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• Windows Server 2008 R2 Print Server - Change Printer Names on All Client Systems

  - by Jeramy

  I have a Windows Server 2008 R2 print server set up hosting out multiple printers to my end users. I would like to change the naming convention for all of the printers hosted on the print server and want this change reflected on the client end. For example: I have a HP4000 printer named "Cottage" on the print server. I want to rename the printer "HR-1stFloor-220a" on the print server and I want this printer to appear on every client system with the new name. Simply renaming the printer on the server automatically creates a link from the old printer name to the new one, so all the clients work but the actual name, from their perspective, has not changed. Renaming the share name also does not visibly effect the end user (though it does update the port information). I would like to have the names of the printers be meaningful information regarding department and location, but this means that when they change hands or move I would need to update this information, and currently I am not seeing a way short of writing custom start-up scripts and remove/replacing them through AD. Is there a simple way of accomplishing this task? Thank you for your help.

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• Reverse Proxies and AJAX

  - by osij2is

  A client of ours is using IBM/Tivoli WebSEAL, a reverse-proxy server for some of their internal users. Our web application (ASP.NET 2.0) and is a fairly straightforward web/database application. Currently, our client users that are going through the WebSEAL proxy are having problems with a .NET 3rd party control. Users who are not going through the proxy have no issues. The 3rd party control is nothing more than an AJAX dynamic tree that on each click requests all the nodes for each leaf. Now our clients claim that once users click on a node in the control, the control itself freezes in such a way that they don't see anything populate. Users see "Loading..." message appear but no new activity there afterwards. They have to leave the page and go back to the original page in order to view the new nodes. I've never worked with a reverse proxy before so I have googled quite a bit on the subject even found an article on SF. IBM/Tivoli has mentioned this issue before but this is about all they mention at all. While the IBM doc is very helpful, all of our AJAX is from the 3rd party control. I've tried troubleshooting using Firebug but by not being behind the reverse proxy, I'm unable to truly replicate the problem. My question is: does anyone have experience with reverse proxies and issues with AJAX sites? How can I go about proving what the exact issue is? Currently we're negotiating remote access so assume for the greater part that I will have access to a machine that's using the WebSEAL proxy. P.S. I realize this question might teeter on the StackOverFlow/ServerFault jurisdictional debate, but I'm trying to investigate from the systems perspective. I have no experience with reverse proxies (and I'm unclear on the benefits) and little with forwarding proxies.

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• To clone or to automate a system installation?

  - by Shtééf

  Let's say you're setting up a cluster of servers performing the same task. Or say you're just setting up a bunch of different servers, but you expect to use a base configuration on all of your servers. Would it be better practice to create a base image and clone it, or to automate the installation and configuration? I occasionally end up in this argument with my boss, in situations where we're time-pressed. When he sees me struggle with perfecting the automation, his suggestion is often to clone the entire disk to the other machines. But my instinct has always been to avoid cloning. This is mostly from an Ubuntu perspective, but the question is fairly general. My reasons for avoiding cloning are: On a typical install, even if it's fresh, there are already several unique identifiers installed: filesystem UUIDs, SSH host keys, among others. These would have to be regenerated. Network needs to be reconfigured for each clone. This would need to be done off-line, of course, or the settings will conflict with other machines on the network. On the other hand, some of the cloning advantages are quite clear as well: (Initially?) less effort required than automating configuration. Tools exist to quickly address (some) of the above disadvantages. (I can see right through my own bias there.)

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• Asterisk/FreePBX: Allow other Google Talk clients to ring when using motif module

  - by larsks

  I've recently installed FreePBX to act as a link between a SIP soft phone and my Google Talk account. It was easy to set up and outbound calls work just fine, but I've run into two problems with inbound calls that I'm not sure how to resolve. I'm using an inbound route to forward all calls from Google to my soft phone. If the soft phone is not currently registered, Asterisk answers and immediately generates a fast-busy signal (reporting CHANUNAVAIL in the logs), and the call is lost. If the soft phone is registered, Asterisk "answers" the call before rining the soft phone, which means that other Google Talk clients never ring (since from their perspective someone has answered the call). For solving (1) seems like I could use the ChanIsAvail() function (or this answer) to prevent Asterisk from answering in the event that the phone isn't registered. However, I'm not sure what to do about (2), because the behavior I want is for Asterisk to not "answer" the call until I answer the call on the soft phone. How do I configure Asterisk (ideally within the FreePBX framework) such that I can continue to receive calls at other Google Talk clients in addition to forwarding them to a SIP phone?

