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• Cisco ASA 5505 (8.05): asymmetrical group-policy filter on an L2L IPSec tunnel

  - by gravyface

  I'm trying to find a way to setup a bi-directional L2L IPSec tunnel, but with differing group-policy filter ACLs for both sides. I have the following filter ACL setup, applied, and working on my tunnel-group: access-list ACME_FILTER extended permit tcp host 10.0.0.254 host 192.168.0.20 eq 22 access-list ACME_FILTER extended permit icmp host 10.0.0.254 host 192.168.0.20 According to the docs, VPN filters are bi-directional, you always specify the remote host first (10.0.0.254), followed by the local host and (optionally) port number, as per the documentation. However, I do not want the remote host to be able to access my local host's TCP port 22 (SSH) because there's no requirement to do so -- there's only a requirement for my host to access the remote host's SFTP server, not vice-versa. But since these filter ACLs are bidirectional, line 1 is also permitting the remote host to access my host's SSH Server. The documentation I'm reading doesn't seem to clear to me if this is possible; help/clarification much appreciated.

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• How to configure mysqldump to avoid max_allowed_packet error

  - by Leopd

  Honestly it baffles me that with a completely default installation of mysql if I run mysqldump with default parameters it generates a SQL file that can't be imported into another completely default installation of mysql. From what I can gather it's got something to do with the max_allowed_packet setting and/or the net_buffer_length setting. I've read a bunch about this, and tried tweaking it a bunch of ways on both the export and import sides, but it still doesn't work. I keep getting the packet too big error on import. From everything I've read, here's my best guess: mysqldump --net_buffer_length=50000 myschema > giant_file.sql Because I read here that mysqldump refers to max_allowed_packet as net_buffer_length because ... uhh ... anyway. Then to import mysql --max_allowed_packet=999999 myschema < giant_file.sql But this still doesn't work. How do I export / import the database???

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• Wrong faces culled in OpenGL when drawing a rectangular prism

  - by BadSniper

  I'm trying to learn opengl. I did some code for building a rectangular prism. I don't want to draw back faces so I used glCullFace(GL_BACK), glEnable(GL_CULL_FACE);. But I keep getting back faces also when viewing from front and also sometimes when rotating sides are vanishing. Can someone point me in right direction? glPolygonMode(GL_FRONT,GL_LINE); // draw wireframe polygons glColor3f(0,1,0); // set color green glCullFace(GL_BACK); // don't draw back faces glEnable(GL_CULL_FACE); // don't draw back faces glTranslatef(-10, 1, 0); // position glBegin(GL_QUADS); // face 1 glVertex3f(0,-1,0); glVertex3f(0,-1,2); glVertex3f(2,-1,2); glVertex3f(2,-1,0); // face 2 glVertex3f(2,-1,2); glVertex3f(2,-1,0); glVertex3f(2,5,0); glVertex3f(2,5,2); // face 3 glVertex3f(0,5,0); glVertex3f(0,5,2); glVertex3f(2,5,2); glVertex3f(2,5,0); // face 4 glVertex3f(0,-1,2); glVertex3f(2,-1,2); glVertex3f(2,5,2); glVertex3f(0,5,2); // face 5 glVertex3f(0,-1,2); glVertex3f(0,-1,0); glVertex3f(0,5,0); glVertex3f(0,5,2); // face 6 glVertex3f(0,-1,0); glVertex3f(2,-1,0); glVertex3f(2,5,0); glVertex3f(0,5,0); glEnd();

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• Detecting walls or floors in pygame

