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• RAID 10 or RAID 5 for multiple VMs - what is the best choice?

  - by Lars Fastrup

  I have just ordered a new rig for my business. We do a lot of software development for Microsoft SharePoint and need the rig to run several virtual machines for development and test purposes. We will be using the free VMware ESXi for virtualization. For a start, we plan to build and start the following VMs - all with Windows Server 2008 R2 x64: Active Directory server MS SQL Server 2008 R2 Automated Build Server SharePoint 2010 Server for hosting our public Web site and our internal Intranet for a few people. The load on this server is going to be quite insignificant. 2xSharePoint 2007 development server 2xSharePoint 2010 development server Beyond that we will need to build several SharePoint farms for testing purposes. These VMs will only be started when needed. The specs of the new rig is: Dell R610 rack server 2xIntel XEON E5620 48GB RAM 6x146GB SAS drives Dell H700 RAID controller We believe the new server is going to make our VMs perform a lot better than our existing setup (2xIntel XEON, 16GB RAM, 2x500 GB SATA in RAID 1). But we are not sure about the RAID level for the new rig. Should we go for having the the 6x146GB SAS drives in a RAID 10 configuration or a RAID 5 configuration? RAID 10 seems to offer better write performance and lower risk of a RAID failure. But it comes at a cost of less drive space. Do we need RAID 10 or would RAID 5 also be a good choice for us?

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• PC -> TV HDMI suddenly doesn't work, any other option does

  - by XSlicer

  So my parents wanted to connect their PC to their TV, so they bought a 10m (35 ft) cable. It all worked perfectly. Then my mom tripped over the cable, breaking it. She somehow got a free replacement, but at the same time some more expensive one from an uncle. Now the problem is that this suddenly doesn't work anymore (TV saying "Format not supported"). I've tried several other things to pinpoint the actual problem, but none brought me something conslusive: PC (hdmi) to TV doesn't work (both cables) PC (hdmi) to TV doesn't work (short cable) Laptop (hdmi) to TV work (same cables) BluRay (hdmi) to TV works (same cables) PC (hdmi) to monitor works (same cables) PC (DVI w/ adapter HDMI) to TV works (same cables) I've tried different ports, tried Linux, reinstalling drivers (the graphics card is internal using an i5 sandy bridge. Normally it's running Windows 7 Home Prem, the TV being a Philips 37PFL7605H). So basically, everything works, except that thing what we want. The only things I am thinking of is that the sound is interfering or that the HDMI-output is somehow broken. Or is it anything else? I'm kind of lost.

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• Why does my microwave kill the Wi-Fi?

  - by Ohlin

  Every time I start the microwave in the kitchen, our home Wi-Fi stops working and all devices lose connection with our router! The kitchen and the Wi-Fi router are in opposite ends of the apartment but devices are being used a little here and there. We've been annoyed by the instability of the Wi-Fi for some time and it wasn't until recently we realized it was correlated to microwave usage. After some testing with having the microwave on and off we could narrow down the problem to only occurring when the router is in b/g/n mode and uses a set channel. If I change to b/g mode or set channel to auto then there is no problem any more...but still! The router is a Zyxel P-661HNU ("802.11n Wireless ADSL2+ 4-port Security Gateway" with latest firmware) and the microwave is made by Neff with an effect of 1000W (if this information might be useful to anyone). There is an "internet connection" light on the router and it doesn't go out when the interruption occurs so I think this is only an internal Wi-Fi issue. Now to my questions: What parts of the Wi-Fi can possibly be affected by the microwave usage? Frequency? Disturbances in the electrical system? How can setting Auto on channels make a difference? I thought the different channels were just some kind of separation system within the same frequency spectrum? Could this be a sign that the microwave is malfunctioning and slowly roasting us all at home? Is there any need to be worried? Since we were able to find router settings that cooperate well with our microwave's demand for attention, this question is mainly out of curiosity. But as most people out there...I just can't help the fact that I need to know how it's possible :-)

