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• Start TLS and 389 Directory

  - by Kyle Flavin

  I'm trying to configure Start TLS on 389 Directory server, but I'm having all sorts of issues. I've been following this doc: https://access.redhat.com/knowledge/docs/en-US/Red_Hat_Directory_Server/9.0/html/Administration_Guide/managing-certs.html which specifies that I should create a certificate for both the directory server and admin server. I've imported the CA cert on both servers. I've tried to use the same server certificate for both. It will not allow me to do so. However, the admin and directory servers reside on the same host. If I generate a new certificate it will need to use the same hostname. I'm not sure if that's valid... Has anyone out there set this up before? Any direction would be helpful. I have multmaster replication set up. From an external client, I'm attempting to do an ldapsearch -ZZ -x -h "myhost" -b "dc=example,dc=com" -D "cn=Directory Manager" -W "", and I'm getting a protocol error.

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• Embedded Windows XP

  - by Kyle

  My company acquired a brake press for bending large structural steel plates. We received it second hand and it came with an embedded copy of windows XP. Now for the part that's driving me nuts: plug and play has been turned off, also accessibility options has been disabled. What does this mean for me? Keyboards will not work! Nothing that plugs into a USB port will work and it does not have a CD ROM drive. I have tried to turn on plug and play using the on screen keyboard but it is not there since accessibility options is turned off. I would just get an updated copy of the the embedded OS but they come from Sweden and are extremely expensive. I assume there has got to be a way to get a USB devices to work. We need to get a wifi adapter on it so I can use team viewer and remotely configure it for our needs. Things to keep in mind: There is no keyboard so everything has to be done with the mouse There is no PS2 port for a keyboard just a mouse. Odd. I am 5 states away from this location and have been working with a tech who is physically installing the machine. System 32 seems to be missing A LOT of files, the tech told me there is only 8 folders in there and no other files (I don't even understand how Windows is running like this). If anyone has ANY ideas I would appreciate it, I am unsure where to go from here.

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• PuTTY automatically supply password

  - by Kyle Cronin

  I have a situation where I need to have PuTTY (or another SSH client for Windows) automatically log into another machine via SSH. I realize that this isn't a good idea security-wise, but unfortunately I'm constrained by the limitations both on the client and the server. The best solution would be to have a shortcut or script on the desktop that, when double clicked, will connect to the server and automatically log in. Can I do this with PuTTY? I am willing to explore public key authentication, but I'm not sure where the PuTTY key resides or how to copy it to the server, as the app starts automatically upon login.

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• Copying Data from another Excel Workbook based on a matching id

  - by Kyle Begeman

  I have 2 workbooks I am working with. One workbook has an id and a category name. The other workbook shows a name and category section that has an id number (but not the actual description). Basically I want to copy the full category text to my current workbook from the old one based on the id number into a new column What kind of formula can I use to check the id number category pair and then copy it into the new workbook in a new column? Any help is great!

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• Single email Stuck in Backend Exchange Queue

  - by Kyle Brandt

  I have an outgoing message that has and is stuck in a queue on my backend mail server. The queue is: Internet Mail SMTP Connector (MY_FRONT_END_SERVER_NAME)-524350ff... It is in state retry with 183 failures. It is only one message and all other mail is flowing. The message is not particularly large. My limited understanding, a guess really, is that this message should get handed off to the front end mail server and sent to the remote hosts for which it is destined, so it should even matter if the remote host is up. However, I can telnet to the smtp provider of that host. How can I find out why it is stuck in this queue, and can I force it out somehow (unfreeze doesn't help me)?

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• Can I use my Belkin router as a repeater?

  - by Kyle R

  I've got a brand new, unopened Belkin N600 DB router (yay 50% off sale), and I can't seem to figure out if I can use it as a repeater. As far as I can tell, it doesn't support DD-WRT or Tomato, but I'm wondering if there may be some way to rig it up to repeat Wifi. Also, I really need to know before I open it, because, being a bit tight on money at the moment, I'll probably sell it if I can't use it as a repeater. Finally, two caveats: I can't use the other wireless router for anything other than broadcasting straight from the modem (parents are paranoid about anything technological). I can't run ethernet to the second router due to the layout of the house. Thanks so much for the help everyone--if I'm being vague, tell me! EDIT: Also, the manual here is pretty useless on this topic as far as I can tell.

