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• Visual Studio 2008 Debugger really slow with SSD

  - by Doug

  Hey guys, my setup is a laptop with Win 7 64bit, VS2008 SP1 on an intel x25-m 4gb RAM with page file turned off (no need) and 2.2 core duo What happens is weird: When i build my project and attach the debugger the symbols load REALLY slowly... like 1 every 5 secs Sometimes the symbols will fail to load at all. This is driving me crazy as this was a freshly installed win 7 box with default VS installation, working on ASP.net web applications... i've never had to use symbol servers or any of that jazz so i'm quite frustrated. With this SSD it should breath fire as it does with loading and doing everything else. Am i missing something?

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• Virus sending phishing emails through exchange server

  - by therulebookman

  It appears that there is a virus on my network somewhere that is sending phishing emails through my exchange server. I can see the messages in message tracking and I see many SMTP errors for NDR's and rejected connections from external servers, but I do not see any SMTP authentications and I have logging up to MAX. How can I find the IP or hostname of the PC that is infected? Or is there some other explanation than virus? Anti-virus scan on server is clean. Server is not an open relay. Thanks

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• Apache server in raspberry PI not visible from outside( public IP)

  - by Kronos

  I have made a fresh install of Arch Linux ARM into a Raspberry PI and I mounted there a LAMP, all fresh. I have another Arch(x86) in my laptop with Apache also there, and as far as I know, two web servers cannot run in the same network segment so, the problem is as follows. I my laptop, having Apache running, if I enter via the public ip of my network everything turns ok and I can see my website but, (obviously turning this server down) if I enter from the public IP with the Apache running in the raspberry pi( yes, only that Apache running) i cannot see my website in there. Also, if I access via local network it is a normal success, I can see my website. So, I can enter my raspberry website only via local but in my other web server i can enter it via local and public. I have the same conf files in both of them so what is the difference? I was planning in making the rpi as a development server. Thanks in advance

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• "A device attached to the system is not functioning" when reconnecting to XenApp 6 session

  - by Paul Doom

  A few of our XenApp 6 customers are seeing issue sometimes when users move from one workstation to another and try to connect to their running session. An error box pops up with "A device attached to the system is not functioning" This is on healthy 2008 R2 servers with all Citrix hotfixes applied. After the error, the user's session must be logged out before they can get back in. This was posted here: http://forums.citrix.com/thread.jspa?threadID=273457 , but is not answered. There is nothing telling in the event logs, and it is an inconsistent problem. Has anyone else seen this issue of found a fix?

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• Hyper-V Cluster with failover - NETWORKING

  - by Adam

  Hi We are looking to setup a 3 node Hyper-V cluster with live migration and failover using: 3 x Dell R710's with dual quad core Xeon & 128 GB RAM & 6 NICs in each 1 x Dell MD 3220i SAN We will be running this setup from a data center and so co-locating our kit. Can anybody explain how we should setup the network connections to make the system redundant? We have looked into this great article but are not sure how to get a 3 server setup correctly and reliably: http://faultbucket.ca/2011/01/hyper-v-failover-cluster-setup/. I believe we need network connections for: live migration, heartbeat, management, hyper-v etc. I assume as we are running it from a DC all IPs will have to be public IPs? Are AD servers will be VMs. One on each Hyper-V server and setup not to be HA.

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• Setting multiple Apache2 VirtualHosts with the same DocumentRoot?

  - by sobi3ch

  I'm trying to accomplish something like this DocumentRoot /www/_offline.com <VirtualHost *:80> ServerName example1.com ServerAlias www.example1.com </VirtualHost> <VirtualHost *:80> ServerName example2.com ServerAlias www.example2.com DocumentRoot /www/_offline.com </VirtualHost> Is it possible to have ONE documentRoot for different domains? VirtualHost configuration: wildcard NameVirtualHosts and _default_ servers: *:80 is a NameVirtualHost default server localhost (/etc/apache2/sites-enabled/000-default:1) port 80 namevhost localhost (/etc/apache2/sites-enabled/000-default:1) port 80 namevhost aa.atd (/etc/apache2/sites-enabled/all-phoenix-domains:2) port 80 namevhost atd.atd (/etc/apache2/sites-enabled/all-phoenix-domains:13) port 80 namevhost test (/etc/apache2/sites-enabled/test:1) Syntax OK

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• MySQL Linked Server and SQL Server 2008 Express Performance

