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• Install MatroskaProp on Windows 7 x64

  - by Neophytos

  To see more information in Windows Explorer property pages and menus about Matroska Video (.mkv) files, similar to what one can see when selecting native Windows media (.avi, .asf, .wmv or even just plain old mpg) files, Matroska links (from http://www.matroska.org/downloads/windows.html) to a download of the MatroskaProp shell extension (http://www.jory.info/serendipity/archives/14-MatroskaProp-2.8-Released.html). It used to work for me under Windows XP 32-bit. Now I have Windows 7 x64, and downloaded, installed and ran it. Configuration and settings page is fine. But it does not seem to actually register any shell extension. Nothing is added to Explorer windows, menus or property pages when selecting .mkv or .mks files). I tried calling the register hook manually using regsvr32.dll, that again invoked the configuration window and let me set all options, and when confirming even said the registration succeeded, but seems to have had no effect. In the registry I cannot find any traces of the shell extension being installed. Can this extension be made to work under Windows 7 or x64 systems? Are there known problems with installing this or other old shell extensions on x64, or on Windows 7?

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• Re: How can Django/WSGI and PHP share / on Apache?

  - by Bogdan

  in response to: How can Django/WSGI and PHP share / on Apache? Hello, could you please post the complete config file from /sites-available I am having a problem seems like rewrite engine redirects all requests to django, so static and php files are not served and instead i see the django 404 page. If I get rid of rewrite rule then static files and php works. here is my apache config file from /sites-available <VirtualHost *:80> ServerAdmin webmaster@localhost DocumentRoot /home/www/django <Directory /> Options +FollowSymLinks ExecCGI Indexes AllowOverride None DirectoryIndex index.php AddHandler wsgi-script .wsgi </Directory> RewriteEngine On RewriteCond %{REQUEST_FILENAME} !-f RewriteRule ^(.*)$ /mysite.wsgi/$1 [QSA,PT,L] ~ and my .wsgi file: import site site.addsitedir('/home/user/.virtualenvs/url.com/lib/python2.6/site-packages') import os, sys path = '/home/www/django' if path not in sys.path: sys.path.append(path) os.environ['DJANGO_SETTINGS_MODULE'] = 'mysite.settings' sys.path.append(path + '/mysite') import django.core.handlers.wsgi _application = django.core.handlers.wsgi.WSGIHandler() import posixpath def application(environ, start_response): # Wrapper to set SCRIPT_NAME to actual mount point. environ['SCRIPT_NAME'] = posixpath.dirname(environ['SCRIPT_NAME']) if environ['SCRIPT_NAME'] == '/': environ['SCRIPT_NAME'] = '' return _application(environ, start_response) the document root directory on disk (/home/www/django) contains php files, images, and the mysite.wsgi file.. thanks for your help

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• How to know if your computer is hit by a dnschanger virus?

  - by kira

  The Federal Bureau of Investigation (FBI) is on the final stage of its Operation Ghost Click, which strikes against the menace of the DNSChanger virus and trojan. Infected PCs running the DNSChanger malware at unawares are in the danger of going offline on this coming Monday (July 9) when the FBI plans to pull down the online servers that communicate with the virus on host computers. After gaining access to a host PC, the DNSChanger virus tries to modify the DNS (Domain Name Server) settings, which are essential for Internet access, to send traffic to malicious servers. These poisoned web addresses in turn point traffic generated through infected PCs to fake or unsafe websites, most of them running online scams. There are also reports that the DNSChanger virus also acts as a trojan, allowing perpetrators of the hack attack to gain access to infected PCs. Google issued a general advisory for netizens in May earlier this year to detect and remove DNSChanger from infected PCs. According to our report, some 5 lakh PCs were still infected by the DNSChanger virus in May 2012. The first report of the DNSChanger virus and its affiliation with an international group of hackers first came to light towards the end of last year, and the FBI has been chasing them down ever since. The group behind the DNSChanger virus is estimated to have infected close to 4 million PCs around the world in 2011, until the FBI shut them down in November. In the last stage of Operation Ghost Click, the FBI plans to pull the plug and bring down the temporary rogue DNS servers on Monday, July 9, according to an official announcement. As a result, PCs still infected by the DNSChanger virus will be unable to access the Internet. How do you know if your PC has the DNSChanger virus? Don’t worry. Google has explained the hack attack and tools to remove the malware on its official blog. Trend Micro also has extensive step-by-step instructions to check if your Windows PC or Mac is infected by the virus. The article is found at http://www.thinkdigit.com/Internet/Google-warns-users-about-DNSChanger-malware_9665.html How to check if my computer is one of those affected?