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• Internet connection problem,ping ok , but outlook and browsers dont work

  - by Ashian

  Hi, From some days ago I have a big problem on my laptop( run windows xp sp3) When I connect to internet I can ping web sites but when try to browse them some times it work correctly and some times the connection to server intrupted and I have to refresh the page several times. in this case browser show a connection problem immediatly after I click on address bar or a link on page( wihtout any try to connect to server) I use FireFox and opera and both of them have this problem. try another ISP and still I have this problem. I didnt use any proxy server and check the proxy setting. In this case Outlook also can't connect to mail server. this problem anfter some time or after restart windows have been fixed for a while. I check for virus and can't find anything. Is there any idea how can I fix it? UPDATE: Thanks for your responses. I test them , also I use Open DNS setting and that dosent help me. last night I see that my local web application ( such as Adsl modem config web site , and sites that I set up on windows xo IIS ) aslo can't open and Internal Communication error apears ( Opera Message) that didnt relate to DNS settings or Internet connection.

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• IIS7 can't read web.config on shared Mac filesystem

  - by RobG

  I'm running a VirtualBox virtualized Windows 2008 Server on my Mac, just finished setting it up today. On it, I have SQL Server 2008, IIS and ColdFusion 9. I want to serve websites from my Mac filesystem (for development purposes). So I created a new website in IIS and pointed it at the appropriate path using a UNC path: \vboxsvr\rob\Sites\testsite, which contains the ColdFusion code and a web.config file. When I attempt to modify the file at all, or view the site in a web browser, I get an error: HTTP 500.19 - Internal Server Error The requested page cannot be accessed because the related configuration data for the page is invalid. I did some Googling, and found several similar problems, but nothing exactly like I have. The closest one seemed to indicate permissions. So I recreated the site and set it up to allow the Administrator (in Windows) to access the stuff. That didn't help. I can read/modify the files just fine from within Windows, but IIS itself can't seem to do it. What do I need to do to fix this? Thanks!

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• Exchange 2010 certificate errors

  - by Frederik Nielsen

  I have a problem with my newly setup Exchange environment for our hosted customers. First off, when configuring the outlook client, it gives a certificate warning although the certificate has been bought and setup. I am using a setup like this: autodiscover.CUSTOMERDOMAIN.TLD CNAME autodiscover.exchange.COMPANYDOMAIN.TLD (Companydomain is our company that hosts the exchange servers, customerdomain being the customers domain) Shouldn't that work? I know that Microsoft does something like that for Office365, but I really don't think they buy a certificate for every customer.. So I guess some redirection should be setup somehow - any guidance? Next thing: When we accept that error, and move on to actually starting Outlook, it states that the certificate is not valid for the RPC proxy server exchange.COMPANYDOMAIN.TLD - this domain is not right, as that domain is not included in the certificate. I would instead like this domain to be mail.exchange.COMPANYDOMAIN.TLD I tried to run this script setting both internal and external URL's to be the same, with no luck. Any guidance on this one? I am running Exchange 2010 SP2, with CAS, HT and MBX split up on 3 different servers.

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• Can not open ports in iptables on CentOS 5??

  - by abszero

  I am trying to open up ports in CentOS's firewall and am having a terrible go at it. I have followed the "HowTo" here: http://wiki.centos.org/HowTos/Network/IPTables as well as a few other places on the Net but I still can't get the bloody thing to work. Basically I wanted to get two things working: VNC and Apache over the internal network. The problem is that the firewall is blocking all attempts to connect to these services. Now if I issue service iptables stop and then try to access the server via VNC or hit the webserver everything works as expected. However the moment I turn iptables back on all of my access is blocked. Below is a truncated version of my iptables file as it appears in vi -A RH-Firewall-1-INPUT -p tcp -m state --state NEW -m tcp --dport 5801 -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m state --state NEW -m tcp --dport 5901 -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m state --state NEW -m tcp --dport 6001 -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m state --state NEW -m tcp --dport 5900 -j ACCEPT -A RH-Firewall-1-INPUT -p tcp -m state --state NEW -m tcp --dport 80 -j ACCEPT Really I would just be happy if I could get port 80 opened up for Apache since I can do most stuff via putty but if I could figure out VNC as well that would be cool. As far as VNC goes there is just a single/user desktop that I am trying to connect to via: [ipaddress]:1 Any help would be greatly appreciated!

