Server Fault Weekly Newsletter - Wednesday, April 29, 2015

Top new questions this week: Why is it important that servers have the exact same time? I have read multiple times (although I can't find it right now) that data centers take great effort to make sure that all server have the exact same time. Including, but not limited to worrying about ... time-synchronization   asked by Jens Schauder 28 votes answered by Michael Hampton 44 votes Software vs hardware RAID performance and cache usage I've been reading a lot on RAID controllers/setups and one thing that comes up a lot is how hardware controllers without cache offer the same performance as software RAID. Is this really the case? I ... raid performance lsi   asked by ItsJustMe 15 votes answered by shodanshok 28 votes DFSR-related WMI info is missing OS: Server 2012 Core and Server 2012 R2 Core. DFS-Replication is installed and appears healthy. I am using WMI to collect information from DFSR replication members. The queries work on many of the ... windows windows-server-2012 wmi   asked by Ryan Ries 7 votes answered by Ryan Ries 7 votes How to clear Exchange mail queues using PowerShell for a specific user Recently, my organization were victim of a spam attack. Sadly, some users provided their email and password. The attacker set up a long queue of emails to be sent (from the victims account). We had ... exchange powershell   asked by Vinc 웃 5 votes answered by longneck 5 votes Can you use configuration management (Puppet/Chef) behind a firewall? I'm tasked with designing and implementing configuration management (Chef) for a infrastructure where the production servers are completely segmented and isolated behind a jump box. ... chef   asked by spuder 5 votes answered by gWaldo 3 votes Is it possible to tell whether two IP's belong to the same server? Given two public IP's and the knowledge that are both on the same /27 network would it be possible to determine from a remote location (i.e. different country) if they belong to one or two servers? networking   asked by Michelle 4 votes answered by Sven 8 votes Can windows enable delegation across domains? I have two domains foo.local test.local I can run powershell hyper-v cmdlets against the test.local hyper-v server if I am using a VM that is in the test.local domain. Get-VM -ComputerName ... hyper-v delegation   asked by spuder 4 votes answered by John 3 votes Greatest hits from previous weeks: Check if port is open or closed on a Linux server? How can I check if a port is open or closed on a Linux server? linux port   asked by James Anderson 25 votes answered by joschi 32 votes How to sleep in a batch file? How to pause execution for a while in a Windows batch file between a command and the next one? windows batch-file batch   asked by Massimo 41 votes answered by Massimo 72 votes Can you answer these? Page served by tomcat image server by Apache I need to configure Apache to call Tomcat to serve a page and this page has an image on /image folder called logo that should be served by Apache. This is the Apache virtual host: <VirtualHost ... apache-2.4 tomcat7   asked by AFS 2 votes Why does requesting GPUs as a generic resource on a cluster running SLURM with the built-in plugin fail? Disclaimer: This post is quite long as I tried to provide all relevant configuration information. Status and Problem: I adminster a gpu cluster and I want to use slurm for job management. ... cluster hpc job-scheduler   asked by Pixchem 4 votes Is there a reason NOT to install the RSAT-ADDS tools on an Exchange 2013 CAS server? I would've thought I already knew this answer. Maybe I'm just being paranoid. I have a need to run a local script on a CAS server that would in turn utilize the Active Directory cmdlets. I need to ... exchange-2013   asked by TheCleaner 3 votes

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