Search Results

Search found 14 results on 1 pages for 'mdmarra'.

Page 1/1 | 1 

• Configuration for a two machine ESXi cluster using VSA to present local storage to VMs

  - by MDMarra

  I'm designing a little vSphere 5 cluster for one of our remote sites. We have some IBM x3650s that have 6x 300GB 10K RPM drives in them, along with dual quad core CPUs and 24GB RAM. Because we use HP P4500 G2s at our primary site, we have licenses available for HP P4000 VSAs. I thought that this would be the perfect opportunity to use them. Below is a basic drawing of what I want to accomplish: I want to run a P4000 VSA on each server and run them in a Network RAID-10 (Lefthand speak for network mirroring, think of it as RAID 1 across nodes or as an active/active storage cluster). I will then present this storage to guests that will run on this mini-cluster. It will be managed by a vCenter Server on our main site. All connections will be GbE with two dedicated to storage. Management and Data will share a pair of connections, since I don't expect there to be high load. These servers are just there to provide directory services, dhcp, printing, etc. Does anyone see anything potentially wrong with this approach? Is this the best way to do this without adding additional dedicated storage heads? Are there any pitfalls in this design, besides the lack of dedicated Data/Mgmt interfaces?

  Read the article

• Sync iCloud bookmarks with Firefox in Windows 7

  - by MDMarra

  I have four devices that I want to sync my bookmarks across: a Mac Mini, a Macbook Air, an iPad2, and a Windows 7 PC. I use Safari on the three Apple products and Firefox 8 on the Windows 7 PC. I use iCloud to sync my bookmarks with the three Apple devices, but this obviously leaves my Windows PC out of the loop. I realize that I can sync the bookmarks to IE and then constantly export them and import them into Firefox, but this is both clunky and not really a "sync" since things that I bookmark on my PC in Firefox won't show up on my other devices. What is the best way to sync my bookmarks from iCloud with a PC running Firefox 8?

  Read the article

• What is Active Directory and how does it work?

  - by MDMarra

  This is a Canonical Question about Active Directory. What is Active Directory? What does it do and how does it work? I find myself explaining some of what I assume is common knowledge about it almost daily. This question will, hopefully, serve as a canonical question and answer for most basic Active Directory questions. If you feel that you can improve the answer to this question, please edit away.

  Read the article

• In a multi-domain forest, what EXACTLY happens when some, but not all, of the Infrastructure Masters are on Global Catalogs?

  - by MDMarra

  There are plenty of TechNet articles, like this one that say that phantom object don't get updated if an Infrastructure Master is also a Global Catalog, but other than that there isn't a lot of in depth information on what actually happens in this configuration. Imagine a configuration like this: |--------------| | example.com | | | | dedicated IM | |--------------| | | | |-------------------| | child.example.com | | | | IM on a GC | |-------------------| Where child has two DCs that are both global catalogs, meaning that the Infrastructure Master role is on a GC. And, example has three DCs with the Infrastructure Master role on a DC that is not a GC. I understand that it's usually best to just make everything a GC and not have to worry about this sort of thing, but assuming that's not the case - what is the exact error behavior that can be expected from a setup like this, and which domain(s) would this behavior manifest in? The child or the parent?

  Read the article

• How is DNS related to Active Directory and what are some common configurations that I should be aware of?

  - by MDMarra

  Please note that I do know the answer to this and have provided one below. I see a lot of newer systems administrators that don't understand the contents of my answer, so I hope that all of the beginner AD DNS questions will be closed as a duplicate of this. If you have a minor improvement, feel free to edit my answer. If you can provide a more comprehensive complete answer, feel free to leave one. How is DNS related to Active Directory and what are some common configurations that I should be aware of?

  Read the article

• HP StorageWorks P4500 G2 Manager Management

  - by MDMarra

  According to the documentation, a management group should have an odd number of managers greater than 1. I have a four node SAN consisting of P4500 G2s. I plan on having two clusters with two nodes each in this management group, i.e.: -Managent_Group1 -Cluster1 -Node1 -Node2 -Cluster2 -Node3 -Node4 Are there any issues running standard managers on Node1, Node2, and Node3? After reading the documentation, I'm still unclear about whether or not cluster membership matters in quorum consistency, or if they don't matter at all.

