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• Windows Network Load Balancing on ESX Cluster with Dell PowerConnect stacks

  - by dunxd

  We recently switched out our Cisco 6500 core switch for a pair of Dell PowerConnect 6248 stacks. Since then, our Network Load Balanced Sharepoint, which runs on two virtual machines on an ESX cluster has been behaving very poorly. The symptoms are that opening and saving documents stored in sharepoint takes a very very long time. There are no errors showing up on the Sharepoint servers or SQL server, just a lot of annoyed users. Initially I thought there was no way NLB could cause this, but as soon as we repointed the DNS records for our intranet to the ip address of one of the web front ends, the problems disappeared. We suspect there is an issue related to multicast in the Dell configs - NLB is configured for multicast, but not IGMP. Has anyone got a similar set up to us and fixed this sort of issue? Sharepoint on VMware ESX, with Dell PowerConnect switches.

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• TMG Forefront Proxy blocking internal HTTP requests

  - by Pascal

  I have TMG Forefront with Proxy installed and configured. However, whenever I make internal HTTP requested to servers on the internal network with a fully qualified dns name, the proxy denies the connection. Denied Connection FRW-02 18/03/2011 20:06:37 Log type: Web Proxy (Forward) Status: 12202 Forefront TMG denied the specified Uniform Resource Locator (URL). Rule: Default rule Source: Internal (10.50.75.21:21492) Destination: Internal (10.50.75.10:8080) Request: GET http://app-01.mydomain.com.br:9871/internalwebserver_deploy/MyServiceService.svc?wsdl Filter information: Req ID: 0a157279; Compression: client=No, server=No, compress rate=0% decompress rate=0% Protocol: http User: anonymous How can I get around this block? This is an internal call, so it should block it. If I use only http://app-01:9871/internalwebserver_deploy/MyServiceService.svc?wsdl, without the domain after the server name, then it doesn't get blocked. 10.50.75.10 is the firewall's ip, and the internal network's gateway.

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• virtual directory make file copy operation extremely slow on UNC Path (IIS 7.5 bug?)

  - by user144737

  When i create a website/virtual directory pointing to UNC path, its make our file copy extremely slow on the UNC path. 6 seconds for file copy (~13 M) on the UNC path without any virtual directory/website pointing to it. over 1 mins. for file copy (same files ~13M) on the same UNC path with virtual directory/website pointing to it. All file copy operation run on web server side. Our setting as below: Web server - Windows Server standard R2 2008 / IIS 7.5 File server - Windows Server standard 2003 I have tested this case on 3 servers (Windows Server standard R2 2008 / IIS 7.5) and got same result. I also tested this case on 2 windows 2003 / IIS 6, it won't slow down the file copy. Is it IIS 7.5 bug? any patch/hotfix to solve this case? Thank you. Gordon

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• How much effort is SQL Server 2008 Administration?

  - by Adrian Grigore

  Hi, I am looking for a suitable hosting environment for an ASP.NET MVC application. One of the options I have is renting a Hyper-V server and installing my license of SQL Server 2008 on it. I'm a bit wary of shared hosting since the one I have tried so far did not seem to have very consistent performance. One potential problem is that I would have I do not not know much about SQL Server administration, so I am not sure if this is a good option. I've been running a failover cluster of two linux dedicated servers for over 5 years now and MySQL never gave me any trouble. But that was Linux, and it might be different with a windows system. Is running a halfway efficient MS SQL Server 2008 difficult? Does it require any in-depth administration knowledge? Or perhaps recurring administration effort (such as keeping the server up to date with the latest patches)? Or is it rather an "install and forget" experience similar to MySQL?