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• Drupal with clean urls turned on is putting question marks in URL

  - by aussiegeek

  I have a drupal site with clean urls, the pages load correctly, but then the URL is rewritten with a question mark in it, which I don't want the user to see. My .htaccess is: <IfModule mod_rewrite.c> RewriteEngine on # If your site can be accessed both with and without the 'www.' prefix, you # can use one of the following settings to redirect users to your preferred # URL, either WITH or WITHOUT the 'www.' prefix. Choose ONLY one option: # # To redirect all users to access the site WITH the 'www.' prefix, # (http://example.com/... will be redirected to http://www.example.com/...) # adapt and uncomment the following: # RewriteCond %{HTTP_HOST} ^example\.com$ [NC] # RewriteRule ^(.*)$ http://www.example.com/$1 [L,R=301] # # To redirect all users to access the site WITHOUT the 'www.' prefix, # (http://www.example.com/... will be redirected to http://example.com/...) # uncomment and adapt the following: # RewriteCond %{HTTP_HOST} ^www\.example\.com$ [NC] # RewriteRule ^(.*)$ http://example.com/$1 [L,R=301] # Modify the RewriteBase if you are using Drupal in a subdirectory or in a # VirtualDocumentRoot and the rewrite rules are not working properly. # For example if your site is at http://example.com/drupal uncomment and # modify the following line: # RewriteBase /drupal # # If your site is running in a VirtualDocumentRoot at http://example.com/, # uncomment the following line: RewriteBase / # Rewrite URLs of the form 'x' to the form 'index.php?q=x'. RewriteCond %{REQUEST_URI} !(connect|administration) RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteCond %{REQUEST_URI} !=/favicon.ico RewriteRule ^(.*)$ index.php?q=$1 [L,QSA] </IfModule>

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• Can't connect to LAN when connected to D-Link DIR-615

  - by Senseful

  I'm have a D-Link DIR-615 Wireless N 300 Router. I didn't use the CD it comes with to set up the network. Instead I configured it manually through the router's settings that are accessed via a web browser. The main changes I made are: Secured the router so that a password is required before clients can use the wireless internet. Broadcasting 802.11N only (not B or G). I can connect to the router just fine and I'm able to access the internet. The only problem is that I don't see any of the other computers in my LAN. When I try connecting to another Wi-Fi router that I have (which is connected to the same network), I can see all of the computer's on my LAN just fine. Therefore, I'm guessing that the reason I can't connect to the LAN is not a problem with my computer and is a problem with the router instead. I'm on a MacBook Air running Mac OS X 10.6.6. I tried contacting D-Link technical support, but they only try to help you if you have problems connecting to the internet. They aren't really concerned with problems that have to do with the accessing PC's on the same network.

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• Error 720 on VPN (PPTP) attempt

  - by Andy Shulman

  When I attempt to connect to a server running XP x64 (so essentially Server 2003) using a PPTP connection, it fails with client-side error Registering your computer on the network... Error 720: A connection to the remote computer could not be established. You might need to change the network settings for this configuration. and server-side error Event ID: 20050 The user WINSERV3\Andy connected to port VPN8-1 has been disconnected because no network protocols were successfully negotiated. I have configured the router to pass both TCP packets on 1723 and GRE packets. I have used Wireshark (filtering out ARP, UDP, and all TCP ports other than 1723) to observe the packets received by the server. Wireshark does not explicitly name any protocol GRE, but it does tell me the server sent and received TCP, PPTP, PPP LCP, PPP CHAP, PPP CBCP, and PPP IPCP. The connection seems to go wrong at packet 30, where the protocol is PPP LCP, with the payload of the packet being labeled "Protocol Reject". Obviously, this is going from server to client. This would seem to lead to the conclusion that there is something wrong with my client, which runs Windows 7 Ultimate x64. However, it is able to connect to my house's router, which runs the DD-WRT firmware and is thus a PPTP endpoint. I'm thoroughly at a loss. Please help!