  - by Jeffrey

  Hi All, I am currently trying to setup a MySQL Linked Server via SQL Server 2008 Express. I have tried two methods, creating a DSN using the mySQL 5.1 ODBC driver, and using Cherry Software OLE DB Driver as well. The method that I prefer would be using the ODBC driver, but both run horrendously slow (doing one simple join takes about 5 min). Is there any way I can get better performance? We are trying to cross query between multiple mySQL databases on different servers, and this seems to be method we think would work well. Any comments, suggestions, etc... would be greatly appreciated. Regards, Jeffrey

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• How to change location of Maildir/ in postfix mail system

  - by adesh

  I'm using Postfix with imap and pop servers running on ubuntu linux. I want to change the the location of Maildir folder from user's home directory to some other shared folder so that all mail is in one place. I also have problem sending local mails to users who does not have a home directory (e.g. www-data), the system users created by default. I'm getting the following error. postfix/local[32123]: DCE1D221BBD: to=<www-data@********>, orig_to=<www-data>, relay=local, delay=33, delays=33/0/0/0.12, dsn=5.2.0, status=bounced (maildir delivery failed: create maildir file /var/www/Maildir/tmp/1382169296.P32123.********: Permission denied) I'd like to have a folder structure similar to this: /all-mail/<user-name>/<mail-goes-here>

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• Full speed internal switch bandwidth but per-port set external bandwidth?

  - by garg

  I am in an environment where all the machines are behind a switch that I don't have access to. Each ethernet wall port has limited bandwidth depending on how much has been paid for each port. The problem is that some people have 10Mbps connections and some have 100Mbps connections and this causes problems with local intranet file transfers and operating system/software deployments. Operating systems can take hours to be deployed if the machine is on 10mbps. Do you know if it is possible with most switches to set a rule that would limit bandwidth coming in/going out to an extranet, but keep full bandwidth if the packets are destined to go to a local machine? For example, the internet might be limited to 10Mbps, but internal servers would get gigabit speeds? Thanks

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• Unmounting a zfs pool while it is shared with sharenfs

  - by Ted W.

  I have a Solaris (open indiana) system which is getting poor disk write performance. In order to enable ZIL in this version of zfs I need to add a line to /etc/system. This will not take affect until I've unmounted and remounted the zpool. The trick is that this spool is shared via nfs to about 200 other servers to host users' home directories. I can guarantee that no users will be accessing the disks during this period of maintenance but I would like to avoid having to issue an unmount for 200 systems in order to unmount the disk on the Solaris box. My question is, with sharenfs, is it necessary to have all systems disconnected before unmounting the filesystem on the host? If it's possible, how do you go about it? I've tried unmounting already, the normal way, and it reports the disk is busy. There is no lsof in Solaris and pfiles (I think that's what it was) does not show anything obviously using the mounts.

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• OSX 10.6 integration into NIS/netgroup/automount infrastructure

  - by mdpc

  I have an existing infrastructure where accounts are maintained under NIS (yp) with no local unix accounts. Also, all the standard maps including hosts, mail aliases, netgroups, etc...are maintained in this form. Extensive use of the UNIX/Linux automounter with items scattered over the network on NFS servers. There are NO ACLs on any local or shared files. All mail needs to use basically the nullclient sendmail configuration feeding into a different system. I now have a requirement to integrate an Apple OSX 10.6 system into this environment and make it run seamlessly. My initial reading and second-hand information seems to indicate that this may not be possible on the native OSX 10.6 system. I'm concerned. Any ideas as to how to accomplish this task and make everybody happy? Thanks PS: I have never used an Apple OSX system.

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• How to delete system default printer forms?

  - by matt wilkie

  On Windows there are system default printer forms which can't be deleted from the Print Server Properties dialog. Is there some other way they can be removed? We are never going to use page sizes like Envelope, B5(JIS), US Std Fanfold, etc. and I'd like to save users (and myself!) from having to scroll through a big long list of noise. Our print servers are Windows Server 2003 if that makes any difference. thanks.

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• consequences of changing uid/gid on snow leopard

  - by Peter Carrero

  ok, so I introduced a Mac laptop to my home network of Kubuntu hosts and Fedora servers. Currently I don't have NIS or LDAP setup (I got only 2 users) and I just manually setup the UID/GID on the hosts. I would like to run the following command on my Macbook: dscl . -change /Users/me UniqueID 501 1000 dscl . -change /Users/me PrimaryGroupID 20 503 chown -R 1000:503 /Users/me dscl . append /Groups/staff GroupMembership me Before I go on to hose my new Mac, I would like to know if this is the right thing to do and, if so, what are the adverse consequences I may have. Thanks.