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• Download HP Power Protector for ESXi

  - by Mark Henderson

  The HP PowerProtector user guide states that to install the HP PowerProtector client on an ESXi Host: Download the latest version of HPPP from the HP website (http://www.hp.com/go/rackandpower). The ESXi Server is automatically detected, and a shutdown command script is generated. However in typical HP fashion, after clicking through no less than 6 different links to get to the downloads page, I am presented with: http://h18004.www1.hp.com/products/servers/proliantstorage/power-protection/software/power-protector/pp-dl.html HP Power Protector (HPPP) - Windows HP Power Protector (HPPP) - Linux x86 HP Power Protector (HPPP) - Linux x64 HP Power Protector (HPPP) - Linux IA64 HP Power Protector (HPPP) - HPUX The Linux packages contain an RPM and in no way resemble what is in the HP documentation. None of these are labelled for ESXi. Does anyone know where or how to get the HP Power Protector ESXi client installed?

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• Howto WCF Service HTTPS Binding and Endpoint Configuration in IIS with Load Balancer?

  - by Mike G

  We have a WCF service that is being hosted on a set of 12 machines. There is a load balancer that is a gateway to these machines. Now the site is setup as SSL; as in a user accesses it through using an URL with https. I know this much, the URL that addresses the site is https, but none of the servers has a https binding or is setup to require SSL. This leads me to believe that the load balancer handles the https and the connection from the balancer to the servers are unencrypted (this takes place behind the firewall so no biggie there). The problem we're having is that when a Silverlight client tries to access a WCF service it is getting a "Not Found" error. I've set up a test site along with our developer machines and have made sure that the bindings and endpoints in the web.config work with the client. It seems to be the case in the production environment that we get this error. Is there anything wrong with the following web.config? Should we be setting up how https is handled in a different manner? We're at a loss on this currently since I've tried every programmatic solution with endpoints and bindings. None of the solutions I have found deal with a load balancer in the manner we're dealing. Web.config service model info: <system.serviceModel> <behaviors> <serviceBehaviors> <behavior name="TradePMR.OMS.Framework.Services.CRM.CRMServiceBehavior"> <serviceMetadata httpsGetEnabled="true" /> <serviceDebug includeExceptionDetailInFaults="false" /> </behavior> <behavior name="TradePMR.OMS.Framework.Services.AccountAggregation.AccountAggregationBehavior"> <serviceMetadata httpsGetEnabled="true" /> <serviceDebug includeExceptionDetailInFaults="false" /> </behavior> </serviceBehaviors> </behaviors> <bindings> <customBinding> <binding name="SecureCRMCustomBinding"> <binaryMessageEncoding /> <httpsTransport /> </binding> <binding name="SecureAACustomBinding"> <binaryMessageEncoding /> <httpsTransport /> </binding> </customBinding> <mexHttpsBinding> <binding name="SecureMex" /> </mexHttpsBinding> </bindings> <serviceHostingEnvironment aspNetCompatibilityEnabled="true" /> <!--Defines the services to be used in the application--> <services> <service behaviorConfiguration="TradePMR.OMS.Framework.Services.CRM.CRMServiceBehavior" name="TradePMR.OMS.Framework.Services.CRM.CRMService"> <endpoint address="" binding="customBinding" bindingConfiguration="SecureCRMCustomBinding" contract="TradePMR.OMS.Framework.Services.CRM.CRMService" name="SecureCRMEndpoint" /> <!--This is required in order to be able to use the "Update Service Reference" in the Silverlight application--> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" /> </service> <service behaviorConfiguration="TradePMR.OMS.Framework.Services.AccountAggregation.AccountAggregationBehavior" name="TradePMR.OMS.Framework.Services.AccountAggregation.AccountAggregation"> <endpoint address="" binding="customBinding" bindingConfiguration="SecureAACustomBinding" contract="TradePMR.OMS.Framework.Services.AccountAggregation.AccountAggregation" name="SecureAAEndpoint" /> <!--This is required in order to be able to use the "Update Service Reference" in the Silverlight application--> <endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" /> </service> </services> </system.serviceModel> </configuration> The ServiceReferences.ClientConfig looks like this: <configuration> <system.serviceModel> <bindings> <customBinding> <binding name="StandardAAEndpoint"> <binaryMessageEncoding /> <httpTransport maxReceivedMessageSize="2147483647" maxBufferSize="2147483647" /> </binding> <binding name="SecureAAEndpoint"> <binaryMessageEncoding /> <httpsTransport maxReceivedMessageSize="2147483647" maxBufferSize="2147483647" /> </binding> <binding name="StandardCRMEndpoint"> <binaryMessageEncoding /> <httpTransport maxReceivedMessageSize="2147483647" maxBufferSize="2147483647" /> </binding> <binding name="SecureCRMEndpoint"> <binaryMessageEncoding /> <httpsTransport maxReceivedMessageSize="2147483647" maxBufferSize="2147483647" /> </binding> </customBinding> </bindings> <client> <endpoint address="https://Service2.svc" binding="customBinding" bindingConfiguration="SecureAAEndpoint" contract="AccountAggregationService.AccountAggregation" name="SecureAAEndpoint" /> <endpoint address="https://Service1.svc" binding="customBinding" bindingConfiguration="SecureCRMEndpoint" contract="CRMService.CRMService" name="SecureCRMEndpoint" /> </client> </system.serviceModel> </configuration> (The addresses are of no consequence since those are dynamically built so that they will point to a dev's machine or to the production server)