  - by Serial

  I am trying to make bullets bounce of walls, but I can't figure out how to correctly do the collision detection. What I am currently doing is iterating through all the solid blocks and if the bullet hits the bottom, top or sides, its vector is adjusted accordingly. However, sometimes when I shoot, the bullet doesn't bounce, I think it's when I shoot at a border between two blocks. Here is the update method for my Bullet class: def update(self, dt): if self.can_bounce: #if the bullet hasnt bounced find its vector using the mousclick pos and player pos speed = -10. range = 200 distance = [self.mouse_x - self.player[0], self.mouse_y - self.player[1]] norm = math.sqrt(distance[0] ** 2 + distance[1] ** 2) direction = [distance[0] / norm, distance[1 ] / norm] bullet_vector = [direction[0] * speed, direction[1] * speed] self.dx = bullet_vector[0] self.dy = bullet_vector[1] #check each block for collision for block in self.game.solid_blocks: last = self.rect.copy() if self.rect.colliderect(block): topcheck = self.rect.top < block.rect.bottom and self.rect.top > block.rect.top bottomcheck = self.rect.bottom > block.rect.top and self.rect.bottom < block.rect.bottom rightcheck = self.rect.right > block.rect.left and self.rect.right < block.rect.right leftcheck = self.rect.left < block.rect.right and self.rect.left > block.rect.left each test tests if it hit the top bottom left or right side of the block its colliding with if self.can_bounce: if topcheck: self.rect = last self.dy *= -1 self.can_bounce = False print "top" if bottomcheck: self.rect = last self.dy *= -1 #Bottom check self.can_bounce = False print "bottom" if rightcheck: self.rect = last self.dx *= -1 #right check self.can_bounce = False print "right" if leftcheck: self.rect = last self.dx *= -1 #left check self.can_bounce = False print "left" else: # if it has already bounced and colliding again kill it self.kill() for enemy in self.game.enemies_list: if self.rect.colliderect(enemy): self.kill() #update position self.rect.x -= self.dx self.rect.y -= self.dy This definitely isn't the best way to do it but I can't think of another way. If anyone has done this or can help that would be awesome!

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• When mapping the surface of a sphere with tiles, how might you deal with polar distortion?

  - by clweeks

  It's easy to deal with the way locations interact on a clean Cartesian grid. It's just vanilla math. And you can kind of ignore the geometry of the sphere's surface for a bunch of it if you want to just truncate the poles or something. But I keep coming up with ideas for games where the polar space matters. Geo-coded ARGs and global roguelikes and stuff. I want square(ish?) locations -- reasonably representable by square tiles of the same size across the globe, anyway. This has to be a solved problem, right? What are the solutions? ETA: At the equator -- and assuming that your square locations are reasonably small, it's close enough to true that you can get away with having one square in the rows north and south of the most equatorial row. And you could probably get away with that by just hand-waving the difference up to like 45-degrees or so. But eventually, you need to have fewer squares in a pole-ward circumferential row. If I reduce the length of the row by one and offset the squares by 1/2 then they're just like hexes and it's relatively easy to do the coding to keep track of the connections. But as you get pole-ward, it gets more and more extreme. Projecting the surface of the world onto the surface of a cube is tempting. But I figured there must be more elegant solutions already in use. If I did the cube thing (not dissecting it further through geodesy) Are there any pros and cons related to placing the pole at the center of a face or at the vertex of three sides?

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• Imap server woes with Android Gingerbread email and Thunderbird

  - by Mojo

  I run my own mail server and use UW's imapd/popd daemons to provide service. This week I just upgraded my OG Droid to a new Droid 3, running Android 2.3.4 (Gingerbread). The email client is much improved over the previous one. But now I have a bad interaction when I try to access email using imap from Thunderbird on a laptop or desktop. Frequently Thunderbird will stop receiving any email at all, and it will appear only on the Droid. Sometimes a Thunderbird restart will make the mail appear, but none of my "deletes" will be recorded, so when I start Thunderbird again, all my old email reappears. If I kill all of the open imap daemons and restart xinetd, I can force it to behave for maybe a session. I've tried turning off IDLE service (push email) on both sides, to no apparent avail. I've also tried installing DroidMail with the same result.

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• Looking for alternative to NetNewsWire and Google Reader

  - by Janine Sisk

  I have used NetNewsWire on both Mac and iPhone for years, and have been reasonably happy. Unfortunately the latest version of NNW for Mac, which I just upgraded to, now matches Google Reader's policy of marking items read after 30 days. The older version I had been using did not do this. I regularly keep unread items for way longer than 30 days, and do eventually read them, so this is a major bummer for me. The iPhone version has behaved this way forever, but I was ok with that as long as I had the full list on my desktop. Keeping in sync between the iPhone and Mac is very important, so I need to find another online solution with clients available on both sides. I've done a little digging but haven't found much; it seems like Google has pretty much taken over this space. Any suggestions?