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• A network-related or instance-specific error occurred while establishing a connection to SQL Server

  - by sf

  Hi, I'm getting the following error when trying to load an Asp.NET MVC App on IIS 7 with Sql Server 2008 Express. The App uses Linq to SQL. A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) I've done some searching and all answers point to enabling TCP connections in Sql Server Configuration which I have done to no avail. The connection string I am using is: Server=SERVERNAME\SQLEXPRESS;Database=DBName;Integrated Security=true The catch. I have another app that already could talk to the Sql Server just fine. Even before playing around with the Sql Server Configuration Settings. The other app uses the following connectionstring: Data Source=SERVERNAME\SQLEXPRESS;Initial Catalog=OtherDbName;Integrated Security=True;Persist Security Info=False;Connect Timeout=120 I've tried this connectionstring on the app that isn't working and it still doesn't work. Please help. I think i'm about to go crazy

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• Perl TDS character sets

  - by skiphoppy

  I'm using the FreeTDS driver with DBD::Sybase, connecting to an MS SQL Server. When I query certain values of certain records, I get this error: DBD::Sybase::st fetchrow_arrayref failed: OpenClient message: LAYER = (0) ORIGIN = (0) SEVERITY = (9) NUMBER = (99) Server , database Message String: WARNING! Some character(s) could not be converted into client's character set. Unconverted bytes were changed to question marks ('?'). This seems to happen for records that contain special Windows character-set characters, such as curly quotes, copied and pasted from people's Outlook and Word messages. Unfortunately, I do not have any control of this database; sanitizing the input on the way in is obviously the way to go, but is not available to me. What FreeTDS settings do I need to change to be able to successfully query these records? Additional information: The query works fine from tsql. I only get this error through Perl's DBD::Sybase interface. (Should I test through something else? I don't have the expertise yet to install PHP or Python. I've got jTDS and can use it, but I think that's a completely different implementation, not an interface to FreeTDS.) Adding client charset = UTF-8 to my freetds.conf file results in "Out of memory!" printed to STDERR.

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• Can't access IIS 7 server URL from the same IIS 7 server.

  - by Kevin Raffay

  We have an intranet site ie, xxx.yyyy.com, that users access by entering "http"://xxx.yyy.com. Our problems started when we migrated to IIS 7 running on a new 2003 server. We got rid of our single-sign on code and implemented a security model where we capture a user's domain credentials which we then authenticate against a DB. In order to get the domain credentials passed to our ASP.NET app, we have the following settings: Anonymous Authentication:Disabled ASP.NET Impersonation: Enabled Basic/Digest/Forms Authentication: Disabled Windows Authentication: Enabled We allow "*" and deny "?" in the web.config. Browsing "http"://xxx.yyy.com from any client PC results in a domain login prompt, and if your enter a proper user/pwd, you can get in. However, browsing "http"://xxx.yyy.com while remoting into the server results in 3 domain login prompts and eventually a 401 error - unauthorized. We have traced this behavior to problems with our web site where we have pages doing "screen scraping" using the HttpRequest calling a url on the same server. When doing a HttpRequest from any other client, using a test harness that passes authorized credentials, all is good. So internal HttpRequest calls on the server fail, just like attempts to browse that server's url from within a remote session. Why would a to "http"://xxx.yyy.com on server xxx.yyy.com fail authentication?

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• Advice needed: ADSL and VPN for a small company

  - by Saajid Ismail

  Hi. I need advice on purchasing an ADSL modem/router for a small company. At the moment, we are using the iBurst Wireless service for internet connectivity. I have the iBurst desktop modem, which connects to my Netgear WNR2000 router via ethernet. I am using the Netgear WNR2000 to deploy a wireless network as well. I have also set up a VPN using Windows Server 2003, and enabled the VPN Passthrough settings on the Netgear router. I am able to connect to the office network remotely without difficulty. However the problem that I've read is that the Netgear WNR2000 only supports VPN passthrough for a single session. This is simply not good enough. I need to be able to support at least 3 concurrent VPN connections immediately, and up to 5 in the near future. Now I am cancelling my iBurst Wireless service and have just got my ADSL line installed. I have to purchase an ADSL modem, and now is a good time to think of future proofing my investment. I need a good ADSL modem, that will allow me to support at least 5 concurrent VPN connections, or more, without breaking the bank. My budget is about 150-200 USD. I believe that my current Netgear WNR2000 router will be useless, except maybe to extend my wireless network in the future by a bit. Is there a solution where I can still use my Netgear WNR2000 for WiFi, for e.g., by connecting a cheaper non-WiFi ADSL modem to the Netgear router? If not, then which WiFi-enabled ADSL modem/router that supports at least 5 VPN passthroughs can you recommend? To sum it up, I need an ADSL modem/router that is: ADSL & ADSL2+ compatible has built-in 802.11n 270/300mbps WiFi (if having this feature doesn't push the price up too much) supports at least 5 VPN connections using VPN passthrough EDIT: Answer 2.10 in the following FAQ has me a bit worried - What is VPN/multiple VPN Pass-through?

