My previous posts(http://nkush.blogspot.com.au/2012/08/installing-openvpn-22-on-centos-63-64bit.htmlandhttp://nkush.blogspot.com.au/2011/10/installing-openvpn-22-on-centos-57.html)have been on installing OpenVPN on Linux.
This post is slightly different as it installs and configures OpenVPN ona Microsoft Windows Small Business Server (SBS). The SBS installation isalso different from the previous write-ups since this configuration usesEthernet bridging instead of tunneling.
Although SBS comes with Layer2 Tunneling Protocol (L2TP) andPoint-to-point Tunelling Protocol (PPTP) for Virtual Private Network(VPN), some users may want to use an Secure Sockets Layer (SSL) basedVPN such as OpenVPN.
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At 08:59hrs this morning I got a call from a customer who was unable toreceive e-mail. Logging into their server I discovered that there wereindeed messages stuck in the Local Delivery queue. I checked theApplication event logs and found the following event log
EventType:ErrorEventSource:MSExchangeSAEventCategory:MAPI Session EventID:9175Date:8/05/2012Time:9:12:31AMUser:N/AComputer:***DELETED***Description:TheMAPI call ‘OpenMsgStore’ failed with the following error: Theattempt to log on to the Microsoft Exchange Server computer hasfailed.
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