  Read the article

• How to present shared storage for MS Cluster Services running on vSphere 5

  - by MDMarra

  I've seen two approaches to handling the presentation of shared storage to Windows Server 2008 R2 cluster VMs on VMWare vSphere. One is the traditional method of carving out a LUN on your SAN and presenting it to both hosts through the Microsoft ISCSI software initiator. The other method is to make a vmdk on an existing LUN and attach it to both hosts and made it an independent disk so that it isn't affected by snapshots. Is one way the "correct" way, or are both viable? Is there any advantage or disadvantage to doing either?

  Read the article

• Limit WSUS replication to only certain product classifications

  - by MDMarra

  I have four WSUS 3.0 SP2 servers that are geographically distributed. The server at our main site (we'll call it WSUS1), is the main WSUS server. All manual and auto-approvals happen here. The other three WSUS servers are replicas of this server. Currently, we are only controlling desktop OS updates through WSUS. I would like to control server OS updates through WSUS as well. There is no need for all of these server updates to be on WSUS servers at the remote sites. The only server that would need a copy of them is WSUS1. Is there a way to keep my current infrastructure as-is and add server OS updates only to WSUS1, even though the others are set up as replicas, or will I need to configure an additional WSUS server that's not replicated?

  Read the article

• How are cached Windows credentials stored on the local machine?

  - by MDMarra

  How are cached Active Directory domain credentials stored on a Windows client? Are they stored in the local SAM database, thus making them susceptible to the same rainbow table attacks that local user accounts are susceptible to, or are they stored differently? Note, that I do realize that they are salted and hashed, so as not to be stored in plain-text, but are they hashed in the same way as local accounts and are they stored in the same location? I realize that at a minimum they're be susceptible to a brute force attack, but that's a much better situation than being vulnerable to rainbow tables in the event of a stolen machine.

  Read the article

• Comparing two specific properties of a CSV using Compare-Object isn't giving the expected results

  - by MDMarra

  I have a list of users from two separate domains. These lists are in CSV format and I only care about the SAMAccountName, which is a field in these CSVs. The code that I'm working with is currently: $domain1 = Import-CSV C:\Scripts\Temp\domain1.xxx.org.csv | Select-Object SAMAccountName $domain2 = Import-CSV C:\Scripts\Temp\domain2.xxx.org.csv | Select-Object SAMAccountName Compare-Object ($domain1) ($domain2) This is returning only a handful of results (which aren't accurate) in this format: @{samaccountname=SomeUser} => Obviously, Compare-Object isn't evaluating the objects as strings. How do I make this work?

  Read the article

• DHCP forwarding behind access list on a Cisco Catalyst

  - by Ásgeir Bjarnason

  I'm having some trouble with forwarding DHCP from a subnet behind an access list on a Cisco Catalyst 4500 switch. I'm hoping somebody can see the mistake I'm making. The subnet is defined like this: (first three octets of IP addresses and vrf name anonymized) interface Vlan40 ip vrf forwarding vrf_name ip address 10.10.10.126 255.255.255.0 secondary ip address 10.10.10.254 255.255.255.0 ip access-group 100 out ip helper-address 10.10.20.36 no ip redirects I tried turning on a VMWare machine on this subnet that was configured to use DHCP, but I never got a DHCP response and the DHCP server didn't receive a request. I tried putting the following in the access-list: access-list 100 permit udp host 10.10.10.254 host 10.10.20.36 eq bootps access-list 100 permit udp host 10.10.10.254 host 10.10.20.36 eq bootpc access-list 100 permit udp host 10.10.20.36 host 10.10.10.254 eq bootps access-list 100 permit udp host 10.10.20.36 host 10.10.10.254 eq bootpc That didn't help. Can anybody see what the problem is? I know that the DHCP server works; our whole network is running off of this DHCP server I also know that the subnet works because we have active servers running on the network The DHCP scope is already defined on the DHCP server The subnet is correctly defined on the VMWare server (already servers running on the subnet on VMWare) Edit 2012-10-19: This is solved! The subnet had formerly been defined as a /25 network, but was then expanded into a /24 network. When the DHCP scope was altered after this change it was done incorrectly; the gateway was moved to .254, the leasable IP range was in the lower half of the /24 subnet but we forgot to change the CIDR prefix from /25 into /24. This happened some 2 years ago, and we didn't need to use DHCP on this server network again until this week. Thank you MDMarra and Jason Seemann for looking at the question and trying to troubleshoot. Now I'm wondering if I should mark Jason's answer as the accepted answer (I am new to the Stack Exchange network, so I don't know the etiquette of what to do if I misstated the question like in this case).