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• Sharing large (multi-Gb) files with clients

  - by Tim Long

  I wasn't sure if this was the best place for this question, but I think it is squarely in the realm of the IT admin so that's the reason I put it here. We need to share large files (several Gigabytes) with external clients. We need a simple way of reliably and automatically publishing these files so that clients can then download them. Our organization has Windows desktops and a Windows SBS 2011 server. Sharing from our server is probably suboptimal from the client's perspective, because of the low upstream bandwidth of typical ADSL (around 1 Mbps) - it would take all day (9 hours for a 4Gb file) for the client to download the file. Uploading to a 3rd party sever is good for the client but painful for us, because we then have to deal with a multi-hour upload. Uploading to a third-part server would be less problematic if it could be made reliable and automatic, e.g. something like a Groove/SharePoint Workspace, simply drop the file in and wait for it to synchronize - but Groove has a 2Gb limit which is not big enough. So ideally I'd like a service with the following attributes: Must work for files of at least 5Gb, preferably 10Gb Once the transfer is started, it must be reliable (i.e. not sensitive to disconnections and service outages) and completely automatic Ideally, the sender would get a notification when the transfer completes. Has to work with Windows based systems. Any suggestions?

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• What are the advantages and disadvantages of the various virtual machine image formats?

  - by Matt

  Xen and Virtualbox etc both support a range of different virtual machine image formats. These are: vmdk, vdi, qcow & qcow2, hdd & vhd. Without any bias toward a particular product, I'm wanting to know what are the advantages and disadvantages of the various formats both from a features perspective, robustness and speed? One piece of info I discovered in a forum post was this: "The major difference is that VDI uses relatively large blocks (1MB) when growing an image, and thus has less overhead for block pointers etc. but isn't ultimately space efficient in the sense that if a single byte is non-zero in such a 1MB block the entire space is used. VMDK in contrast uses 64K blocks, and thus has more management overhead and generally a bit less disk space consumption What offsets this is that VDI is more efficient when it comes to snapshots." You might be thinking, I want to know this because I want to know which format to choose? Not exactly, I'm developing some software which utilises these formats and want to support one or more of them. Simplicity, large disks and ease of development are my main drivers.

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• Does a 3ware "ECC-ERROR" matter on a JBOD when I have ZFS?

  - by Stefan Lasiewski

  I have a FreeBSD 8.x machine running ZFS and with a 3ware 9690SA controller. The 3ware controller shows an ECC-ERROR with one of the disks: //host> /c0 show VPort Status Unit Size Type Phy Encl-Slot Model ------------------------------------------------------------------------------ p0 OK u0 279.39 GB SAS 0 - SEAGATE ST3300657SS p1 OK u0 279.39 GB SAS 1 - SEAGATE ST3300657SS p2 OK u1 931.51 GB SAS 2 - SEAGATE ST31000640SS p3 ECC-ERROR u2 931.51 GB SAS 3 - SEAGATE ST31000640SS p4 OK u3 931.51 GB SAS 4 - SEAGATE ST31000640SS /c0 show events shows no ECC errors in it's recent history. ZFS does not currently detect any errors. zpool status says No known data errors My question: Is this ECC-ERROR something that I need to be concerned about? According to the 3ware CLI 9.5.2 Manual, an ECC-ERROR means that the 3ware controller caught a read-error for one or more sectors on this drive. This sometimes occurs when a RAID array is recovering from a failed disk. I believe that ECC-ERRORS can also be detected when the 3ware Controller verifies each disk. None of the drives have failed and thus there was no drive rebuild, so I assume that 3ware discovered a bad sector when it ran it's weekly auto-verify scan of the disks. Is this a safe assumption? According to our logs, ZFS has not detected any bad sectors on this drive. ZFS can work around read errors -- if ZFS detects a bad sector on the drive, it will simply mark that sector as bad and never use it again. From the ZFS perspective one bad sector isn't a big deal, although it might indicate that the drive is starting to go bad.

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• Why can a local root turn into any LDAP user?