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• Vim autocommand on BufDelete prevents opening help window

  - by Kyle Strand

  I have the autocommand described here in my .vimrc: http://superuser.com/a/669463/199803 EDIT: Copied into body of question for convenience: function CountListedBuffers() let cnt = 0 for nr in range(1,bufnr("$")) if buflisted(nr) && ! empty(bufname(nr)) let cnt += 1 endif endfor return cnt endfunction function QuitIfLastBuffer() if CountListedBuffers() == 1 :q endif endfunction autocmd BufDelete * :call QuitIfLastBuffer() Bizarrely, though, it seems that if I have exactly one listed buffer, and I try to use the :help command, the help window fails to open (or perhaps opens and is immediately closed). If I comment out that autocommand line in my .vimrc, this behavior no longer occurs. Why is this happening, and how can I fix it? Why would :h even trigger the BufDelete event? EDIT: setting verbosity to level 12, I can see that the BufDelete event is indeed occurring. Here's the portion of the output that looks relevant to me: Executing BufAdd Auto commands for "*" autocommand call <SID>BMAdd() calling function <SNR>6_BMAdd calling function <SNR>6_BMAdd..<SNR>6_BMFilename calling function <SNR>6_BMAdd..<SNR>6_BMFilename..<SNR>6_BMMunge calling function <SNR>6_BMAdd..<SNR>6_BMFilename..<SNR>6_BMMunge..<SNR>6_BMTruncName function <SNR>6_BMAdd..<SNR>6_BMFilename..<SNR>6_BMMunge..<SNR>6_BMTruncName returning '/usr/local/share/vim/vim74/doc' continuing in function <SNR>6_BMAdd..<SNR>6_BMFilename..<SNR>6_BMMunge function <SNR>6_BMAdd..<SNR>6_BMFilename..<SNR>6_BMMunge returning 'help\.txt\ (4)\^I/usr/local/share/vim/vim74/doc' continuing in function <SNR>6_BMAdd..<SNR>6_BMFilename calling function <SNR>6_BMAdd..<SNR>6_BMFilename..<SNR>6_BMHash function <SNR>6_BMAdd..<SNR>6_BMFilename..<SNR>6_BMHash returning #340582286 continuing in function <SNR>6_BMAdd..<SNR>6_BMFilename function <SNR>6_BMAdd..<SNR>6_BMFilename returning #0 continuing in function <SNR>6_BMAdd function <SNR>6_BMAdd returning #0 continuing in BufAdd Auto commands for "*" Executing BufDelete Auto commands for "*" autocommand :call QuitIfLastBuffer()

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• SSD RAID 5 or 10?

  - by Kyle

  I have a few extra SSD drives (I know its rare but this has actually happened). I figured since I have almost 500 GB in SSD's I might as well replace all of my standard HDD's with them. I currently have a RAID 5 setup and enjoy the the speed and redundancy with 10k RPM drives. Should I bother to put my SSD's in RAID 5? I have not heard of anyone doing this and have no idea how it is going to work out. The loss of space doesn't really bother me since I have a 2 TB NAS with all my media on it. Does anyone have experience with putting solid state drives in a RAID 5. If RAID 5 is a bad idea has anyone had experience with a RAID 10? is it possible to stripe the SSD's and provide redundancy with standard HDD's?

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• What is the fall off of subsecond throughput on Ethernet Network Interfaces

  - by Kyle Brandt

  On a network interface, speeds are given in term of data over time, in particular, they are bits per second. However, in the uber-fast world of computing -- a second is kind of a really long time. So for example, given a linear falloff. A 1 GBit per second interface would do 500MBit per half second, 250Mbit per quarter second etc. I imagine at certain units of time, this is no longer linear. Perhaps this is set by ethernet frequencies, system clock speeds, interrupt timers etc. I am sure this varies depending on the system -- but does anyone have more information or whitepapers on this? One of the main reasons I am curious is to understand output drops on interfaces. Even if the speed per second is much lower than the interface can handle -- perhaps there are spikes that cause drops for only small numbers of milliseconds. Perhaps various coalescing would hide this effect -- or perhaps increase it on the receiving interface? Do queues make a difference here? Example: So given if this is linear down to the MS we would have 1Mbit/MS, and if Wireshark isn't distorting what I see, should I see drops when I have a spike beyond 1Mbit?