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• Strange performance issue with Dell R7610 and LSI 2208 RAID controller

  - by GregC

  Connecting controller to any of the three PCIe x16 slots yield choppy read performance around 750 MB/sec Lowly PCIe x4 slot yields steady 1.2 GB/sec read Given same files, same Windows Server 2008 R2 OS, same RAID6 24-disk Seagate ES.2 3TB array on LSI 9286-8e, same Dell R7610 Precision Workstation with A03 BIOS, same W5000 graphics card (no other cards), same settings etc. I see super-low CPU utilization in both cases. SiSoft Sandra reports x8 at 5GT/sec in x16 slot, and x4 at 5GT/sec in x4 slot, as expected. I'd like to be able to rely on the sheer speed of x16 slots. What gives? What can I try? Any ideas? Please assist Cross-posted from http://en.community.dell.com/support-forums/desktop/f/3514/t/19526990.aspx Follow-up information We did some more performance testing with reading from 8 SSDs, connected directly (without an expander chip). This means that both SAS cables were utilized. We saw nearly double performance, but it varied from run to run: {2.0, 1.8, 1.6, and 1.4 GB/sec were observed, then performance jumped back up to 2.0}. The SSD RAID0 tests were conducted in a x16 PCIe slot, all other variables kept the same. It seems to me that we were getting double the performance of HDD-based RAID6 array. Just for reference: maximum possible read burst speed over single channel of SAS 6Gb/sec is 570 MB/sec due to 8b/10b encoding and protocol limitations (SAS cable provides four such channels).

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• Debugging UI Problems in IE8 (Was IE8 on Windows 7 Authentication Mess)

  - by alharaka

  UPDATE: I think the real question I need to ask here is: how does a technician debug UI problems with Internet Explorer, and not HTML rendering issues that have pretty good tools? I am aware of the SysInternals tools and others mentioned below, but maybe I am not harnessing their power properly. Someone else in the TechNet forum I mentioned had a similar issue. Again, I have lots of data, I am not sure how to properly interpret it. ORIGINAL POST: So I tried the venerable Technet Forums to solve this isse. In short, the Windows Security dialog has no place to put credentials, rendering pretty much useless. This happens to apply for a whole bunch of our intranet websites, and only a select number of users with a few laptops have this problem. It ends up looking like this. Things I have tried so far: Disabling local Group Policy (not domain connected) Disabling local Security Policy Resetting IE settings A few system restores Re-registering a bunch of IE DLL's and all other steps here Reinstalling IE8 (dism /online /disable-feature /featurename:"internet-explorer-optional-x86, reboot, dism /online /enable-feature /featurename:"internet-explorer-optional-x86, and reboot) And SFC scan, which found nothing Still, nothing. Not only am I fed up, but I have begun to really work with APIExplorer and Procmon as mentioned in the Technet original because I want to know WHAT is happening, not just fix it. Any thoughts?

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• MySQL tmpdir on /dev/shm with SELinux