  - by Daniel Gollás

  I know this has been asked here before, but I am not satisfied with the answers and don't know if it's ok to revive and hijack an older question. We have workstations that authenticate users on an LDAP server. However, the local root user can su into any LDAP user without needing a password. From my perspective this sounds like a huge security problem that I would hope could be avoided at the server level. I can imagine the following scenario where a user can impersonate another and don't know how to prevent it: UserA has limited permissions, but can log into a company workstation using their LDAP password. They can cat /etc/ldap.conf and figure out the LDAP server's address and can ifconfig to check out their own IP address. (This is just an example of how to get the LDAP address, I don't think that is usually a secret and obscurity is not hard to overcome) UserA takes out their own personal laptop, configures authentication and network interfaces to match the company workstation and plugs in the network cable from the workstation to their laptop, boots and logs in as local root (it's his laptop, so he has local root) As root, they su into any other user on LDAP that may or may not have more permissions (without needing a password!), but at the very least, they can impersonate that user without any problem. The other answers on here say that this is normal UNIX behavior, but it sounds really insecure. Can the impersonated user act as that user on an NFS mount for example? (the laptop even has the same IP address). I know they won't be able to act as root on a remote machine, but they can still be any other user they want! There must be a way to prevent this on the LDAP server level right? Or maybe at the NFS server level? Is there some part of the process that I'm missing that actually prevents this? Thanks!!

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• Software to clean up photos of whiteboards and documents?

  - by Norman Ramsey

  I take a lot of photos of whiteboards, blackboards, and so on for teaching purposes (examples online through May 2010). I'm interested in cleaning them up for archival purposes, preferably using Linux. Commercial products ClearBoard and PhotoNote are priced a little aggressively for my purposes, plus my students would like to have this capability too. Does anyone know of any good, open source software for Converting photographs to images with just a few colors? Eliminating perspective distortion? Removing unwanted junk from around the edges of an image? or anything like that? I'm imagining that I start out with a picture of my whiteboard using red and black markers, and I end up with a three-color image using just white, red, and black. Or I photograph a laser-printed document and end up with a clean black-and-white image. I have tried standard tools that reduce the number of colors in an image, and they do a terrible job—probably because they are trying to reproduce the uneven illumination of the original image. Command-line Linux tools would be ideal.

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• Pitfalls to using Gluster as a home/profile directory server?

  - by Bart Silverstrim

  I was asking recently about options for divvying up access to file servers, as we have a NAS solution that gets fairly bogged down when our users (with giant profiles, especially) all log in nearly simultaneously. I ran across Gluster and it looks like it can cluster different physical storage media into a single virtual volume and share it out like a virtual NAS from the client perspective and it support CIFS. My question is whether something like this would be feasible to use for home and profile directories in an active directory environment. I was worried about ACL's, primarily, as I didn't think CIFS was fine-grained enough to support NTFS permissions and it didn't look like Gluster exports those permission levels, just the base permissions for basic file sharing. I got the impression that using Gluster would allow for data to be redundant across multiple servers and would speed up access to the files under heavy load, while allowing us to dynamically boost storage capacity by just adding another server and telling Gluster's master node to add that server. Maybe I'm wrong with my understanding of it though. Anyone else use it or care to share how feasible this is?

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• cfengine3 file_copy only on source side change

  - by megamic

  I am using the 'digest' copy method for all file copy promises, because of the way we package and deploy software, I cant rely on mtime for the criteria for updating files. For various reasons, I am not employing the client-server approach with a central configuration server: rather we package and deploy our entire configuration module to each server, so from cf-engine's perspective, the source and target are local on the server it is running. The problem I am having with this approach is that the source will always update the target when they differ - which is what I want most of the time, usually because the source has been updated. However, like many other cfengine users, we are running an operational environment, where occasionally emergency fixes have to be applied immediately - meaning we don't have time to rebuild and redeploy a configuration module, and the fix will often be applied by deploying a tarball with specific changes. Of course this is problematic if cf-engine comes along 5 mintues later and reverts the changes. What we would like is to be able to make small, incremental changes to our servers, without them being reverted, until the next deployment cycle at which time the new source files would be copied. We do not consider random file corruption or mistaken changes to involve enough risk to warrant having cfengine constantly revert deployments to their source copy - the ability to deploy emergency fixes and have them stay that way until the next deployment would be of much greater value and utility. So, after all that, my question is this: is cf-engine capable of detecting whether it was the source or target that changed when the files differ, and if so, is their a way to use the 'digest' copy method but only if the source side changed? I am very open to other ideas and approaches as-well, as I am still quite new to this whole configuration management thing.