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• Is there a feature in Nagios that allows Memory between checks?

  - by Kyle Brandt

  There are various instances where there are values I want to monitor with Nagios, and I don't care as much about the value itself, but rather how it compares to the previous value. For instance, I wrote one to check the fail counters in OpenVZ. In this case, I didn't care about the value that much, but rather I cared if the value increased. Another example might be switch ports, I would be most interested to get alerted about the change of state of a port (Although perhaps a trap would be better for this one). For my OpenVZ script, I used a temp file, but I am wondering if there is a better way? Maybe Nagios has some variables that plugins (check scripts) can access that are persistent across checks?

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• What is the go-to way of configuring PHP with Nginx

  - by Kyle

  I've heard many good things about Nginx lately, and I wanted to put it on my slicehost server. I am in a fix for ram, and would like to get Wordpress and wp-super-cache configured. I was just wondering the 'recommended way' of get PHP setup, because I see so many webpages saying their way is correct. No compiling if possible please, it makes updating a drag D=

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• Lighttpd Prepending Strings to Certain Files.

  - by Kyle

  I have a Mint install (Fantastic stats, if you were wondering) and I would like to move over to Lighttpd for my server needs. Unfortunatly, this means that php_auto_prepend is no longer easily available. I understand that PHP can do this in the php.ini file, but I have areas that can't have this value prepended so that's out of the question. Is there a lighttpd way to prepend my script for my mint install in some files, and have it disabled for others?

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• centos server shared files

  - by Kyle Hudson

  Hi, I am wanting to implement a multi-server specialised hosting environment. I currently have a cloud solution comprising of 3 centos boxes (2 lamp web servers, 1 mysql). What I am wanting to do is, implement a 5 server solution where they is 3 web servers, 1 mysql box and a fileshare. Basically I want the fileshare to host all the web files for the servers, the caching will remain on the individual servers and the sessions will be stored in mysql. So what I am asking is how do I map the servers to share the same "docroot"? Is it NFS? if so whats the best way about doing this? Thanks in advance.

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• Should the MAC Tables on a switch Stack be the same between sessions?

  - by Kyle Brandt

  According to Cisco's documentation: "The MAC address tables on all stack members are synchronized. At any given time, each stack member has the same copy of the address tables for each VLAN." However, when logged into the switch I see the following: ny-swstack01#show mac ad | inc Total Total Mac Addresses for this criterion: 222 ny-swstack01#ses 2 ny-swstack01-2#show mac ad | inc Total Total Mac Addresses for this criterion: 229 ny-swstack01-2#exit ny-swstack01#ses 3 ny-swstack01-3#show mac ad | inc Total Total Mac Addresses for this criterion: 229 ny-swstack01-3#exit ny-swstack01#ses 4 ny-swstack01-4#show mac ad | inc Total Total Mac Addresses for this criterion: 235 ny-swstack01-4#exit ny-swstack01#show mac ad | inc Total Total Mac Addresses for this criterion: 222 Going back and forth this isn't just because it is changing over time either, within certain sessions there are entries that I don't seen from the master session. We are currently waiting to hear back on CIsco from this, but has anyone run into this before? I stumbled upon this when looking into Unicast flooding, one of the hosts that is a destination MAC of flooding has a MAC entry that appears in session 3, but nowhere else. Also, I checked an all sessions show the same aging time.

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• IS there an FTP tool that can search for a phrase in all the files in a directory?

  - by Kyle Sevenoaks

  PRobably not, just need to clear up a question between me and a colleague. Wondering if there's an FTP tool that will search for a phrase within all the files in a directory. I doubt it. Thanks.

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• TCP Sessions and IP Changes

  - by Kyle Brandt

  What happens to a TCP session when the IP of a client changes? I did a simple test of having netcat listen on a port, and connecting to that port from a client machine. I then changed the IP of the client while that nc session was open and sent some data, no data was received by server after changing the IP. I know they are different layers, but does TCP use IPs for part of how it distinguishes sessions? Does my example not work because of how the application handles it, or is this not working because of something happening at TCP/IP/Ethernet layers? Does this depend on the OS implementation? ( I am most interested in Linux at the moment)

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• Basic Weight Questions with HAProxy

  - by Kyle Brandt

  Do weights assigned to servers only effect the balance within that particular backend? When implementing weights for the first time, if I give all the servers in a backend the same number, would that be the same as before when there we no weights? How do I calculate just how much traffic I am shiffting by adjust weights by certain amounts. For example: server web1 10.10.10.10 weight 100 server web2 10.10.10.11 weight 100 server web3 10.10.10.12 weight 90 server web4 10.10.10.13 weight 90

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• Everything You Ever Wanted to Know about Mod_Rewrite Rules but Were Afraid to Ask?