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• MySQL replication Slave_IO_Running: No

  - by Christy

  Hi all, I have two servers that I am trying to get replication of one database between. I found a setup guide on sourceforge that I followed and I have tried various other settings since then, but no matter what I do, when I start the slave, the 'Slave_IO_Running' setting is always No.... I have no idea why or what to look at, any suggestions are appreciated. The slave setup was: CHANGE MASTER TO MASTER_HOST='myserver.mydomain.net', MASTER_USER='slave_user', 'MASTER_PASSWORD='mypassword', 'MASTER_LOG_FILE='mysql-bin.000011', MASTER_LOG_POS=1368363 (last data from today, trying to do setup again. I deleted and recreated the database on the slave from a new dump and tried to redo the setup.) I have slave_user setup for %, localhost, and the specific IP of the slave computer but nothing seems to be working... Thanks in advance for any advice or suggestions

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• Specify IPSEC port range using ipsec-tools

  - by Sandman4

  Is it possible to require IPSEC on a port range ? I want to require IPSEC for all incoming connections except a few public ports like 80 and 443, but don't want to restrict outgoing connections. My SPD rules would look like: spdadd 0.0.0.0/0 0.0.0.0/0[80] tcp -P in none; spdadd 0.0.0.0/0 0.0.0.0/0[443] tcp -P in none; spdadd 0.0.0.0/0 0.0.0.0/0[0....32767] tcp -P in esp/require/transport; In setkey manpage I see IP ranges, but no mention of port ranges. (The idea is to use IPSEC as a sort of VPN to protect internal communications between multiple servers. Instead of configuring permissions basing on source IPs, or configuring specific ports, I want to demand IPSEC on anything which is not meant to be public - I feel it's less error-prone this way.)

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• L2TP with PEAP authentication from MacOS/iOS

  - by Jose

  Following the recent security advisory, I'm reconfiguring our VPN servers and having trouble. We're using Windows 2008 R2 server for VPN services, running RRAS and NPS on the same server and configure it to use PEAP-EAP-MSCHAPV2 authentiation for all tunnel type(PPTP, L2TP, IKEv2, SSTP), which previously allowed plain MSCHAPv2. But Apple products, MacOS and iOS cannot connect to VPN after this change. I tried to install root certificate used in PEAP transaction but no change. Does anyone know whether MacOS/iOS supports PEAP-EAP-MSCHAPv2 authentication in PPTP/L2TP? If so any tips to make it work? (I know PEAP-EAP-MSCHAPv2 is supported in WPA/WPA2 enterprise) Regards.