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• Providing high availability and failover using MySQL on EC2

  - by crb

  I would like to have a highly-available MySQL system, with automatic failover, running on Amazon EC2 instances. The standard approach to solving this is problem Heartbeat + DRBD, but I've found a lot of posts suggesting DRBD doesn't work on EC2, though none saying exactly why. Obviously, a serial heartbeat or distinct network is out of the question in the virtualised environment. It would also be good to have the different servers be in different availability zones, but we're getting into a much harder problem there. What are peoples' opinion on having a high uptime solution in "the cloud"?

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• DHCP: server behavior in a two server situation

  - by lang2

  This is a question w.r.t server behavior in the DHCP standard. I've read the RFC and it's still not clear to me. Situation is this: There are two DHCP servers on a network. My client initially get IP address from server A. At some stage, server A goes down. My poor client is sending REQUEST in RENEW and then REBIND state, with no response whatsoever. My questions is: in this situation, should server B response to the REQUEST in REBIND state, e.g. DHCPNAK? Thanks, lang2

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• How to troubleshoot down terminal service/CITRIX sessions, when the process just won't terminate?

  - by Chad

  Running a CITRIX presentation server farm, version 4.5.6 on Windows 2003 sp2. In the CITRIX Access Management Console, I sometimes get a session that shows it's in a down state - but has none of the normal info associated with it (user name, applications, client name, idle time, etc...). It does say which servers it's on, so I check out that server's terminal services manager. I can see the down session but cannot reset it. I get: (Error 7024 - the requested operation cannot be completed because the terminal connection is currently busy processing a connect, disconnect, reset, or delete operation.) So I go to the task manager and look up the processes running under that session id. I see it's one of my published apps, but when I try to end the process - it simply does nothing and the process remains. Any way to get rid of these sessions without a server reboot?

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• Remotely managing Hyper-V VMs from Windows 8 Client

  - by Vazgen

  Currently, I have a core Hyper-V Server hosting VMs for a domain controller and several domain-joined VDI infrastructure servers. The VMs are connected in that domain environment, but the remote management of the physical Hyper-V Server is set up using the same WORKGROUP (as the Windows 8 client I'm managing from) This makes it cumbersome to manage the VMs hosted on the physical server from my remote management Windows 8 client because I can only connect to the physical Hyper-V server and not the individual VMs hosted inside. Can I make my set up more flexible by hosting a second domain controller in a VM hosted on my Windows 8 machine and switching my remote management set up to use the same domain through? Meaning ALL physical and virtual machines including the VDI infrastructure under the same domain? I'm new to this just looking for some suggestions.

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• Ways to polling server status

  - by Yijinsei

  Hi guys, I create the same question is stackoverflow, but I was recommended to post my question here. So I apologies for those who saw this post twice. I am try to create a JSP page that will show all the status in a group of local servers. Currently I create a schedule class that will constantly poll to check the status of the server with 30 second interval, with 5 second delay to wait for each server reply, and provide the JSP page with the information. However I find this way to be not accurate as it will take some time before the information of the schedule class to be updated. Do you guys have a better way to check the status of several server within a local network?

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• How can I move a load of zone records from a web based system to text based one?

  - by Chris Adams

  Hi there, I have a few domains with Dreamhost where I have set a load of records using their web based domain name system, and I've like to move them to another provider that lets me enter info directly as a text file for their name server, bind 9 to use. (If you're interested, I'm moving them to Gandi.net). Previously when I used a cpanel based system to do something similar, there was a tool that let me simply enter a domain name, and any available domains were automagically entered into a system, saving me typing it myself (and bringing down sites with silly typos in the process). What open source tool can I use to query a domain for all the relevant subdomains and records and list them in a format like a zone file, that I can use with other name servers?