  - by smorfnip

  On RHEL5, I have a small MySQL database that has to write temp files. To speed up this process, I would like to move the temporary directory to /dev/shm by putting the following line into my.cnf: tmpdir=/dev/shm/mysqltmp I can create /dev/shm/mysqltmp just fine and do chown mysql:mysql /dev/shm/mysqltmp chcon --reference /tmp/ /dev/shm/mysqltmp I've tried to make SELinux happy by applying the same settings that are in effect for /tmp/ (and /var/tmp/), which is presumably where MySQL is writing its tmp files if tmpdir is undefined. The problem is that SELinux complains about MySQL having access to that directory. I get the following in /var/log/messages: SELinux is preventing mysqld (mysqld_t) "getattr" to /dev/shm (tmpfs_t). SELinux is a hard mistress. Details: Source Context root:system_r:mysqld_t Target Context system_u:object_r:tmpfs_t Target Objects /dev/shm [ dir ] Source mysqld Source Path /usr/libexec/mysqld Port <Unknown> Host db.example.com Source RPM Packages mysql-server-5.0.77-3.el5 Target RPM Packages Policy RPM selinux-policy-2.4.6-255.el5_4.1 Selinux Enabled True Policy Type targeted MLS Enabled True Enforcing Mode Enforcing Plugin Name catchall_file Host Name db.example.com Platform Linux db.example.com 2.6.18-164.2.1.el5 #1 SMP Mon Sep 21 04:37:42 EDT 2009 x86_64 x86_64 Alert Count 46 First Seen Wed Nov 4 14:23:48 2009 Last Seen Thu Nov 5 09:46:00 2009 Local ID e746d880-18f6-43c1-b522-a8c0508a1775 ls -lZ /dev/shm shows drwxrwxr-x mysql mysql system_u:object_r:tmp_t mysqltmp and permissions for /dev/shm itself are drwxrwxrwt root root system_u:object_r:tmpfs_t shm I've also tried chcon -R -t mysqld_t /dev/shm/mysqltmp and setting the group on /dev/shm to mysql with no better results. Shouldn't it be enough to tell SELinux, hey, this is a temp directory just like MySQL was using before? Short of turning off SELinux, how do I make this work? Do I need to edit SELinux policy files?

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• Windows 7 migration led to crashdump and hibernate problems

  - by MartyMacGyver

  Note: I'm using a Samsung 830 SSD (migrated OS from defunct PC) and other than these two (interrelated?) problems it's working fine. Surprisingly well actually. Motherboard is a ASUS P8Z77-V Deluxe. Problem 1: Crashdumps are not working. volmgr throws an event 45 "The system could not sucessfully load the crash dump driver." whenever you modify crashdump settings, or if a crashdump occurs. diskpart says that "Crashdump disk = no" which is peculiar. Problem 2: Hibernation isn't working. Again, volmgr throws the same event 45 if you try to hibernate. The screen blanks, then you're at the password prompt. No sleepage occurs. (Yes, I know I should avoid hibernation on SSDs but it's enabled and the hibernation file is definitely there so I'd like to know why it's failing). Diskpart claims "Hibernation file = no" which is again peculiar... it's plainly there and getting created by the system. The common factor appears to be volmgr and/or the crashdump "service" (if that's what it is). I'd much rather get this working than spend days reinstalling and reconfiguring the entire system, especially when it's working perfectly otherwise. Sleep works as well (as long as it's not hybrid sleep). So, what defines the flags "Crashdump disk" and "Hibernation file disk" in diskpart's output? And what might be going wrong that's breaking crashdumps in particular?

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• Problems configuring DB2 CLI/ODBC System DSN ODBC Data Source Administrator

  - by Komyg

  I am trying to create a System DSN ODBC connection to a DB2 9.5 database, but I am getting a very strange problem. I've looked through the internet and found the following page that has some instructions on how I should proceed: http://www.ryslander.com/how-to-install-and-configure-db2-odbc-driver/. I followed these instructions and I am able to create a new System DSN, however when I try to configure it it seems as if my configurations don't work at all. For example, when I click on the "Configure" button on my System DSN and I add a TCP/IP protocol configuration on the "Advanced Settings" tab and click "Ok", no errors appear, but when I click on "Configure" again my TCP/IP setting has vanished. This happened to all my other configurations, such as database name, username, password etc. Could you help me figure out what I am doing wrong? Note: my user is in the administrator group and I am using a Windows Server 2008 R2 Enterprise x64. UPDATE I managed to create a User DSN and connect to the database. However the problem with the System DSN remains.

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• How to restore infrared support in Windows XP?

  - by Emil Rasmussen

  My infrared port is not working on my Windows XP SP 3 (Thinkpad X60). I can see it Device Manager, and it's status is, that it is working probably. The problem manifests in several ways. Originally I was trying to transfer data from my Polar RS800CX watch, and the Polar ProTrainer 5 software gave me the this error message: "Communication port couldn't be opened". Then I tried to connect the watch to another computer, and the infrared connection was established immediately. I then tried to connect the other computer to my Thinkpad X60. The other computer again immediately showed the Wireless Link icon "'computername' is in range" in the notification area. But nothing is shown on the Thinkpad, and a file transfer to the Thinkpad is unsuccessful with an error message that reports that "the target machine actively refused it [the connection]". This brings me to conclude that the infrared support in Windows on the Thinkpad is somehow broken. This is further supported by the fact that I can't find the "Wireless Link" icon in the Control Panel and when I try to run the irprops.cpl nothing happens. So the question is, how to reinstall the infrared support? Some of the solutions that I have explored is: I have tried to disable/enable the infrared in the BIOS - to trick a re-installation. The IR modules settings on the other computer that can get a successful IR connection is an exact match to the ThinkPad that can't get a connection. The was a problem in Windows XP SP 2 with the Wireless Link icon - MS KB article - but that hotfix can't be applied on SP 3 installation. I also guess that the hotfix is included in SP 3. Any other suggestions?

