configuration
postfix is my MTA of choice. I use it for my mailserver because its simplicity , security and sendmail-compatible (the widely used smtp in the world but not as secure). It is also extensible by plugging other servers for various purposes (antispam, antivirus,database etc). I had one problem with file
Dell
來源 http://zh.community.dell.com/techcenter/w/techcenter_wiki/188.aspx 服务器电源功率越大越好吗？ 在戴尔第12代服务器中，每一款机型都有多种功率的电源可以选择。例如在R720中，就可以选择495W、750W、1100W三种功率，还有单电源和冗余双电源的选择。那么到底选择哪一种呢？许多用户考虑到将来的扩展，常常会选用最大的1100W电源配置，这样将来无论是添加硬盘，或者是加PCIe的扩展卡，都能够保证有足够的电源功率，不需要另外购买新电源。那么是否真的就是电源功率越大越好呢？我们来看一下下面这张图： 由于服务器电源做的是交直流转换，转换过程中本身需要消耗一定电力。这张图体现了在不同负载情况下，一个白金电源在不同功率的负载情况下，电源的转换效率曲线图。从图上可以大致看出： * 电源转换效率在低负载情况下是很低的，也就意味着相对要消耗更多的电力在电源本身上 * 随着负载的增加迅速上升，在40%-60%负载时达到最高转换效率 * 然后随着负载功率的上升有略微下降 由此看来，我们应该合理配置
Hardware
Removing and Installing a RAID Controller Module Backup Battery Unit Each RAID controller module has a battery unit that provides backup power for the data cache memory. The battery unit is mounted inside the RAID controller module and connects to the controller circuit board. This section describes how to remove
Install Dell PowerVault Modular Disk Storage Manager – Management Station cd C:\Program Files\dell\MD Storage Manager\client\ SMCli.exe <IP> -c "save storagearray configuration file=\c:\\savefile.scr\" allconfig"; SMCli.exe <IP> -f c:\savefile.scr # IPStor Team have three MD3000 Box
ESXi 5.x To power on a virtual machine from the command line: 1. List the inventory ID of the virtual machine with the command: vim-cmd vmsvc/getallvms |grep <vm name> Note: The first column of the output shows the vmid. 2. Check the power state of the
iDrac
When I tried to connect to the Dell iDRAC6 web interface from firefox (version I am using : 10.0.2) , I got an error on Secure Connection Failed (Error code: sec_error_reused_issuer_and_serial) You need to delete the a firefox profile file “cert8.db” to fix it
configuration
https://code.google.com/p/exfat/ Installation of ExFat process, open Terminal and enter commands: sudo add-apt-repository ppa:relan/exfat sudo apt-get update sudo apt-get install fuse fuse-exfat exfat-utils
configuration
Source http://www.techgyaan.org/2011/09/how-to-install-and-configure-ssmtp-on-html/ Is it possible to have that be sent via an external SMTP server, like G-mail ? Yes, use sSMTP for replace sendmail I have install the ssmtp to CentOS3.9 successfully wget http://ftp.riken.jp/Linux/fedora/epel/4/SRPMS/ssmtp-2.61-15.
configuration
Scenario: A small business with two departments. Each department need their own email domain. Our fellow John has responsibilities in our two departments business. It is pretty sure that he wants to have the same nick name on each department mailbox domain. The space of each created mailbox will be
ESX
To disable VAAI in ESXi/ESX, you must modify these advanced configuration settings: * HardwareAcceleratedMove * HardwareAcceleratedInit * HardwareAcceleratedLocking You can modify these settings using the vSphere Client, vSphere CLI, or a console connection to the ESXi/ESX host. Disabling VAAI using the vSphere Client To disable VAAI using the vSphere Client: 1.
tomcat
http://en.gentoo-wiki.com/wiki/Safe_Cflags/Intel#Atom_230.2C_Atom_330.2C_Atom_N-Series sudo vi /etc//etc/dpkg/buildflags.conf APPEND CFLAGS -march=atom -O2 -fomit-frame-pointer -pipe APPEND CXXFLAGS -march=atom -O2 -fomit-frame-pointer -pipe Save exit dpkg-buildflags CFLAGS=-g -O2 -fstack-protector –param=ssp-buffer-size=4 -Wformat -Wformat-security -Werror=
Maintenance Managing Mailboxes with cyradm Running cyradm The cyradm command is the main tool that Cyrus administrators use. It allows an administrator to create, delete and rename mailboxes and manage quotas and ACLs. Assuming that your system is configured, running cyradm should simply be a matter of typing the command,