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• How to convert JPEG JFIF files to JPEG Exif format?

  - by tigrou

  I recently put the SD card of my camera in a Windows 7 PC and start browsing pictures on it. I noticed some were not aligned correctly and use rotate feature included in Windows Photo Viewer in order to view them as I wanted. What I didn't know is that when rotate feature is used, it also overwrite the picture when pressing next or previous button resulting in a possible loss of quality (which is in my opinion a bad idea, app should at least warn user of what will happened when using such a feature). After that, I re-inserted the SD card back in my camera and bad surprise happened : the rotated picture could not be previewed anymore. Instead, i got a black screen saying "Incompatible JPEG format". Other files (untouched) are still working ok. To try to understand what happened I opened a JPEG file from camera and one generated on windows 7 in a hex editor. Here is the difference : The camera JPEG files have a Exif tag in them (with 0xE1 in header). Other JPEG files (Windows 7) have first a JFIF tag in it, followed by a Exif tag (with 0xE0 in header). So if i understand it well, both are JPEG files, but using a different internal format. Here is my question : is it possible (using some tool) to convert JFIF files to Exif format ? I understand that original camera files have been reencoded and thus lose some quality (getting originals back is impossible). What i want know if convert them from JFIF back to Exif (without a second loss of quality if possible...)

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• Mass-migrating from POP3 to Exchange 2010, how do I copy mailboxes?

  - by Erik P. Skaalerud

  I'm in the process of planning our migration from an internal hosted POP3-server (dovecot) to Exchange 2010. We're using Outlook 2003 for the moment, but will soon upgrade to Outlook 2010. The big problem is that we have about 50 computers here in our HQ, plus ~30 clients in branch offices (wich will get their Exchange migration later sometime). I'm the only IT personel, and having to go around and manually set up Outlook and copy over their PST contents is not a option I'm looking for. Some users have set outlook to keep messages for X number of days on the POP3 server, others have not. Using a POP3 connector to transfer over the mails is not a viable option. Here is what I've done so far: Created a transform for the Office 2003 administrative installation point Created a .PRF file to modify any existing e-mail account to switch over to Exchange (including the RPC-encrypt hotfix described in MSKB 2006508) Tested both transform and PRF, both works Created a test-OU and GPO containing the Office 2003 installation with transform applied, also works My big question is: How can I force Outlook to import any existing .PST into the new Exchange mailbox when the user starts up Outlook for the first time after the MST/PRF have been applied? Is this possible?

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• Windows shutting down, CPU maxing out in Windows-7 32-bit? [closed]

  - by Vivek Sharma

  I have no idea, what is happening to my laptop. For last 5-6 times it has automatically shutdown while running, without doing anything serious. And I even do get the message during boot which says - Start windows normal - Start in safe mode It just boots up normal. Few days ago, my screen blinked and it the PC shutdown immediately. After that I was not able to get it started. I got it repaired, the guy said he has replaced the display chip (nVidia-nvs-140), but i seriously doubt that. Now it started working, but would shutdown every 20 mins or so. I have a dual boot, ubuntu-11.10 works just fine. Virus scan on windows shows nothing. I am pasting my perfmon output. My CPU for reason is maxing out to 100% continously, for windows internal processes. Please have a look at the attached file. Strangly now for last 2 hours it is working fine, but i am just writing emails and reading excels. ThinkPad T61 | t9300 | 3gb | nVidia 140 nvs-quadro (latest driver 296.10) What do you suggest?