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• OpenVPN slow with Firewall enabled on Zyxel ZyWall USG-100

  - by aleroot

  I have an OpenVPN server on a Linux machine, after installing a ZyWall USG-100 I'm experiencing extremely slowness navigating web servers on my remote LAN through the VPN connection, while accessing the web interface of the ZyWall is fast. I have configured everything : the Virtual Server for the OpenVPN Server, the static route as with the replaced router that I had before installing the ZyWall Today. I even added a rule to the firewall that allows connection to the OpenVPN Server machine : but navigation on the LAN through the VPN still slow, it seems that the Firewall is blocking packages, since if I disable the firewall on the USG-100 everything works fast as usual, while with the firewall enabled it is extremely slow. Why ? Do I need to add some other rule to the firewall to speed up ?

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• Server 2003 on domain wont let domain user have local profile

  - by RobW

  I have a few servers that are acting in this behavior, you log in and always get put into a temporary profile. The server is licensed for TS. The user I am testing with has local admin rights so it doesn't seem to be a permission issue on the server. I'll first get a message that the users roaming profile cannot be found, even though we dont use roaming profiles. I then get another message immediately after saying a local profile could not be loaded, so it will only use a temp profile. Any help would be greatly appreciated.

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• Minimizing SQL transaction log file size on developer box running simple recovery model

  - by Anders Rask

  We have alot of SQL servers on development environment where we never take backup of the databases (TFS for code is enough). The (SharePoint) databases are all set to simple recovery model, but the log files, especially for the SharePoint configuration database is growing quite large and filling up our data drive on the SQL server. Since these log files are never used for anything, i would like advice on how to best minimize the size of these log files -or even disable them if possible. I'm not completely sure why the log files grow so large even on simple logging (checked for long running transactions (DBCC OPENTRAN) but found none). I guess the reason for the log files not being truncated is, that we dont take any backups, and hence Checkpoints arent reached. The autogrowth for log files are set to autogrow by 10% restricted to 2 gb, so i guess that is why Checkpoint (70%) arent reached here either. What would be the be best strategy to keep log files small (best case 0) without sacrificing performance (eg VLF fragmentation)?

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• What are industry standards and professional best practices in network hosts naming? [closed]

  - by Ivan

  Possible Duplicate: Naming convention for computers It seems an important and difficult dilemma for me how to name network hosts (routers, servers (while a server can be a router and host diverse services at the same time), virtual machines (while they host important services and can migrate), workstations and notebooks (using pc-username is not the best idea as users may change), printers & MFUs, surveillance IP cameras, etc). Are there known and accepted best practices for this task? Excuse me if there already was a similar question here (I think it probably was), I haven't found it.

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• Exposing BL as WCF service

  - by Oren Schwartz

  I'm working on a middle-tier project which encapsulates the business logic (uses a DAL layer, and serves a web application server [ASP.net]) of a product deployed in a LAN. The BL serves as a bunch of services and data objects that are invoked upon user action. At present times, the DAL acts as a separate application whereas the BL uses it, but is consumed by the web application as a DLL. Both the DAL and the web application are deployed on different servers inside organization, and since the BL DLL is consumed by the web application, it resides in the same server. The worst thing about exposing the BL as a DLL is that we lost track with what we expose. Deployment is not such a big issue since mostly, product versions are deployed together. Would you recommend migrating from DLL to WCF service? if so, why ? Do you know anyone who had a similar experience ? Thank you !

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• Exposing BL as WCF service

  - by Oren Schwartz

  I'm working on a middle-tier project which encapsulates the business logic (uses a DAL layer, and serves a web application server [ASP.net]) of a product deployed in a LAN. The BL serves as a bunch of services and data objects that are invoked upon user action. At present times, the DAL acts as a separate application whereas the BL uses it, but is consumed by the web application as a DLL. Both the DAL and the web application are deployed on different servers inside organization, and since the BL DLL is consumed by the web application, it resides in the same server. The worst thing about exposing the BL as a DLL is that we lost track with what we expose. Deployment is not such a big issue since mostly, product versions are deployed together. Would you recommend migrating from DLL to WCF service? if so, why ? Do you know anyone who had a similar experience ?

