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Update standalone ESX host
Update standalone ESX host If you have a client that just has 1 ESX host then you have to manually update your esx host since you don’t have any update manager or vcenter available Here are steps to update your esx host In this example im upgrading from esx 5.1 tot 5.5 u1 Shutdown all VM’s Put the esx host in maintenance mode Enable ssh access on your esx host Open http firewall port for outgoing traffic in Configuration – Security Profile – Firewall (section) Or use esxcli command: esxcli network firewall ruleset set -e true -r httpClient use follwing esxi shell command to update your esx host, you can use putty for this esxcli software profile update –d https://hostupdate.vmware.com/software/VUM/PRODUCTION/main/vmw-depot-index.xml-p ESXi-5.5.0-20140302001-standard (just wait a few min to see the update start.) Reboot your host Use VMware – v to see the new version is installed Boot up your vm’s if they are not o [...]
SMTPSEND.DNS.NonExistentDomain
my customer ran into a problem that his exchange server just didn't receive any mail no more or couldn't send mail also. when i checked the mail queue i found the following error: 451 4.4.0 DNS query failed. The error was: SMTPSEND.DNS.NonExistentDomain; nonexistent domain after checking everything from connectors and exchange settings, I started to check just everything, and the first steps i always do is: are the TCP/ip config correct on your network card(s). turns out the DNS 2 entry was set to external dns 8.8.8.8 once you remove this DNS entry and only use the internal DNS server everything started working again.
Nested esx 5.5 host inside vSphere
since im trying to set up a home lab i needed to have more esx host. so i started to look into nested ESX host I found a lot of blogs out there for vSphere 5.0 and 5.1. but few for vSphere 5.5 finally this blog helped me on the right path https://communities.vmware.com/docs/DOC-8970 for nested esx 5.0 look at these blogs from William Lam or Duncan Epping. http://www.virtuallyghetto.com/2011/07/how-to-enable-support-for-nested-64bit.html http://www.yellow-bricks.com/2012/06/12/creating-a-nested-lab/ first i checked if my hardware supports nested hardware virtualization https://fqdn of your esxhost or ip address/mob/?moid=ha-host&doPath=capability look for nestedHVsupport if its true. make sure you enable VT-x and EPT or AMD-V and RVI in the BIOS of the host Create your vESX host start the VMware webclient and create a vm with a standard OS red hat enterprise linux 6 (64 bit) but do not start the vm yet, and make sure you chose hardware version 10 (with version 4 to [...]
Projects
Hosted Exchange 2010 to 2013 (Multi tenant) with VMware vSphere 5.5
Project description
Preparation
This is an overview of the project and not a technical document how to migrate to Exchange 2013. In the past we setup a multi tenant environment with Exchange 2010. At that time there was only resources for 1 physical server, wich was sufficient at the time […]
IBM V3700 iSCSI and IBM System x3650 M4
Project description
The Lay-out
We chose this project because we could reduce the cost by selecting iSCSI over fiber
- The environment existed of a mix of Windows 2000, 2003 and 2008 servers.
- Big files and home folders of several GB to 4TB.
- The existing ERP Software had to keep working […]
Lenovo/IBM BladeCenter H
Project description
To be honest the racks were full of old server that havent been touch in over 10 to 15 years. So there were big HP server G2 and G4 generation among them, wich made it easy to reclaim so much rack space. Non the less its was […]