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• How to configure network on Windows Server 2008

  - by Gokhan Ozturk

  I have a IBM x3400 Server Machine with Windows Server 2008 R2 installed on it. But, since I am not expert on networking I have some problems. These roles installed on my server: Active Directory DNS File Sharing Hyper-V ISS VPN There is two network card on them. I configured them like this: Local Connection 1: 192.168.30.3 255.255.255.0 192.168.30.2 127.0.0.1 Local Connection 2: 192.168.30.101 255.255.255.0 192.168.30.6 127.0.0.1 My problem is, when I use this Ip gateways, It is sharing internet to all computers. This is not I want. I want to use Local Connection 1 for internal network. I am giving all computers gateway and DNS IP as 192.168.30.3 The Local Connection 2 is for Hyper-V and VPN connections. 192.168.30.2 and 192.168.30.6 are my modem's gateways. I am using 192.168.30.6 external IP for VPN connections. There is two 24 port switches. There is a connection between them and this two ethernet card connected directly to them. And modems are connected to switches as well (Morems are not near the server. They are somewhere in the building). I disabled network Bridge and removed all ethernet cards from it. With this configuration, all computers can ping my server's IP (192.168.30.3) but on server I cannot ping any clients (Request timeout). What is the best way to configure my network? Thank you. Redgards

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• .htaccess, mod_rewrite Issue

  - by Shoaibi

  What i want: Force www [works] Restrict access to .inc.php [works] Force redirection of abc.php to /abc/ Removal of extension from url Add a trailing slash if needed old .htaccess : Options +FollowSymLinks <IfModule mod_rewrite.c> RewriteEngine On RewriteBase / ### Force www RewriteCond %{HTTP_HOST} ^example\.net$ RewriteRule ^(.*)$ http://www\.example\.net/$1 [L,R=301] ### Restrict access RewriteCond %{REQUEST_URI} ^/(.*)\.inc\.php$ [NC] RewriteRule .* - [F,L] #### Remove extension: RewriteRule ^(.*)/$ /$1.php [L,R=301] ######### Trailing slash: RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_URI} !(.*)/$ RewriteRule ^(.*)$ http://www.example.net/$1/ [R=301,L] </IfModule> New .htaccess: Options +FollowSymLinks <IfModule mod_rewrite.c> RewriteEngine On RewriteBase / ### Force www RewriteCond %{HTTP_HOST} ^example\.net$ RewriteRule ^(.*)$ http://www\.example\.net/$1 [L,R=301] ### Restrict access RewriteCond %{REQUEST_URI} ^/(.*)\.inc\.php$ [NC] RewriteRule .* - [F,L] #### Remove extension: RewriteCond %{REQUEST_FILENAME} \.php$ RewriteCond %{REQUEST_FILENAME} -f RewriteRule (.*)\.php$ /$1/ [L,R=301] #### Map pseudo-directory to PHP file RewriteCond %{REQUEST_FILENAME}\.php -f RewriteRule (.*) /$1.php [L] ######### Trailing slash: RewriteCond %{REQUEST_FILENAME} -d RewriteCond %{REQUEST_FILENAME} !/$ RewriteRule (.*) $1/ [L,R=301] </IfModule> errorlog: Request exceeded the limit of 10 internal redirects due to probable configuration error. Use 'LimitInternalRecursion' to increase the limit if necessary. Use 'LogLevel debug' to get a backtrace., referer: http://www.example.net/ Rewrite.log: http://pastebin.com/x5PKeJHB

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• How long will a "safely stored" Solid-State-Drive (SSD) keep its data? (e.g. bank safety-deposit box)

