平日一直用139的pushmail来及时收看邮件，也就是把公司邮件设置转发到139邮箱，然后通过139邮箱的pushmail推送的手机上。。。

最近几天老有同事说给我发邮件都收到退信信息，但是真实没有被退。测试后得到错误代码，发现得到的是转发错误信息。联想到139时常屏蔽gmail的转发，明白了！

解决方案：通过一个中介，隐藏发送者的邮件地址，造成发送者每次的邮箱地址都不一样，这样139邮箱就无法拒收了。

流程：

1.建立并设置中介邮箱，映射为139邮箱名

2.公司邮件转发到中介邮箱

3.这样发送到公司邮箱的邮件，自动被转发到中介邮箱。通过中介邮箱的伪装，再发送给139邮箱，此时发送的邮箱名不是固定的，不容易拒收。

隐患：中介邮箱必须稳定！

中介邮箱介绍：

Akapost是一个提供Email保密服务的网站，也就是说通过注册Akapost，你可以生成一个username@akspost.com，而这个Email地址是和你的个人的Email是绑定的，下面是Akapost的原理示意图，也就是，你可以以Akapost服务器的名义发出Email，然后Akapost服务器收到Email会转发到你的私人信箱里面。

我平时会需要经常注册一些网站试用网络服务，而又不太想让私人的Email地址在网上流传，所以Akapost的服务还是有些价值的：）

链接;http://www.akapost.com/

详细参见：

http://www.web20share.com/2008/07/akapost-keep-your-email-private.html

感觉不错，推荐下

VHD 应用面越来越广，Windows 7 也将开始直接支持对 VHD 的使用，这意味着什么呢？也许，在未来我们存储文件不单单是放在一个文件夹中携带走，而更多的可能会创建一个 VHD，将相关的文件存储在其中，使我们能更加方面的携带，并且将其挂载到任意的 Windwos 7 系统上，甚至是在虚拟机种将其打开。该功能意义重大，微软360度虚拟化应用正在渗透到每个角落……

在 Windows 7 中创建或添加 VHD 非常简单，真个操作都在磁盘管理中进行，根据如下图所示我们可以轻松的创建一个自定义大小的虚拟磁盘，他可以是动态扩展的虚拟磁盘，也可以是一个固定大小的虚拟磁盘！当然我们也可以通过"Attach VHD"将一个现有的 VHD 添加进来。不过需要注意的是，在实际测试中发现，如果 Attach 的 VHDs 是一个之前 Virtual PC 或 Server 创建的会被拒绝使用。具体原因还有待官方资料解释！

• das.failuredetectiontime - Amount of milliseconds, timeout time for isolation response action(with a default of 15000 milliseconds).
• das.isolationaddress[x] - IP adres the ESX hosts uses for it’s heartbeat, where [x] = 1‐10. It will use the default gateway by default.
• das.usedefaultisolationaddress - Value can be true or false and needs to be set in case the default gateway, which is the default isolation address shouldn’t be used for this purpose.
• das.poweroffonisolation - Values are False or True, this is for setting the isolation response. Default a VM will be powered off.
• das.vmMemoryMinMB - Higher values will reserve more space for failovers.
• das.vmCpuMinMHz - Higher values will reserve more space for failovers.
• das.defaultfailoverhost - Value is a hostname, this host will be the primary failover host.
• das.failuredetectioninterval - Changes the heartbeat interval among HA hosts. By default, this occurs every second (1000 milliseconds).
• das.allowVmotionNetworks - Allows a NIC that is used for VMotion networks to be
• considered for VMware HA usage. This permits a host to have only one NIC configured for management and VMotion combined.
• das.allowNetwork[x] - Enables the use of port group names to control the networks used for VMware HA, where [x] = 0 - ?. You can set the value to be ʺService Console 2ʺ or ʺManagement Networkʺ to use (only) the networks associated with those port group names in the networking configuration.
• das.isolationShutdownTimeout - Shutdown time out for the isolation response “Shutdown VM”, default is 300 seconds. In other words, if a VM isn’t shutdown clean when isolation response occured it’s being powered off after 300 seconds.
• das.bypassNetCompatCheck - Disable the “compatible network” check for HA that was introduced with Update 2. Default value is “false”, setting it to “true” disables the check.

  Virtual Machine Monitoring HA advanced options

• das.failureInterval = The polling interval for failures. Default value is 30.
• das.maxFailureWindows = Minimum amount of seconds between failure. Default value is 3600 seconds, if VM fails within 3600 seconds VM HA doesn’t restart the machine.
• das.maxFailures = Maximum amount of VM failures, if the amount is reached VM HA doesn’t restart the machine automatically. Default value is 3.
• das.minUptime = The minimum uptime in seconds before VM HA starts polling. The default value is 120 seconds.

利用本站系统，弄了一个虚拟频道

http://vmware.u.blogbus.com/

 省我很多事，哈哈

http://blog.chinaunix.net/u/2671/showart.php?id=272067

推荐iozone

更多

http://www.dbanotes.net/database/linux_io_benchmark_tools_compare.html

vRanger Pro
vRanger Pro is the recognized industry-standard backup and restore solution for virtualized environments. Administrators can schedule regular image-level backups of virtual or physical machines — while the machine is still running. Images can be stored either locally in the SAN or sent as compressed files over a WAN to remote locations to support disaster recovery strategies. vRanger Pro also enables restore of individual files efficiently with an explorer tree through which users can easily identify and "grab" needed files.

http://www.vizioncore.com/vRangerPro.html 

与VCB的主要区别：

video tour
http://www.vizioncore.com/Videos/vRangerProOverviewVideo.html

 Vmware and Symantec
http://www.vmware.com/partners/alliances/technology/symantec.html

 Vmware and Netapp
http://www.vmware.com/partners/alliances/technology/netapp.html

Vmware and HP
http://www.vmware.com/partners/alliances/oem/hp.html

更多内容：
http://www.vmware.com/partners/alliances/global-alliances.html

但是它是Free的，而且支持schedule task,应该比VCB强。国外有人推荐，我顺便贴出来share下

具体效果如何，目前比较忙，没时间测试。等测试完，再分享下原理和优缺点

VISBU is free backup software that is run from the Service Console that provides VMDK level backups of any VM on storage accessible by the host. The script can be targeted at any ESX server or VC server. The script is designed to be easy to use and offers all features from a simple menu driven interface, so a non-Linux administrator can use it with the minimum of fuss.

It provides email reports, automated restoration for every backed up VM, scheduling, is DRS aware, and supports backups to SMB, NFS, EXT3, iSCSI and SAN based volumes.

http://engineering.xtravirt.com/products/visbu.html