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• Confusion with floats converted into ints during collision detection

  - by TheBroodian

  So in designing a 2D platformer, I decided that I should be using a Vector2 to track the world location of my world objects to retain some sub-pixel precision for slow-moving objects and other such subtle nuances, yet representing their bodies with Rectangles, because as far as collision detection and resolution is concerned, I don't need sub-pixel precision. I thought that the following line of thought would work smoothly... Vector2 wrldLocation; Point WorldLocation; Rectangle collisionRectangle; public void Update(GameTime gameTime) { Vector2 moveAmount = velocity * (float)gameTime.ElapsedGameTime.TotalSeconds wrldLocation += moveAmount; WorldLocation = new Point((int)wrldLocation.X, (int)wrldLocation.Y); collisionRectangle = new Rectangle(WorldLocation.X, WorldLocation.Y, genericWidth, genericHeight); } and I guess in theory it sort of works, until I try to use it in conjunction with my collision detection, which works by using Rectangle.Offset() to project where collisionRectangle would supposedly end up after applying moveAmount to it, and if a collision is found, finding the intersection and subtracting the difference between the two intersecting sides to the given moveAmount, which would theoretically give a corrected moveAmount to apply to the object's world location that would prevent it from passing through walls and such. The issue here is that Rectangle.Offset() only accepts ints, and so I'm not really receiving an accurate adjustment to moveAmount for a Vector2. If I leave out wrldLocation from my previous example, and just use WorldLocation to keep track of my object's location, everything works smoothly, but then obviously if my object is being given velocities less than 1 pixel per update, then the velocity value may as well be 0, which I feel further down the line I may regret. Does anybody have any suggestions about how I might go about resolving this?

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• Can DVCSs enforce a specific workflow?

  - by dukeofgaming

  So, I have this little debate at work where some of my colleagues (which are actually in charge of administrating our Perforce instance) say that workflows are strictly a process thing, and that the tools that we use (in this case, the version control system) have no take on it. In otherwords, the point that they make is that workflows (and their execution) are tool-agnostic. My take on this is that DVCSs are better at encouraging people in more flexible and well-defined ways, because of the inherent branching occurring in the background (anonymous branches), and that you can enforce workflows through the deployment model you establish (e.g. pull requests through repository management, dictator/liutenant roles with their machines setup as servers, etc.) I think in CVCSs you have to enforce workflows through policies and policing, because there is only one way to share the code, while in DVCSs you just go with the flow based on the infrastructure/permissions that were setup for you. Even when I have provided the earlier arguments, I'm still unable to fully convince them. Am I saying something the wrong way?, if not, what other arguments or examples do you think would be useful to convince them? Edit: The main workflow we have been focusing on, because it makes sense to both sides is the Dictator/Lieutenants workflow: My argument for this particular workflow is that there is no pipeline in a CVCS (because there is just sharing work in a centralized way), whereas there is an actual pipeline in DVCSs depending on how you deploy read/write permissions. Their argument is that this workflow can be done through branching, and while they do this in some projects (due to policy/policing) in other projects they forbid developers from creating branches.

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• Geekswithblogs.net | Screen Resolutions of our Readers

  - by Jeff Julian

  Yesterday I talked about the Browsers we see being used by our readers driven off of our Google Analytics traffic and today I want to share with you the Screen Resolutions we see.  As a web developer most of my life, it is hard to decide how large you should build your application because typically you have a couple huge high resolution monitors on your desk, but you typical end user is thought to have 1024x768.  With HTML5/CSS3 out, it is a little better coming up with a design that will scale to all resolutions, but it is still nice to know the numbers when it comes to how much real estate do I have on my clients. If you look at these numbers for Geekswithblogs.net, we have a lot of high resolution monitors from users that visit the site.  After a little more investigation of the number you will notice we do not have as much height available as we do width.  If the primary goal of a site is to deliver as much data in the viewable area without scrolling, this becomes a challenge when most of our pages have long pieces of formatted data.  So our challenge is to build skins that use up more of the sides of the content toward the top on larger resolution browsers and then entice the reader to scroll to get the goodies embedded in the content of the posts.  Going to be an interesting battle for sure, but we really need more skin offerings on the site. Technorati Tags: Resolution Statistics,Geekswithblogs.net

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• FTP upload stalls at same point every time on FileZilla

  - by John

  On two different FTP accounts, I am having problems uploading files. I can login and see the contents of the dir, and start an upload. Using Filezilla the transfer seems to always stall at either 0.9% or 1.2% (always those two numbers) and may simply hang, or keep restarting and then again stop at the same point. WindowsXP FTP is not great but I get similar types of problems there... it starts uploading and after a short while I get a timeout error. FTP used to work fine, and I don't know if it's these accounts in particular (both have the same service provider although purchased on opposite sides of the world) or if "FTP is broken on my PC"... can that even happen?!

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• Auto-crop black margins dynamically of scanned images?