  - by user31575

  Here's my usecase: once-and-only-once copy off photos/videos to an internal SATA Solid State Drive (SSD) put this drive in a well-ventilated, air-conditioned bank "safety deposit box" for safe keeping The question: How long can I safely store a solid-state-drive in such an environment? i.e. 0% bitrot, 100% success when "plugged in" Are some SSD drives more reliable than other for this usecase? (e.g. smaller size vs larger size, SLC vs MLC, different brands, etc) More fodder: I have read that solid state memory cards (e..g compactflash, or sd cards) have much longer durability than other media (DVD's, CD's, hard drives) for this usecase (guaranteed against bitrot/other dysfunction on the order of ~ a decades vs a year ). I don't know if this applies to "SSD hard drives". Copying to one 500Gb ssd vs 8 64gb flash drives is easier SSD SATA hard drives have no moving parts, but they have more "visible electronics" than a compact flash card. I don't know if this "visible electronics" can fail, i.e. in contr I know many will point to carbonite, other cloud backup stuff, but I like the simplicity of having physical copies and wanted to understand the risks/implications thanks,

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• To what extent is size a factor in SSD performance?

  - by artif

  To what extent is the size of an SSD a factor in its performance? In my mind, correct me if I'm wrong, a bigger SSD should be, everything else being equal, faster than a smaller one. A bigger SSD would have more erase blocks and thus more leeway for the FTL (flash translation layer) to do garbage collection optimization. Also there would be more time before TRIM became necessary. I see on Wikipedia that it remarks that "The performance of the SSD can scale with the number of parallel NAND flash chips used in the device" so it seems throughput also increases significantly. Also many SSDs contain internal caches of some sort and presumably those caches are larger for correspondingly large SSDs. But supposing this effect exists, I would like a quantitative analysis. Does throughput increase linearly? How much is garbage collection impacted, if at all? Does latency stay the same? And so on. Would the performance of a 8 GB SSD be significantly different from, for example, an 80 GB SSD assuming both used high quality chips, controllers, etc? Are there any resources (webpages, research papers, presentations, books, etc) that discuss correlations between SSD performance (4 KB random write speed, latency, maximum sequential throughput, etc) and size? I realize this does not really sound like a programming question but it is relevant for what I'm working on (using flash for caching hard drive data) which does involve programming. If there is a better place to ask this question, eg a more hardware oriented site, what would that be? Something like the equivalent of stack overflow (or perhaps a forum) for in-depth questions on hardware interfaces, internals, etc would be appreciated.

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• DNS lookup fails when with all the MAC workstations

  - by user39564

  Hi, I am having this insane problem. We are mac-heavy users. Around 10 workstations, one Xserve server, two windows workstation and one Linux (me). Last year I added an A record to our domain's DNS. However we had to change that a few months ago to a new IP. But all the Mac workstations fail to resolve the proper DNS and they still resolve to the old IP, even after 2 months. On both the windows workstation and my linux box a simple nslookup resolves to proper IP. However, on ALL the mac workstation, dig and nslookup report the old IP address. From my linux workstation: jp@lo:~$ nslookup - 208.67.222.222 client.xyz.com Server: 208.67.222.222 Address: 208.67.222.222#53 Non-authoritative answer: Name: client.xyz.com Address: 68.71.40.xx But when I am trying the exact same command from any Mac workstation, I get the old IP: $ nslookup - 208.67.222.222 client.xyz.com Server: 208.67.222.222 Address: 208.67.222.222#53 Non-authoritative answer: Name: client.xyz.com Address: 98.143.155.xx The strange thing is that this only happens in our internal network. No problem from home nor from another server. I did try to flush the DNS, don't worry. It did not help. I am starting to wonder if my router (OpenWRT) or Mac OS X Server is not in some way spoofing the DNS request and thus acting as a cache. Any suggestions/comments would be grateful. Thank you, JP

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• Windows Not Honoring DHCP Scope