  - by Kyle Brandt

  How can I become an expert at writing mod_rewrite rules? What is the fundamental format and structure of mod_rewrite rules? What form/flavor of regular expressions do I need to have a solid grasp of? What are the most common mistakes/pitfalls when writing rewrite rules? What is a good method for testing and verifying mod_rewrite rules? Are there SEO or performance implications of mod_rewrite rules I should be aware of? Are there common situations where mod_rewrite might seem like the right tool for the job but isn't? What are some common examples?

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• Network location is not on the Domain

  - by Kyle Brandt

  I have a computer joined to the domain, but it doesn't view the network "location" as being part of the domain. I have tried removing and rejoining the domain and this doesn't help: Other computers in the same network don't have this problem. I have also tried several different icons, including both the train and the airplane which doesn't seem to make a difference. At least using nslookup, the server seems to have connectivity with the DCs in the same site. There also seem to be some errors that suggest a NULL domain: Computer: OR-WEB05.ds.stackexchange.com Description: NtpClient was unable to set a domain peer to use as a time source because of failure in establishing a trust relationship between this computer and the '' domain in order to securely synchronize time. NtpClient will try again in 3473457 minutes and double the reattempt interval thereafter. The error was: The trust relationship between this workstation and the primary domain failed. (0x800706FD)

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• Oracle 11g Express Edition

  - by Kyle Brandt

  I have been tasked with installing the latest oracle XE edition. The versions I have installed recently are all 11g, but when I look for the XE edition I only see 10g. Is 10g the latest XE edition or Oracle? If that is the case, does anyone know why is there not an 11g express edition?

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• Everything You Ever Wanted to Know about Mod_Rewrite Rules but Were Afraid to Ask?

  - by Kyle Brandt

  How can I become an expert at writing mod_rewrite rules? What is the fundamental format and structure of mod_rewrite rules? What form/flavor of regular expressions do I need to have a solid grasp of? What are the most common mistakes/pitfalls when writing rewrite rules? What is a good method for testing and verifying mod_rewrite rules? Are there SEO or performance implications of mod_rewrite rules I should be aware of? Are there common situations where mod_rewrite might seem like the right tool for the job but isn't? What are some common examples?

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• Multiple SSL certificates on one server

  - by Kyle O'Brien

  We're hosting two websites on our fairly tiny but dedicated production server. Both website require SSL authentication. So, we have virtualhosts set up for both of them. They both reference their own domain.key, domain.crt and domain.intermediate.crt files. Each CSR and certificate file for each site was setup using its own unique information and nothing is shared between them (other than the server itself) However, which ever site's symbolic link (set up in /etc/apache2/sites-enabled) is reference first, is the site who's certificate is referenced even if we're visiting the second site. So for example, assume our companies are Cadbury and Nestle. We set up both sites with their own certificates but we create Cadbury's symbolic link in apache's site-enabled folder first and then Nestle's. You can visit Nestle perfectly fine but if you check the certificate installation, it reference's Cadbury's certificate. We're hosting these websites on a dedicated Ubuntu 12.04.3 LTS server. Both certificates are provided by Thawte.com. I came across a few potential solutions with no degree of success. I'm hoping someone else has a decent solution? Thanks Edit: The only other solution that seems to have provided success to some people is using SNI with Apache. However, the setups here didn't seem to coincide with our setup at all.

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• Monitoring Active Directory (AD) Replication in Windows Server 2008 R2

  - by Kyle Brandt

  With Active Directory, what is a good way to monitor replication? I have multiple sites and multiple locations, so ideally both replication between sites and within sites would be monitored. I'm not really sure if each DC needs to be monitored, each NTDS connection, or each DC * Each NTDS connection. For the purposes of fitting into a standard alerting methodology, perfmon counters that would allow me to alert if replication was behind X minutes seems like it might be ideal.