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• ESXi Server with 12 physical cores maxed out with only 8 cores assigned in virtual machines

  - by Sam

  I have an ESXi 5 server running on a 2-processor, 12-core system with hyperthreading enabled. So: 12 physical cores, 24 logical ones. On this server are 4 Windows 7 VMs, each configured for 2 processors, each running VMware Tools. Looking at my stats in vSphere, my "core utilization" is constantly maxed out. Yes, these machines are working hard, but only 8 cores have been allocated. How is this possible? Should I look into reducing the processor count per machine as in this post: VMware ESX server? I checked to ensure that hardware virtualization is enabled in the BIOS of the machine (a DELL R410). I've also started reading up on configuration, but being a newbie there's a lot of material to catch up on. It also seems I should only bother with advanced settings and pools if I'm really pushing the load, and I don't think that I should be pushing it with so few VMs. I suspect that I have some basic, incorrect configuration setting, but it's also possible that I have some giant misconceptions about virtualization. Any pointers? EDIT: Given the responses I've gotten so far, it seems that this is a measurement problem and not a configuration problem, making this less critical. Perhaps the real question is: How does the core utilization of the server reach a higher percentage than all individual cores' core utilization, and given that this possibility makes the metric useless for overall server load, what is the best global metric for measuring CPU load on hyper-threaded systems?

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• Improving Performance of RDP Over LAN

  - by Jared Brown

  Architecture: A deployment of 6 new HP thin clients (Windows XP Embedded) with TCP/IP access to several new HP servers (Windows 2003 Server). Each thin client is connected over fiber optic to a Gigabit Cisco switch, which the servers are connected to. There are 10/100 Ethernet to fiber converter boxes on each end of the fiber cables. Problem: Noticeable lag over RDP while using the Unigraphics CAD package. 3D models take .5 to 1 second to respond to mouse actions. Other Details: Network throughput on each thin client's RDP session is 7288 kbps. RDP connection settings - color setting: 15k, all themes, etc. turned off. Local and remote system performance stats are well within norms (CPU, Memory, and Network). Question: Are there newer versions of terminal services or RDP I can use on my existing OSes? Are there compression algorithms, etc. that are well suited for a high-bandwidth LAN? Are there valid alternatives that will yield higher performance (i.e. UltraVNC with drivers installed)? Are there TCP/IP tuning options I can exploit?

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• Router slowing my connection?

  - by Roberto

  I have a Linksys WRT54G and I pay for a 12Mbps connection. I've been testing my connection using speedtest.net for many days and always get 8Mbps. I called the support and they told me to bypass the router and test. I did it and got 16Mbps (much more than I pay for), so I thought "this guy just changed my speed so can he blame my router", and he blamed it. But to my surprise, everytime I bypass the router I get 16Mbps and when I use the router I get 8Mbps. Is this guy trolling me somehow (configuring the VOIP-modem-stuff to different profiles depending o the MAC address connecting to it) or is my router a POS? How can I find out? I don't know what's the thing the router connects to, it's a kind of VOIP adapter; the link is this one, but unfortunately I don't think you'll understand because it's in Portuguese. I know they can remotely connect to it, that's the origin of my conspiracy theory :) I just tested wired to the router and got 10Mbps (and still 8Mbps on wifi and 16Mbps without router) O_o I'm 5cm away from my router, so no obstacles to interfere, right? ------ UPDATE ------- It's a WRT54G V8, I'm using firmware v8.00.7 (will install 8.00.8 tomorrow, but I saw that it's only a minor fix to UPnP denial of service security vulnerability). Results: IPerf LAN-LAN: 80Mbps IPerf LAN-WLAN: 19Mbps (therefore we can ignore wireless issues/settings) I wasn't able to make the (W)LAN-WAN NAT-enabled test with IPerf, I get a connection refused error. I'm not sure if did it right: ran in server mode, configured router to forward that port to my IP and tried to connect to my internet IP that got from this site. I don't think there is a way to disable NAT using this firmware. Question: Let's suppose it's an underpowered hardware issue. Is it right to assume that custom firmwares could resolve the issue because they are possibly better implemented and would make better use of the router resources? I couldn't find any references pointing to wired performance improvements with the use of custom firmware.