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• Network Explorer Intermittently Fails to Display all Computers in Work Group

  - by graf_ignotiev

  I run a small computer lab of 10 computers and occasionally, when using the network explorer (a.k.a Network Browser) some or all of the remote computers will fail to appear. If I try to access a remote computer by its name I get an unspecified error (code 0x80004005), but I am still able to access it with the computer's IP address. The strangest part is that the problem will inexplicably go away after waiting awhile. Each computer is running Windows 7 x64 Enterprise and has identical hardware, software and configuration. They are all on the same subnet and in the same workgroup. I've spent days researching the problem and have tried the following solutions: Updated the BIOS, chipset and network adapter drivers Changed Power Settings in Network Adapter Properties so that the computer will not turn it off Disabled the Computer Browser service Changed the DHCP node type to broadcast Reviewed the Event Viewer logs Steps 3 and 4 have seemed to help the problem a little bit, but not completely. I'm beginning to suspect that the problem might lie with our router which is a ZyXEL ZyWALL 2WG, as the packets sent by Network Discovery may not be returning in time, but I wanted to get some perspective in the issue before I went any further.

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• best-practices to block social sites

  - by adopilot

  In our company we have around 100 workstation with internet access, And day by day situation getting more worst and worst from perspective of using internet access for the purpose of doing private jobs, and wasting time on social sites. Open hearted I am not for blocking sites like Facebook, Youtube, and others similar but day by day my colleagues do not finishing his tasks and while I looking at their monitor all time they are ruining IE or Mozilla and chat and things like that. In other way Ill like to block youtube sometime when We have very poor internet access speed, Here is my questions: Do other companies blocking social sites ? Do I need dedicated device for that like hardware firewall, super expensive router Or I can do that whit my existing FreeBSD 6.1 self made router with two lan cards and configured nat to act like router. I was trying do that using ipfw and routerfirewall but without success, My code looks like ipfw add 25 deny tcp from 192.168.0.0/20 to www.facebook.com ipfw add 25 deny udp from 192.168.0.0/20 to www.facebook. ipfw add 25 deny tcp from 192.168.0.0/20 to www.dernek. ipfw add 25 deny udp from 192.168.0.0/20 to www.dernek. ipfw add 25 deny tcp from 192.168.0.0/20 to www.youtube. ipfw add 25 deny udp from 192.168.0.0/20 to www.youtube.com

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• What Wireless Router/ADSL Modem to get? N-band a must!!

  - by JJarava

  I'm looking for a Dual-N band Router OR ADSL Gateway and I'd like some recommendations. Situation: I have a 802.11b/g ADSL gateway provided by my telco, but the WIFI signal won't cover all the house (especially the living-room, so my tv-connected Mac Mini has poor to no internet access). So I'm looking to either replace the DSL modem with a N-enabled one, or to add a Router to the mix. I've had a modem+router setup for many years, and I know the advantatges (double NAT, double FW = more security) and issues (more complex to troubleshoot, two possible points of failure), so I'd rather live with a single (ADSL Gateway) device, if possible. Requirements: Dual-N Band (300 Mbs WIFI) 1 GB Ethernet ports ADSL2+ support (if it's a ADSL gateway, which would be desirable) "Best" range and speed possible Nice to have: USB port to share disks/printers on the network Media streaming I've been a long time user of Linksys, so googling around I found the WRT610N (http://www.linksysbycisco.com/US/en/products/WRT610N) for a "Pure Router" perspective, and it's one of those that Linksys styles "N++" (http://www.linksysbycisco.com/US/en/promo/Promotion-Go-Wireless?stepname=Promotion-Step-Go-Wireless-High-Performance) But I haven't been able to find similar "ADSL" gateways. I've found the WAG320N, but there is little to no info in the Linksys site (i.e., i don't know if it's Dual Band, or if it has GB ethernet) Any opinions/recommendations of other products/suggestions are more than welcome.