  - by jerhinesmith

  Please bear with me as I'm not a networking person by trade. Our current configuration at work includes two Windows Servers serving as DHCP/Active Directory servers (if that makes sense) -- one replicating from the other. On both machines, the DNS resolution is set up as: Main Windows Box (10...* address) Public IP Address (for Verizon) Public IP Address (secondary Verizon) Secondary Windows Box (10...* address) Assuming our domain is foo.com, we maintain the foo.com website on a hosted VPS with it's own IP address. The problem is that even though bar.foo.com is an internal server and is defined in DNS on the Primary Windows machine, when I ping bar or even bar.foo.com it resolves to the hosted IP address instead of the 10.* address. I tried taking both of the Public IP addresses out of the DHCP scope, and that seemed to work, but it completely slowed down access to any external sites, so that wasn't acceptable. I also tried adding the two Windows machine as the DNS servers on my desktop. That too worked, but I'd rather not have everything enter their DNS servers, as the above setup should theoretically be working. Is there anything I could check to see why pinging bar.foo.com isn't resolving to the DNS entry on the Windows machines? Here's a summary of the ping results, if they help: Pinging from servers with static IP bar.foo.com resolves with correct IP address Pinging from linux machines not joined to the domain bar.foo.com resolves with correct IP address Pinging from user's desktop machines, joined to the domain, but dynamic IP bar.foo.com resolves with incorrect IP address This is driving me crazy!

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• "Error 53" with local LAN machines after VPN session on server

  - by tim11g

  I have a Windows 2000 server with a Windows 7 client that occasionally gets "error 53" when accessing the server by name (net view \\server). It still works by IP address (net view \\192.168.0.1). The server's primary IP address (as shown in "routing and remote access" as "Gigabit Ethernet" is 192.168.0.1. There is also a secondary IP address shown as "Internal" which is 192.168.0.50 The server also supports VPN. When a VPN user connects, it gets an address in the range of 192.168.0.51 to .59. Normally (when there is no error), when the local LAN client runs "ping server", it resolves to 192.168.0.1. When the Error 53 problem happens, "ping server" resolves to 192.168.0.50. This problem seems to be related to when a user connects or has recently connected to the server VPN. Is there some connection between the VPN services on the server and the DNS services on the server that could cause a local LAN client to become confused about which IP address to use for the server? Or is there a misconfiguration in the VPN or DNS?

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• Apache displays error page half way through PHP page execution

  - by Shep

  I've just installed Zend Server Community Edition on a Windows Server 2003 box, however there's a bit of a problem with the display of a lot of our PHP pages. The code has previously running under the same version of PHP (5.3) on IIS without any issues. By the looks of things, Apache (installed as part of Zend Server) is erroring out during the rendering of the page when it comes across something it doesn't like in the PHP. Going through the code, I've been able to get past some of the problems by removing the error suppression operator (@) from function calls and by changing the format of some includes. However, I can't do this for the whole site! Weirdly, the error code is reported as "200 OK". The code snippet below shows how the Apache error HTML interrupts the regular HTML of the page. <p>Ma quande lingues coalesce, li grammatica del resultant lingue es plu simplic e regulari quam ti del coalescent lingues.</<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN"> <html><head> <title>200 OK</title> </head><body> <h1>OK</h1> <p>The server encountered an internal error or misconfiguration and was unable to complete your request.</p> <p>Please contact the server administrator, [email protected] and inform them of the time the error occurred, and anything you might have done that may have caused the error.</p> <p>More information about this error may be available in the server error log The Apache error log doesn't offer any explanation for this, and I've exhausted my Googling skills, so any help would be greatly appreciated. Thanks.