  Read the article

• Inactive users in windows server after some time according to first login instead of defining a solid expiration date

  - by smhnaji

  We want to give access to some Windows Server users so they can remotely have access to our server and download from a special folder of the server. The licenses we give to users, are time base. There should be 1 month, 2 month, ..., 1 year, ... licenses. CURRENT SITUATION (WHAT I DON'T WANT): When users are created and added to the OS, a solid expiration date is given. WHAT I WANT: Users' expiration date should be calculated automatically after first login. The user might not need his account right when purchases the license. In another words: When a license of the user we create is purchased at Jan 1st, he should use the license until Feb 1st. No matter whether he really logs in or not. He cannot come Feb 5th and begin using his license because that has expired then. What I want is that when he comes at Feb 5th and begins using, the license update until March 5th. CLARIFICATION (Update after MDMarra's comment) Working environment is Windows Server 2012. By the word 'user', I mean Native Windows Server Users. Whenever a new person purchases a license with me, I create them manually using net user command like this: net user ali pass /add /expires:2013-12-25

  Read the article

• Concurrent users with Quickbooks?

  - by airietis

  I work in a company with 3 people who regularly use the same Quickbooks file. However, they work remotely on different networks. I need to implement a solution that allows all three of us to access Quickbooks at the same time remotely (and each make changes at the same time). We have a spare desktop PC that can be utilized as a server. So, my question is: what is the cheapest and most hassle-free solution to solving this problem? I've considered using application cloud hosting, however, it is very expensive ($40 per user a month) and we are on a tight budget. Is it possible to install Quickbooks on my own server, and have them connect to it remotely? If so, what is the best way to accomplish this? Remote desktop protocol? Or is there a built in feature for this with Quickbooks Premier 2013? EDIT: As MDMarra mentioned, I am looking for a solution that offers true simultaneous access. Will using a dedicated server and having users connect to a VPN be a viable solution?

  Read the article

• Active Directory Time Synchronisation - Time-Service Event ID 50

  - by George

  I have an Active Directory domain with two DCs. The first DC in the forest/domain is Server 2012, the second is 2008 R2. The first DC holds the PDC Emulator role. I sporadically receive a warning from the Time-Service source, event ID 50: The time service detected a time difference of greater than %1 milliseconds for %2 seconds. The time difference might be caused by synchronization with low-accuracy time sources or by suboptimal network conditions. The time service is no longer synchronized and cannot provide the time to other clients or update the system clock. When a valid time stamp is received from a time service provider, the time service will correct itself. Time sync in the domain is configured with the second DC to synchronise using the /syncfromflags:DOMHIER flag. The first DC is configured to sync time using a /syncfromflags:MANUAL /reliable:YES, from a peerlist consisting of a number of UK based stratum 2 servers, such as ntp2d.mcc.ac.uk. I'm confused why I receive this event warning. It implies that my PDC emulator cannot synchronise time with a supposedly reliable external time source, and it quotes a time difference of 5 seconds for 900 seconds. It's worth also mentioning that I used to use a UK pool from ntp.org but I would receive the warning much more often. Since updating to a number of UK based academic time servers, it seems to be more reliable. Can someone with more experience shed some light on this - perhaps it is purely transient? Should I disregard the warning? Is my configuration sound? EDIT: I should add that the DCs are virtual, and installed on two separate VMware ESXi/vSphere physical hosts. I can also confirm that as per MDMarra's comment and best practice, VMware timesync is disabled, since: c:\Program Files\VMware\VMware Tools\VMwareToolboxCmd.exe timesync status returns Disabled. EDIT 2 Some strange new issue has cropped up. I've noticed a pattern. Originally, the event ID 50 warnings would occur at about 1230pm each day. This is interesting since our veeam backup happens at 12 midday. Since I made the changes discussed here, I now receive an event ID 51 instead of 50. The new warning says that: The time sample received from peer server.ac.uk differs from the local time by -40 seconds (Or approximately 40 seconds). This has happened two days in a row. Now I'm even more confused. Obviously the time never updates until I manually intervene. The issue seems to be related to virtualisation and veeam. Something may be occuring when veeam is backing up the PDCe. Any suggestions? UPDATE & SUMMARY msemack's excellent list of resources below (the accepted answer) provided enough information to correctly configure the time service in the domain. This should be the first port of call for any future people looking to verify their configuration. The final "40 second jump" issue I have resolved (there are no more warnings) through adjusting the VMware time sync settings as noted in the veeam knowledge base article here: http://www.veeam.com/kb1202 In any case, should any future reader use ESXi, veeam or not, the resources here are an excellent source of information on the time sync topic and msemack's answer is particularly invaluable.

  Read the article

1