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• Prevent Cisco VPN from interrupting home networking

  - by jkohlhepp

  I just got a new laptop, and for the most part have left its settings alone. Today I was trying to get some sharing going between my desktop and the laptop. Both machines are connected to the same wireless network and both machines consider that network to be a Home network. Both are running Win7 Home Premium. It seems like my laptop is aware of my desktop on the network. It can ping it by IP or by computer name. When I go to Network from the laptop, I can see the desktop in the list of computers. However, my desktop cannot ping the laptop, nor can it see it within Network. My desktop has a Homegroup set up, but my laptop says "There is currently no homegroup on the network". I do have network discovery turned on for both machines. Why can my desktop not "talk" to my laptop but it works the other way around? Update: Disabling the Windows Firewall on the laptop somewhat fixes the problem. With it disabled, my desktop can ping my laptop, but still my laptop can't see the homegroup. Also, it can ping via hostname, which resolves to IPv6, but can't ping via the IPv4 address. Obviously I'd rather not leave my firewall disabled, so I need a more specific fix. Update 2: Aha! It is the Cisco VPN software I was running to connect to work computers. Once I disconnected and exited from that, the two PCs seemed to be talking normally and the homegroup was visible to the laptop. So now my question has morphed: how can I prevent Cisco VPN from interrupting my home networking?

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• Port forwarding + shared connection with Ubuntu

  - by Joey Adams

  Because my wireless router's ethernet ports are defective, I set up a shared wireless connection from my laptop (which has wifi) to my eMac (which does not) via a crossover ethernet cable. The laptop is behind a router as 192.168.1.131, and the eMac is behind the laptop as 10.42.43.1 . The laptop is running Ubuntu 9.10 (Karmic). I achieved the shared connection through NetworkManager Applet. I right-clicked on the network icon at the topright, went to Edit Connections, selected the Wired connection named "Auto eth0", clicked "Edit...", went to the "IPv4 Settings" tab, and selected the Method "Shared to other computers". The eMac can now access the Internet. Now I want to enable port forwarding. There's a game I want to play that needs port 6112 forwarded (both TCP and UDP) in order to host games. I set up the router to enable port forwarding for 192.168.1.131 (the laptop), but port forwarding still isn't available on the eMac. I suppose I need to pretend my laptop is a router and configure port forwarding on it, indicating that incoming connections to the laptop (192.168.1.131) should be forwarded to the eMac on the shared connection (10.42.43.1 ). Thus, packets coming into the router on port 6112 would be redirected to the laptop (by the router), then to the eMac (by the laptop). My question is, how would I do that on Ubuntu (in light of NetworkManager's presence)? Also, if I can't get this to work, does anyone mind hosting a comp stomp? :D

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• Apache & SVN on Ubuntu - Post-commit hook fails silently, pre-commit hook “Permission Denied”

  - by 113169587962668775787

  I've been struggling for the past couple days to get post-commit email notifications working on my SVN server (running via HTTP with Apache2 on Ubuntu 9.10). SVN commits work fine, but for some reason the hooks are not being properly executed. Here are the configuration settings: - Users access the repo via HTTP with the apache dav_svn module (I created users/passwords via htpasswd in a dav_svn.passwd file). dav_svn.conf: <Location /svn/repos> DAV svn SVNPath /home/svn/repos AuthType Basic AuthName "Subversion Repository" AuthUserFile /etc/apache2/dav_svn.passwd Require valid-user </Location> I created a post-commit hook file that writes a simple message to a file in the repository root: /home/svn/repos/hooks/post-commit: #!/bin/sh REPOS="$1" REV="$2" /bin/echo 'worked' > ${REPOS}/postcommit.log I set the entire repository to be owned by www-data (the apache user), and assigned 755 permissions to the post-commit script when I test the post-commit script using the www-data user in an empty environment, it works: sudo -u www-data env - /home/svn/repos/hooks/post-commit /home/svn/repos 7 But when I commit on a client machine, the commit is successful, but the post-commit script does not seem to be executed. I also tried running a simple script for the pre-commit hook, and I get an error, even with an empty pre-commit script: "Commit failed (details follow): Can't create null stdout for hook '/home/svn/repos/hooks/pre-commit': Permission denied" I did a few searches on Google for this error and I presume that this is an issue with the apache user (www-data) not having adequate permissions, specifically to execute /dev/null. I also read that the reason post-commit fails silently is because that it doesn't report with stdout. Anyway, I've also tried giving the apache user (www-data) ownership of the entire repository, and edited the apache virtualhost to allow operations on the server root, and I'm still getting permission denied /etc/apache2/sites-available/primarydomain.conf <Directory /> Options FollowSymLinks AllowOverride None Order allow,deny Allow from all </Directory> Any ideas/suggestions would be greatly appreciated! Thanks