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• How do I tunnel an HTTPS proxy through a virtual machine (VMWare)

  - by Kyle

  I have a personal setup at home using VMWare Workstation. I also have a set of Virtual Private Machines that run Squid, and therefore provide me HTTPS proxy tunnels. Using Proxifier, I can tunnel all traffic for given applications through these tunnels. However, I also have a few virtual machines for dev/staging/experimentation/etc. I generally just use NAT to provide Internet access to the machines, and if I need to use these proxies, I can just setup Proxifier (or a Linux equivalent) to pipe the traffic through them. No problem. But... I got to thinking: Wouldn't it be great if I could assign these proxy tunnels to a virtual machine, so that when I start up the VM, it has instant-on access through the tunnel and not my local connection? (EDIT: Of course, it would USE my local connection, but it would tunnel traffic through the proxy.) To be more clear: I want a solution that binds the proxy to a VM, so that when I start the VM, I don't have to use a proxy client to connect to the tunnel - I am already piping all traffic from that VM through that proxy. I did a bit of searching, and the closest thing I could find was this: How to route public static IP to a virtual machine on a vmware ESXi host? Which wasn't all that applicable. The proxies are protected by user/pass but do not filter by IP. Again, they are HTTPS proxies setup through Squid. Any ideas on how to make this happen? Thanks a ton.

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• Silverlight Cream for May 22, 2010 -- #867

  - by Dave Campbell

  In this Issue: Michael Washington, Xianzhong Zhu, Jim Lynn, Laurent Bugnion, and Kyle McClellan. A ton of Shoutouts this time: Cigdem Patlak (CrocusGirl) is interviewed about Silverlight 4 on Channel 9: Silverlight discussion with Cigdem Patlak Timmy Kokke has material up from a presentation he did, and check out the SilverAmp project he's got going: Code & Slides – SDE – What’s new in Silverlight 4 Graham Odds at ScottLogic has an interesting post up: Contextual cues in user interface design Einar Ingebrigtsen is discussing Balder licensing and is asking for input: Balder - Licensing SilverLaw has updated two of his stylings at the Expression Gallery to Silverlight 4: ChildWindow and Accordion Styling Silverlight 4 Keep this page bookmarked -- it's the only page you'll need for Silverlight and Expression links.. well, that and my blog :) .. from Adam Kinney: Silverlight and Expression Blend Jeremy Boyd and John-Daniel Trask have some sweet-looking controls in their new release: Introducing Silverlight Elements 1.1 Matthias Shapiro entered the Design for America competition with his Recovery Review: A Silverlight Sunlight Foundation Visualization Project be sure to check out his blog post about it -- there's a link at the bottom. Koen Zwikstra announed a new release: Document Toolkit 2 Beta 1 available ... built for SL4 and lots of features -- check out the blog post. From SilverlightCream.com: Simple Example To Secure WCF Data Service OData Methods Michael Washington has a follow-on tutorial up on WCF Data Security with OData -- essentially this is the 'securing the data' part ... the Silverlight part was in the previous post... all code is available. Developing Freecell Game Using Silverlight 3 Part 1 Xianzhong Zhu has the first of a two-part tutorial up on building Freecell in Silverlight 3 ... yeah... SL3 -- oh, can you say WP7?? :) Silverlight Top Tip: Startup page for Navigation Apps Jim Lynn has detailed how to go straight to a specific page you're working on in a complex Silverlight app say for debug purposes rather than page/page/page ... I was just thinking yesterday about putting a shortcut on my taskbar for something similar in .NET :) Handling DataGrid.SelectedItems in an MVVM-friendly manner Laurent Bugnion responded with code to a question about getting a DataGrid's SelectedItems into the ViewModel in MVVMLight. Demo code available too. RIA Services and Windows Live ID Kyle McClellan has a post up discussing using LiveID and RIA Services and Silverlight. Lots of external links sprinkled around. Stay in the 'Light! Twitter SilverlightNews | Twitter WynApse | WynApse.com | Tagged Posts | SilverlightCream Join me @ SilverlightCream | Phoenix Silverlight User Group Technorati Tags: Silverlight    Silverlight 3    Silverlight 4    Windows Phone MIX10

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