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• Internet Explorer ignoring PHP setcookie() from CentOS server

  - by Hussein Sabbagh

  In the past we used a windows XAMPP server for an internal website. It worked fine but had some intermittent issues and we decided to move to a LAMP server on CentOS. We made the switch today but it turns out Internet Explorer ignores every attempt I make at saving a cookie. There is no underscore in the URL being used... the URL is actually the same as the one the XAMPP server used, where I was able to save cookies without any problems. It really doesn't make any sense to me, all of the code is the same. The only thing to change is the version of PHP and the server OS. The website works on all other browsers except IE. I can't even make a simple setcookie call. On a blank test page I use setcookie("test", "test", time()+36000, "/"); sleep(5); print_r($_COOKIE); and there is nothing there. Our users can't log into the website because of this and I have no idea what the issue is. If anyone can provide any clues or resolutions I would greatly appreciate it. Obviously the easy answer is to not use IE, but that is not an option in this case.

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• On clients use generic driver for printer shared by CUPS

  - by Daniel

  I know this worked really easy with a recent CUPS version some years ago. Unfortunately I fail to do the following with latest CUPS nowadays. How to share a printer without using printer specific drivers on the clients with CUPS? The printer is a Samsung ML-2010. The important fact is that it needs a quite specific library for printing called splix. That is installed on the server and prints well. What makes trouble is using that printer over the network. I found out how to use Avahi under Linux to make use of DNSSD to advertise and discover printers. But as far as I understand the new CUPS offers the internal driver interface on the network. This has 2 major issues: anybody can fiddle with the driver and I don't trust any uncommon printer library to be "network secure" anyone who wants to use my printer including guests needs to install the specific drivers first I remember the old days when I could enable "Share this printer" on the CUPS server and all clients would magically detect the printer and just send their job data to the server and have it do the driver stuff. After everything a read I guess this is related to the changes Apple introduced with CUPS including dropping of the integrated network discovery protocol. If it helps: Server: Ubuntu LTS 12.04 Server with CUPS 1.5.3 Client: Arch Linux with current CUPS 1.6.1 On another box with Ubuntu the printer was setup automatically at least but the mechanism used the Splix library for that.

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• Apache local verses external (domain)

  - by Jessy Houle

  I have an Apache server running on Ubuntu server 10, using Passenger for Ruby on Rails. I have configured my site under the sites-enabled directory of Apache and can hit the server with an internal IP address (192.168.X.X) and the site comes back as expected. However, whenever I try to hit the site externally, either through the domain name or the IP address tied to the domain name, the site will not come back. I have a router in the middle with a static IP address, with Port Forwarding turned on (forwarding 80/443) to the server and I'm quite confident the issue isn't there. In fact, I even DMZed to the Ubuntu Server just to make sure. Also, all router firewall options have been turned off. So here is the question... Is there something else I have to do with Ubuntu server to allow externally requested port 80 traffic? Otherwise, is there some settings that need to be set in Apache to allow domain or external IP address port 80 traffic through? I'm pretty new to Apache, so, please take it a bit easy on me :-) Thank you for your responses. -Jessy Houle

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• Vmware Workstation, Win7 host, Ubuntu guests with Nat + Host-only networks but they cannot connect to the Internet

  - by Ikon

  I have a Win7 host machine with Vmware Workstation. In the workstation I have 3 Ubuntu installed. All 3 Ubuntu guests have a Nat network - to access the internet without asking the router for a local address - and a Host-only network - to connect all Ubuntu quests and the host in a private network for internal communication, without touching the router. When I try to make any of the Ubuntu quests to get data from the internet - assuming that they would figure out that the Nat-ed interface can access the requested data - they fail and report that there is no route to my query. If I disconnect the 2nd interface on the Ubuntu guests with the Host-only network and restart networking, they start to know the route to the internet. Odd, during the installation of the guests they asked which of the 2 given interfaces - with Nat and Host-only config - should be used to get updates during installation and they oddly managed to get the updates. Not so after the installation has finished and rebooted. I have checked the Virtual Network Editor that the Nat interface should use my real network card to access the net, so there should be no problem. I wish not to use the router's dhcp service to give the Ubuntu quests an address, and also I don't want the guests to be accessable from the local network directly, but only by the host - that's the Host-only network is for. Any suggestions? Edit: 192.168.189.0 is the Nat interface and 192.168.7.0 is the Host-only. $ route -n Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface 192.168.7.0 0.0.0.0 255.255.255.0 U 0 0 0 eth1 192.168.189.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 0.0.0.0 192.168.189.2 0.0.0.0 UG 100 0 0 eth0