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• How to configure multiple virtual hosts for multiple users on Linux/Apache2.2

  - by authentictech

  I want to set up a virtual hosting server on Linux/Apache2.2 that allows multiple users to set up multiple website domains as would be appropriate for commercial shared hosting. I have seen examples (from my then perspective as a shared hosting customer) that allow users to store their web files in their user home directory with directories to correspond to the virtual host domain, e.g.: /home/user1/www/example1.com /home/user2/www/example2.com instead of using /var/www Questions: How would you configure this in your Apache configuration files? (Don't worry about DNS) Is this the best way to manage multiple virtual hosts? Are there others? What safety or security issues do you think I should be aware of in doing this? Many thanks, folks. Edit: If you want to only answer question 1, please feel free, as that is the most urgent to me at this moment and I would consider that an answer to the question. I have done it for myself since posting, but I am not confident that it's the best solution and I would like to know how an experienced sysadmin would do it. Thanks.

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• PDU management interface has low availability - product flaw or isolated issue

  - by DeanB

  Our colocation provider has supplied us with APC AP7932 switched 0U PDUs as part of several cabinets they provide us. We have had a lot of trouble with the network management aspect of these PDUs, which I'll describe below. We are moving to cage space in the same datacenter, and plan to provide our own PDUs, so I'd like to determine which enterprise-grade PDUs have been reliable performers from a remote management perspective. Our colo-provided PDUs are configured to support management via an SSL web UI and via telnet. We updated the firmware on all of them to the current version as of NOV2011. They respond to pings reliably, and we have no reason to suspect a network layer issue. However, we experience frequent hangs, timeouts, disconnects, and general unavailability from the embedded management host in all of the PDUs. We occasionally have to restart the microcontroller on the PDU to recover from what appears to be an occasional hard fault. The outlets stay powered (thankfully), but the management aspect is so unreliable that it has become an ops liability - we can't be confident that we could get into the PDU to power cycle a host if we needed to. We have 3 PDUs that all exhibit identical behavior. There are many manufacturers of enterprise-grade 0U switched PDUs, all with comparable features. If I looked at the datasheet for our current PDUs, they would appear to be a good fit -- only with the benefit of suffering through using them do we know to avoid them. I'd like to avoid picking a PDU that looks fine on paper, but has similar reliability issues. What has been others' experience with switched PDUs? Is this level of flakiness normal?

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• iptables, blocking large numbers of IP Addresses

  - by Twirrim

  I'm looking to block IP addresses in a relatively automated fashion if they look to be 'screen scraping' content from websites that we host. In the past this was achieved by some ingenious perl scripts and OpenBSD's pf. pf is great in that you can provide it nice tables of IP addresses and it will efficiently handle blocking based on them. However for various reasons (before my time) they made the decision to switch to CentOS. iptables doesn't natively provide the ability to block large numbers of addresses (I'm told it wasn't unusual to be blocking 5000+), and I'm a bit cautious over adding that many rules into an iptable. ipt_recent would be awesome for doing this, plus it provides a lot of flexibility for just severely slowing down access, but there is a bug in the CentOS kernel that is stopping me from using it (reported, but awaiting fix). Using ipset would entail compiling a more up-to-date version of iptables than comes with CentOS which whilst I'm perfectly capable of doing it, I'd rather not do from a patching, security and consistency perspective. Other than those two it looks like nfblock is a reasonable alternative. Is anyone aware of other ways of achieving this? Are my concerns about several thousand IP addresses in iptables as individual rules unfounded?

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• CentOS centralised logging, syslogd, rsyslog, syslog-ng, logstash sender?

  - by benbradley

  I'm trying to figure out the best way to setup a central place to store and interrogate server logs. syslog, Apache, MySQL etc. I've found a few different options but I'm not sure what would be best. I'm looking for something that is easy to install and keep updated on many virtual machines. I can add it to a VM template going forward but I'd also like it to be easy to install to keep the VM complexity down. The options I've found so far are: syslogd syslog-ng rsyslog syslogd/syslog-ng/rsyslog to logstash/ElasticSearch logstash agent in each log "client" to send to Redis/logstash/ElasticSearch And all sorts of permutations of the above. What's the most resilient and light from the log "client" perspective? I'd like to avoid the situation where log "clients" hang because they are unable to send their logs to the logging server. Also I would still like to keep local logging and the rotation/retention provided by logrotate in place. Any ideas/suggestions or reasons for or against any of the above? Or suggestions of a different structure entirely? Cheers, B

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• Best tool for monitoring backups, etc. and trending statstics from that data

