http://www.ranet.co.th/packetlab/ccna/solution/ART-CNA-003-L21-Solution.pdf

2.2 VTP: http://www.ranet.co.th/packetlab/ccna/solution/ART-CNA-003-L22-Solution.pdf

2.3 STP: http://www.ranet.co.th/packetlab/ccna/solution/ART-CNA-003-L23-Solution.pdf

3.1 PPP PAP: http://www.ranet.co.th/packetlab/ccna/solution/ART-CNA-003-L31-Solution.pdf

3.2 PPP CHAP: http://www.ranet.co.th/packetlab/ccna/solution/ART-CNA-003-L32-Solution.pdf

3.3 FR multipoint: http://www.ranet.co.th/packetlab/ccna/solution/ART-CNA-003-L33-Solution.pdf

3.4 FR p2p: http://www.ranet.co.th/packetlab/ccna/solution/ART-CNA-003-L34-Solution.pdf

4.1 static route: http://www.ranet.co.th/packetlab/ccna/solution/ART-CNA-003-L41-Solution.pdf

4.2 RIP: http://www.ranet.co.th/packetlab/ccna/solution/ART-CNA-003-L42-Solution.pdf

4.3 OSPF: http://www.ranet.co.th/packetlab/ccna/solution/ART-CNA-003-L43-Solution.pdf

4.4 EIGRP: http://www.ranet.co.th/packetlab/ccna/solution/ART-CNA-003-L44-Solution.pdf

4.5 Portsec: http://www.ranet.co.th/packetlab/ccna/solution/ART-CNA-003-L45-Solution.pdf

4.6 ACL: http://www.ranet.co.th/packetlab/ccna/solution/ART-CNA-003-L46-Solution.pdf

4.7 NAT: http://www.ranet.co.th/packetlab/ccna/solution/ART-CNA-003-L47-Solution.pdf

4.8 VPN: http://www.ranet.co.th/packetlab/ccna/solution/ART-CNA-003-L48-Solution.pdf

4.9 DHCP: http://www.ranet.co.th/packetlab/ccna/solution/ART-CNA-003-L49-Solution.pdf

If u hav problem with ip cal, use this http://www.ranet.co.th/IPsubnet01-eng.php

with the instruction in http://www.ranet.co.th/articles/ART-CNA-001-IPv4addressing-Eng.pdf

Source: Cisco Learningnetwork

Tuesday, May 13, 2014

SSTP VPN Error–The parameter is incorrect (Error 87)

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When trying connect to office network via sstp vpn (based on MS TMG 2010), receive error 87 – The parameter is incorrect (параметр задан неверно (Ошибка 87))

SOLUTION:

NPS fails

Method 3: Configure Schannel to no longer send the list of trusted root certificate authorities during the TLS/SSL handshake process
To set this registry entry, follow these steps:
  1. Click Start, click Run, type regedit, and then click OK.
  2. Locate and then click the following registry subkey:

    HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL

  3. On the Edit menu, point to New, and then click DWORD Value.
  4. Type SendTrustedIssuerList, and then press ENTER to name the registry entry.
  5. Right-click SendTrustedIssuerList, and then click Modify.
  6. In the Value data box, type 0 if that value is not already displayed, and then click OK.
  7. Exit Registry Editor.