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• Azure can't ping or telnet VM from client

  - by Raif

  I have a VM on Azure with an instance sqlserver 2012 running on it. From my work computer and my home computer I can't get sqlserver management studio connect to it. I have looked at ALL the settings recommended in numerous articles. everything is setup correctly. endpoint 1433 Private and public sqlserver tcp enabled. sqlserver tcp listening on right port sqlserver using mixed auth windows fire wall, holes poked and then disabled on both client and VM can log in from VM using the credentials that I'm trying to use remotely further more I can't ping the dns or ip or tellnet address from my local machines. I can however hit the iis from a browser using the ip. strange. CS asked me to download MS Network Monitor, which I did and pinged and telneted. I have the results saved but can't really make heads or tails of them. CS hasn't responded yet. I can post some info here that would help. EDIT Never one to shrink from a challenge, I deleted my VM and re-did everything. Now it works although my confidence azure is somewhat shaken.

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• Hardware Requirements & Tuning - Flash Media Server 3.5 Interactive

  - by Anthony Kanago

  I am trying to spec out a server to purchase (physically, not rented from someone like softlayer.com) to run an intranet instace of Flash Media Server 3.5 Interactive. In general, the server will likely be fielding somewhere on the order of 400 connections at a time at the upper limit. Of course, should this increase, we don't want to be stuck. While the decision is not final, we will likely be running the server on Red Hat rather than Windows. The server will be run on gigabit ethernet. I have two related questions: What sort of hardware would I need realistically to support this? What advice can you offer for settings in tuning FMS/the OS to be performant to this level? We are looking for a bare minimum that will run this effectively to save on costs. Realistically, the average number of connections will be fairly low (50-150) by comparison with that upper limit estimate. To reiterate: we just want to be cautious in not getting caught when we need more power, but we also need a low-cost solution (doesn't everyone?) and that may take priority. Windows and RedHat are the two officially supported operating systems. Since FMS is stated to be 32-bit only, I'm sticking with a 32-bit OS. The hardware requirements listed by Adobe on their website are: 3.2GHz Intel® Pentium® 4 processor (dual Intel Xeon® or faster recommended) 2GB of RAM (4GB recommended) 1Gb Ethernet card So what realistically do I need for those sorts of connection numbers, and what can I due to tune things up to get more out of less hardware? Thanks!

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• Cygwin, ssh, and git on Windows Server 2008

  - by Paul

  Hi everyone. I'm trying to setup a git repository on an existing Windows 2008 (R2) server. I have successfully installed Cygwin & added git and ssh to the packages, and everything works perfectly (thanks to Mark for his article on it). I can ssh to localhost on the server, and I can do git operations locally on the server. When I try to do either from the client, however, I get the "port 22, Bad file number" error. Detailed SSH output is limited to this: OpenSSH_4.6p1, OpenSSL 0.9.8e 23 Feb 2007 debug1: Connecting to {myserver} [{myserver}] port 22. debug1: connect to address {myserver} port 22: Attempt to connect timed out without establishing a connection ssh: connect to host {myserver} port 22: Bad file number Google tells me that this means I'm being blocked, usually, by a firewall. So, double-checked the firewall settings on the server, rule is there allowing port 22 traffic. I even tried turning off the firewall briefly, no change in behavior. I can ssh just fine from that client to other servers. The hosting company swears that there's no other firewalls blocking that server on port 22 (or any other port, they claim, but I find that hard to believe). I have another trouble ticket into them, just in case the first support person was full of it, but meanwhile I wanted to see if anyone could think of anything else it can be. Thanks, Paul

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