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• Setup mod-rewrite

  - by Publiccert

  I'm trying to setup mod-rewrite for a few servers. The code lives in /home/jeff/www/upload/application/ However, this is what's happening. It appears to be a problem with mod-rewrite since it's appending code.py to the beginning of the directory: The requested URL /code.py/home/jeff/www/upload/application/ was not found on this server. Here are the rules. Which one is the culprit? WSGIScriptAlias / /home/jeff/www/upload/application Alias /static /home/jeff/www/upload/public_html <Directory /home/jeff/www/upload/application> SetHandler wsgi-script Options ExecCGI FollowSymLinks </Directory> AddType text/html .py <Location /> RewriteEngine on RewriteBase / RewriteCond %{REQUEST_URI} !^/static RewriteCond %{REQUEST_URI} !^(/.*)+code.py/ RewriteRule ^(.*)$ code.py/$1 [PT] </Location> </VirtualHost>

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• Samba: session setup failed: NT_STATUS_LOGON_FAILURE

  - by stivlo

  I tried to set up Samba with "unix password sync", but I still get logon failure. I am running Ubuntu Natty Narwhal. $ smbclient -L localhost Enter stivlo's password: session setup failed: NT_STATUS_LOGON_FAILURE Here is my /etc/samba/smb.conf [global] workgroup = obliquid server string = %h server (Samba, Ubuntu) dns proxy = no log file = /var/log/samba/log.%m max log size = 1000 syslog = 0 panic action = /usr/share/samba/panic-action %d security = user encrypt passwords = true passdb backend = tdbsam obey pam restrictions = yes unix password sync = yes passwd program = /usr/bin/passwd %u passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* . pam password change = yes map to guest = bad user [www] path = /var/www browsable = yes read only = no create mask = 0755 After modifying I restarted the servers: $ sudo restart smbd $ sudo restart nmbd However I still can't logon with my Unix username and password. Can anyone please help? Thank you in advance!

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• Unable to resolve FQDN, hostname works

  - by HannesFostie

  We are having an issue where computers who are not part of the domain cannot resolve the FQDN of a server (but regular hostname and ip do resolve). The strange thing is that this does work when the computer is added to the network. Our domain name is rather long, its something along the lines of "team.dept.company.com", could that be it? DHCP server passes along the proper DNS, Name and WINS servers, as well as the domain name. I thought that should've solved the problem, but apparently not really. Our domain is still windows2003 EDIT: I am starting to believe I can narrow this down to a problem either with the vmware tools NIC drivers that are embedded in my winPE boot image, or to the fact that I'm trying to do this from inside a VM. Pinging a FQDN at the same time when using a different task sequence on a physical machine works.

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• CentOS 5.5 APIC issue on ESX 4.1 & ML115

  - by Adnan

  Hi, I've just installed vSphere 4.1 on an HP ProLiant ML115 G5 Quad-core and am trying to install CentOS 5.5 as a guest system. However, when the guest boots up I get a calibrate_APIC_clock warning and a kernel panic message. I've come across this knowledge base article on the vmware website which suggests moving the guest onto another Intel based host (!). Funnily enough I don't have a collection of spare host servers sitting around, so can anyone suggest another solution? Alternatively, would installing an earlier version of CentOS get around this issue, or would a yum update put me back to square one? How about BIOS settings, could anything be tweaked there? Thanks.

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• Nagios Terminal Services check?

  - by jldugger

  Most of our servers are licensed for 2 concurrent remote desktop sessions. This is fine, so long as everyone does their administrative task and logs off, but some people accidentally close sessions (disconnect but remain logged in) instead. I know that you can force someone off with the right Admin tools, but it's a bit ugly and may hurt productivity or maybe even the server(?). I was thinking that a nightly Nagios check of remote sessions available nagging people would help enforce build discipline on the subject. Can anyone recommend a service check that can monitor terminal service availability?