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• VBA Solution to VLOOKUP with Hyperlinks

  - by Emily2

  I am looking for some help with a VBA solution for preserving hyperlinks when using VLOOKUP on Excel (2010). I have a load of data on Sheet 1 for internal use only, and a cut-down version of this on Sheet 2. Instead of recreating Sheet 2 everytime, I am looking to have a working version which updates everytime Sheet1 is updated. Thus, I have used VLOOKUP on Sheet 2 so that only the desired info is returned on sheet 2. However, the problem was that sheet 1 contained in many cells Hyperlinks to external websites, and this would not pull through to Sheet2 using VLOOKUP. With some help, however, using the following VBA solution the hyperlinks now pull through: Function GetHyperLink(r As Range) As String If r.Hyperlinks.Count Then GetHyperLink = r.Hyperlinks(1).Address End If End Function And I am using the following formula in the relevant cell(s) in Sheet2: =HYPERLINK(GetHyperLink(INDEX('Sheet 1'!$B$1:$B$10001,MATCH(A4,'Sheet 1'!$A$1:$A$10001,0))),(VLOOKUP(A4,'Sheet 1'!$A$1:$B$10001,2,FALSE))) However, the problem is with formatting: every cell on Sheet2 is formatted blue and underlined, even although some of them do not contain a hyperlink! Is someone able to help with a VBA solution/formula to fix this last piece of the puzzle? Many thanks, in anticipation.

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• ssh works fine when using public interface, but slow when using private interface

  - by Kevin M

  My Linux(UbuntuEEE) to Linux(CentOS) ssh takes a long time to log in(~15 seconds) when using the private interface, but not when using the public one. I have a Linux box acting as my router. As such, it has multiple interfaces(75.xxx.xxx.xxx, 192.168.1.1). I can ssh in from the internal interface(192.168.1.65 to .1), but it will take a while. I can ssh into the public address, and it goes quickly(~1 second). I have another box that I can ssh into the inside interface from and it goes quickly. iptables is set to accept packets coming into the interface immediately. sshd's UseDNS is normally on; I get the same problem if I turn it off and restart sshd. I normally use public-key authentication; I have done a mv ~/.ssh/ ~/ssh/ and it will ask me for a password after going slowly. After logging in(using either interface), speed is quick. ssh client version(via ssh -v):OpenSSH_4.7p1 Debian-8ubuntu1.2, OpenSSL 0.9.8g 19 Oct 2007 ssh server version(via rpm -qv openssh_server):openssh-server-4.3p2-29.el5

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• RHEL 5.3 Kickstart - How specify location of individual package in Workstation folder?

  - by Ed

  I keep getting "package does not exist" errors during the install. I made a kickstart ISO to create an unattended install of a RHEL 5.3 build machine for C++ software releases. It pulls the kickstart config file from our internal web server. This is handy; it makes it easy to test and modify without having to make a new ISO. And I plan to check it in to version control if I can get it working. Anyway, the rpm packages are located in two folders on the disk; Client and Workstation. The packages install fine for the ones that are physically located under the Client folder. It cannot find those under the Workstation folder such as as doxygen and subversion complaining that packages do not exist. Is there a way to specify the individual package location? # ----------------------------------------------------------------------------- # P A C K A G E S # ----------------------------------------------------------------------------- %packages @gnome-desktop @core @base @base-x @printing @development-tools emacs kexec-tools fipscheck xorg-x11-server-Xnest xorg-x11-server-Xvfb #Packages Located in Workstation Folder *** Install can not find any of these ?? bison doxygen gcc-c++ subversion zlib-devel freetype-devel libxml2-devel Thanks in advance, -Ed

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