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• linux audit - exclude a process that updates the time

  - by user185704

  I have set my auditd rules to log when the system time is changed However, our servers are VMs and thus have problems with the time drifting out. We needed to solve this issue so we used a VMware tool to regularly synchronize the time. My problem now is that my audit logs are overwhelmed with time change entries like this: Jun 1 15:08:39 ***** audispd: node=****** type=SYSCALL msg=audit(1338559719.053:344291): arch=c000003e syscall=159 success=yes exit=5 a0=7ffff2084050 a1=0 a2=144b a3=485449575f4c4c55 items=0 ppid=1 pid=1348 auid=4294967295 uid=0 gid=0 euid=0 suid=0 fsuid=0 egid=0 sgid=0 fsgid=0 tty=(none) ses=4294967295 comm="vmtoolsd" exe="/usr/lib/vmware-tools/bin64/appLoader" key="time_change" How can I exclude this vmware tool from the audit, but still capture a user changing the time? Here are my current audit rules to capture time changes: -a always,exit -F arch=b32 -S adjtimex -S settimeofday -k time_change -a always,exit -F arch=b32 -S clock_settime -k time_change

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• Configure Courier IMAP to deliver mail to multiple hostnames

  - by vy32

  I have a courier IMAP server running on a private server at dreamhost. The private server's hostname is psxxxx.dreamhostps.com. I also have CNAME for the private server, call it mydomain.com. I want to send email to [email protected] and have it delivered to [email protected]. Right now the Courer server on the private server is bouncing the mail. On other mail servers there is a file into which you put all of the names that the host responds to. The names are all synonyms for the host's name, so user@ are equivillent. How do I configure Courer to treat multiple hostnames as synonyms for its host name? Thank you.

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• Configuring Apache reverse proxy

  - by Martin

  I have loadbalancer server and edges. I am trying to configure reverse proxy in order to hide the backend servers PL1,2,3. PL 1,2,3 are not located in same subnet. They are located in different locations. PL1 Lb1 -> PL2 PL3 I tried to configure Apache reverse proxy but it is not sending request to PL1,2,3. Reverse proxy worked only when I configured apache to send request to local server on other port. ProxyRequests Off <Proxy *> Order deny,allow Allow from all </Proxy> ProxyPass /PL1 http://PL1server.com/ ProxyPassReverse /PL1 http://PL1server.com/ The above configuration did not worked. Could you help me to solve the issue. Or is there other proxy types like Squid,Socks5 to solve this issue. Does the reverse proxy fails if we use IP address or domain URL in ProxyPass and ProxyPassReverse ?

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• One-way forest trust between geographically distributed forests using Server 2008 R2

  - by bwerks

  Hi all, I'm planning out a joinder between two domains, as would take place with contracting companies. Forests A and B exist in distant sites, and there is to be a one-way forest trust so that domain users in Forest A can be authenticated on machines in Forest B. In order to facilitate this, each forest's domain controller must be able to contact each other in order to set up & confirm the trust, but my question is what underlying networking magic must take place beneath it. So far the prevailing approach has been to maintain a VPN connection between the two sites, but the technet documentation seems to indicate that DNS forwarding may be the way to go. Is this the case? Furthermore, if DNS will suffice, does that mean that there must be a server running DNS on boundary servers in each domain so that they can be reached from across the internet? How must they be configured? Thanks!

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• arcserve vs backup exec vray

  - by Luigi

  I have to buy one backup software to backup a vmware environment with the following server/applications: mixed microsoft windows 2003/2008/2012 server standard environment sql server 2005/2008 mixed linux centos/ubuntu servers postgresql sap environment exchange 2007 linux fileservers windows fileservers active directory random applications/sqlserver/fileserver on workstations xp/7/8 my hardware is: 5 blades on ibm bladecenter, various san, lto4 on 4gbit fiber channel connected to a windows2003 blade where I will install the backup software (backupexec or arcserve). What are your advice and comments over backupexec vray or arcserve choice ? I know that arcserve have a lower price. I used backup exec for some years but I found it pretty complicated. Thank you.

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• Advantages / disadvantages of having DynDNS access on a computer vs the router

  - by Margaret

  I have a shiny new toy, a Cisco Wireless-N Gigabit Security Router with VPN (WRVS4400N). While looking through the instruction manual, I discovered that it had support for DynDNS built-in. We've currently got the DynDNS client running on one of the servers (that people SSH to, as documented in this question); but the reason for the router update is to move away from SSH to VPN. To that end, is there any difference in behaviour/functionality/maintainability to run it off the computer, as opposed to the router? Thus far, DynDNS has more or less a set-and-forget setup, but since the feature was there, I wanted to know if it was a better location for the process...

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