  - by Randy Syring

  I have done some research on nagios, opennms, and zenoss but am not confident that I have found what I am looking for. The main driving force for me right now is being able to monitor backups. This includes mysql, mssql, and eventually some file system backups. We have a tool that wraps the backup process for these different systems and collects statistics. So, items like: number of databases backed up size of db backup file size of db backup file compressed time to make backup time to zip file I want to be able to A) have notifications if the jobs are not run according to schedule B) be able to set thresholds on the statistics which would trigger notifications C) I want to be able to trend and graph the statistics I am planning on sending this information to the monitoring application through an HTTP POST. Or, the monitoring application could pull it from a log file as well. However, we will have other processes with other "arbitrary" (from the monitoring system's perspective) statics that will want to monitor and trend, so flexibility is very important. The tool or tools should also be able to do general monitoring and trending of network interfaces, server load, etc. Once we get the backup monitoring in place, we will want to include those items as well. Thanks.

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• Apple Magic Trackpad 3-Finger Drop Lag

  - by activestylus

  After enabling three-finger dragging for my Trackpad, I notice that it drags well, but when I release there is about 1-2 seconds of lag before it actually drops. I understand this is supposed to be a feature so when you run out of space to drag, you have time to move your hand. But, for those of us powerusers, who move really fast, this is a BUG, not a feature. There should be some way to turn it off! For some perspective, I personally own a Fingerworks trackpad as well (the company Apple bought to make the Trackpad) and it does not suffer this problem. Drops are instantaneous no matter what program I am in. This is hugely frustrating for me, because I thought I was upgrading here and Apple's version does not perform as well as the Fingerworks model (which I purchased in 2004) I actually made a short video illustrating the problem, and why it is so frustrating for anyone who uses the pad as an artistic tool. Anyone here face this problem? If not, how would you recommend that I address Apple directly about this? PS - Already looked at this thread and the conclusion does not help me. I do not have one-finger drag enabled. PPS - I understand that for most people this is not an issue because they use the 'click' feature of the Trackpad. However, after years of using Fingerworks and not having to click ever, I find that it slows me down.

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• How can I stop IIS7 (integrated mode) from reporting a 404 before I get a chance to handle it?

  - by Gary McGill

  I have an ASP.NET MVC 2 application running on IIS7 in integrated mode. I'm trying to do my own 404 handling, but IIS7 seems to be intercepting the error and returning its own 404 message to the client before I get a chance to handle it. I'm not having much luck coming at the problem from a programming perspective over on Stack Overflow, so I wondered if maybe it's a configuration problem. Is there something I have to do to tell IIS to let me handle my own errors? (I'm trying to use Application_Error in my global.asax but it's not even getting there). There is a custom error page defined (at the machine level, I think) for 404 but when I tried removing that it didn't really help - it simply showed a bald one-liner message instead. My code still didn't get a look in. Is it perhaps something to do with the routing? Maybe the "mysite.com/nosuchpage" URL isn't being routed to me and that's why I don't get a chance to intercept it? Do I need to do something so that ALL requests get routed through my app?

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• iSCSI performance questions

  - by RyanLambert

  Hi everyone, apologies for the long-winded post in advance... Attempting to troubleshoot some iSCSI sluggishness on a brand new vSphere deployment (still in test). Layout is as such: 3 VSphere hosts, each with 2x 10GB NICs plugged into a pair of Nexus 5020s with a 10gig back-to-back between them. NICs are port-channeled in an active/active redundant fashion (using vPC-mac pinning for those of you familiar with N1KV) Both NICs carry service console, vmotion, iSCSI, and guest traffic. iSCSI is on a single subnet/single VLAN that is not routed through our IP network (strictly layer2) Had this been a 1gig deployment, we probably would have split the iSCSI traffic off onto separate NICs, but the price/port gets rather ridiculous when you start throwing 4+ NICs to a server in a 10gigabit infrastructure, and I'm not really convinced it's necessary. Open to dialogue/tech facts re: this, though. At this point even a single VM guest will boot slowly to iSCSI storage (EMC CX4 on the same Nexus 5020 10gig switches), and restores of VMs from iSCSI take about twice as long as we'd expect them to. Our server folks mentioned that if we split the iSCSI off onto its own NIC, performance seems significantly better. From a network perspective, I've run through the variables I can think of (port configuration errors, MTU problems, congestion etc.) and I'm coming up dry. There really is no other traffic on these hosts other than the very specific test being performed at the time. Important thing to note is that guest traffic works just fine... it seems storage is the only thing affected by whatever gremlin exists. Concluding that we're not 'overutilizing' the network infrastructure since we're doing hardly anything, I'm just looking for some helpful tips/ideas we can use to resolve this... preferably without hurling extra 10gig NICs that are going to sit around 10% utilization while we've got 70+% left on our others.