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• Force Capistrano to ask for password

  - by Moshe Katz

  I am deploying using Capistrano to a new server and having the following issue. Currently, I cannot add an SSH key to the server to log in with so I must use password authentication. However, I do have a key for another server saved in my local user account's .ssh directory. Here is the error I get when I try to log in: C:\Web\CampMaRabu>cap deploy:setup * executing `deploy:setup' * executing "mkdir -p /home2/webapp1 /home2/webapp1/releases /home2/webapp1/shared /home2/webapp1/shared/system /home2/webapp1/shared/log /home2/webapp1/shared/pids" servers: ["myserver.example.com"] connection failed for: myserver.example.com (OpenSSL::PKey::PKeyError: not a public key "C:/Users/MyAccount/.ssh/id_rsa.pub") How can I get Capistrano to ignore the existence of the key I have and let me log in with a password instead? I tried adding set :password, "myp@ssw0rd" to deploy.rb and it didn't help.

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• Time Machine + Ubee Router?

  - by Charlie

  I can't for the life of me figure this out. I recently had TWC installed in my house, and wanted to disable the NAT and router functions of it. I have a Time Machine hooked up to it from LAN1 (on the Ubee) to the WAN port on the TM. The problems started occurring here. I figured the settings would be these: Ubee Configuration mode: Bridge DHCP: Off TM IPv4: 192.168.100.2 Subnet Mask: 255.255.255.0 Router Address: 192.168.100.1 DNS Servers: 8.8.8.8, 8.8.4.4 Router Mode: DHCP and NAT But using those settings, my TM says "Double NAT", so I have to change it all around to the default settings of the Ubee using NAT. This leads me to believe bridge mode doesn't actually turn off NAT...

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• Supplementary Developer Laptop

  - by David Smith

  I'm looking to buy a laptop with the following specs for a developer. The goal will be to have a development machine supplementing the devs desktop. During work hours the dev will be on a beefy desktop. For working while on the go: trains, client sites, code camps, it would be nice to have a machine which can run Visual Studio 2008 without needing to remote desktop into their primary machine. What do you think is the lowest cost laptop meeting this need? Here are the specs I have in mind: SSD drive 64GB-doesn't need to be huge, most data is stored on servers. Will need to fit Windows 7, IIS, SQL Server, and Visual Studio 2010. RAM-3GB processor =Pentium Core 2 duo Screen size = 14 inches. OS doesn't matter. It will be paved with Windows 7 Ultimate optical drive omitted would be a plus. weight and battery life aren't so important because the machine will be plugged in almost all the time.

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• Massive Network Upgrade

  - by Cliff Racer

  I find myself tasked with organizing an upgrade of our entire Active Directory from server 2003 to 2008. We run a few AD dependant services such as Exchange 2007 SQL Server 2008 SharePoint 2007 All of which we are looking to bring up to date as well with their most recent versions. The original AD was a little bit of a mess (the exchange upgrade from 2003 left some stuff in the AD database that I make references to servers that no longer exist for example). Here is what I want to accomplish Migrate the domain from our 2003 to a NEW clean 2008r2 domain Upgrade from Sharepoint 2007 to 2010 Upgrade Exchange from 2007 to 2010 My question is, in what order do we do things? Can I do a domain upgrade and simply migrate exchange after? On their own, these objectives are complicated enough, orchestrating them in our company while minimizing downtime is making my head spin. I have done a lot of the research on how to do them individually but I am having trouble figuring out how to do them all in concert.

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• NFS caching on Ubuntu

  - by stream

  We run a bunch of ubuntu servers (mostly 8.04 LTS) which all mount an nfs share at /nfs. We use the nfs primarily for two purposes: symlinking config files (such as apache vhosts) reading & writing uploaded files This all works great except it makes us fully dependent on the central NFS server (which is a DRBD cluster with heartbeat failover from primary to secondary, but we've still seen issues). What we'd like is if we could mount the NFS through some local caching layer which would make any file which had previously been read remain available even if /nfs isn't. Writes could be disabled for this period. Searching around it looks like cachefilesd may be an option. Unfortunately, it's only packaged for ubuntu 9.10 & 10.04 it looks like. I was also looking for a FUSE-based solution which might fit the bill, but hadn't found anything yet. Any suggestions would be greatly appreciated!

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