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• How do I `SUM` by multiple columns in Excel

  - by dwwilson66

  I have a comma delimited file that includes two columns date/time (which imports as Excel's mm/dd/yyyy hh:mm custom format) and status of 1 or 0. The status represents a piece of equipment either being on or off. I'm trying to generate a graph that will show, hours up vs. down by day. CONSIDER: 1/1/2012 00:00, 1 1/1/2012 03:00, 0 1/1/2012 14:00, 1 1/3/2012 00:00, 0 This tells me that the equipment was up for three hours, down for eleven hours, and then up for thirty-four hours (across two calendar days). However, I would like to generate a graph that shows how many hours PER DAY we were up or down. CONSIDER: 1/1 XXXXXXXXXXXXX----------- (up 13, down 11) 1/2 XXXXXXXXXXXXXXXXXXXXXXXX (up 24) To me, it seems that I need to generate a dataset summing HOURS by STATUS by CALENDAR DAY...but I can't seem to find a flavor of pivot table or nested SUM(IF(SUMIF(...))) combination to make it work. Most troubling is accounting for date changes...in my example above, since my uptime starting at 14:00 on 1/1/2012 crosses midnight, I need to know that 10 uptime hours get totalled with 1/1/2012 and 24 uptime hours get totalled with 1/2/2012. I may be able to do something with a calendar list to drive the date summation, but then I need a way to compare 01/01/2012 to 01/01/2012 03:00 as equal. There's got to be a way along the lines of if(INTEGER-PORTIONS-OF-SERIAL-DATES-ARE-EQUAL,TOTAL-HOURS-IF-VALUE-IS_1,0) but nothing's worked so far. Any suggestions? I've been battling this most of the day, and need a fresh perspective. Thanks

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• Transferring an SQL Processor License to a virtual hosted environment

  - by Andrew Shepherd

  My company is currently hosting a service in-house, and we want to move to an externally hosted environment. We would then be using a virtual server. I understand that this might be spread across multiple machines, but from my perspective as a customer, this layer is abstracted away - I shouldn't know or care about the hardware that the OS is hosted on. We have a licensed edition of SQL Server 2008. This is one Processor license. Will it be a violation of the licensing agreement to use this in a virtual environment. From the reference guide here it says When licensed Per Processor With Workgroup, Web, and Standard editions, for each server to which you have assigned the required number of per processor licenses, you may run, at any one time, any number of instances of the server software in physical and virtual operating system environments on the licensed server. However, the total number of physical and virtual processors used by those operating system environments cannot exceed the number of software licenses assigned to that server For enterprise edition there is an added option: if all physical processors in a machine have been licensed, then you may run unlimited instances of SQL server 2008 in one physical and an unlimited number of virtual operating environments on that same machine. I'm having trouble getting my head around this. Would I theoretically have to get a license for every processor in this virtual environment (which is effectively impossible because I have no way of knowing how many processors there actually are)? Or can I just say that it's hosted on one "virtual" server, so that's OK?

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• This web site needs a different Google Maps API key. A new key can be generated at http://code.googl

  - by MJI

  Apologies in advance if this is the wrong place to post. I tried searching for this issue and all that seemed to come up were questions posted from people who had this issue with their web pages. I couldn't find questions related to this issue from a laypersons perspective. I'm not a developer. I have no domain, nor wish to have one at the time. Rather I'm just a regular person who likes to upload photos to some photo related sites. My uploading process constantly gets interrupted by one of these annoying API errors. I get it at least two times, one when I click the page to upload, and also right after it has uploaded. It also pops up if I go to edit a photo or delete it. This interrupts my browsing experience until I click okay. I just want a fix for the annoying without having to register for a key. I tried before and it required a web domain. I rather not have to create a domain and go through such hoops just to fix this. Is there a solution for this problem that doesn't require registration? Another thing to note: I have used two computers. One has the message pop-up and the other doesn't. What is different about the two computers?

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