  - by naxa

  I have a notebook photocopied and the photocopy scanned, about 200 pages. For various reasons I need to print this material. There are large amounts of black areas at the sides of the page (after the page itself ends), "black margins". The image looks like this: I would like to remove the black places, but keeping all text. * The even and odd pages have the black part at different places. * Notably, there is a white edge outside the black one, too! * Most notably, the black areas has no fixed width (I've tried to overlay all the images for even and odd pages separately). It's width varies. The batch algorythm should be able to detect it. Is there a way to remove these black-white margins automatically, keeping the text?

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• LPR command won't recognize CUPS printer

  - by Datapimp23

  I have a cups server with one shared printer configured on it. It prints test pages without problems. printername (Idle, Accepting Jobs, Shared) Description: desc Location: Driver: Zebra ZPL Label Printer (grayscale, 2-sided printing) Connection: socket://172.20.50.26 Defaults: job-sheets=none, none media=oe_w288h432_4x6in sides=one-sided This is the output from lpstat -t. it shows that the printer is idle and accepting requests admin@SERVER:~$ lpstat -t scheduler is running no system default destination device for printername: socket://172.20.50.26 printername accepting requests since Thu 26 Jan 2012 01:29:35 PM CET printer printername is idle. enabled since Thu 26 Jan 2012 01:29:35 PM CET Now when I want to send a printjob to it via an LPR command it won't recognize the printer /usr/bin/lpr -P printername test.pdf Result lpr: ttn_seg_zebra1: unknown printer What am I missing here ?

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• Creating a 2D perspective in 3D game

  - by Accatyyc

  I'm new to XNA and 3D game development in general. I'm creating a puzzle game kind of similar to tetris, built with blocks. I decided to build the game in 3D since I can do some cool animations and transitions when using 3D blocks with physics etc. However, I really do want the game to look "2D". My blocks are made up of 3D models, but I don't want that to be visible when they're not animating. I have followed some XNA tutorials and set up my scene like this: this.view = Matrix.CreateLookAt(cameraPosition, Vector3.Zero, Vector3.Up); this.aspectRatio = graphics.GraphicsDevice.Viewport.AspectRatio; this.projection = Matrix.CreatePerspectiveFieldOfView( MathHelper.ToRadians(45.0f), aspectRatio, 1.0f, 10000.0f); ... and it gives me a very 3D-ish look. For example, the blocks in the center of the screen looks exactly how I want them, but closer to the edges of the screen I can see the rotation and sides of them. My guess is that I'm not after a perspective field of view, but any help on which field of view/settings to use to get a "flat" look when the blocks aren't rotated would be great!

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• Could I save printer's ink/toner by changing the font?

  - by Diogo

  I'm developing a Microsoft Word document that reached more than 200 pages and I want to print it using my Laserjet or my father's Inkjet printer. I can save paper using both sides of each sheet, however I can't save ink/toner using smaller fonts or un-bolding words (I already did it), so I started wondering about the fonts that I was using. For example, the most used fonts, Arial and Times New Roman have specific and relevant differences with regards to ink consumption: has uniform width across all the letters, and is more easily readable and "clean to see". has narrow width on center and an enlargement at the ends. Using Times New Roman will certainly save ink/toner but will also "pollute" the reader vision over time. So, there is some specific font (from more than 100 that I have on Windows) that could save ink and also keep a clean text?

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• Messaging with KnockoutJs

  - by Aligned

  MVVM Light has Messaging that helps keep View Models decoupled, isolated, and keep the separation of concerns, while allowing them to communicate with each other. This is a very helpful feature. One View Model can send off a message and if anyone is listening for it, they will react, otherwise nothing will happen. I now want to do the same with KnockoutJs View Models. Here are some links on how to do this: http://stackoverflow.com/questions/9892124/whats-the-best-way-of-linking-synchronising-view-models-in-knockout http://www.knockmeout.net/2012/05/using-ko-native-pubsub.html ~ this is a great article describing the ko.subscribable type. http://jsfiddle.net/rniemeyer/z7KgM/ ~ shows how to do the subscription https://github.com/rniemeyer/knockout-postbox will be used to help with the PubSub (described in the blog post above) through the Nuget package. http://jsfiddle.net/rniemeyer/mg3hj/ of knockout-postbox   Implementation: Use syncWith for two-way synchronization. MainVM: self.selectedElement= ko.observable().syncWith (“selectedElement”); ElementListComponentVM example: self.selectedElement= ko.observable().syncWith(“selectedElement”); ko.selectedElement.subscribe(function(){ // do something with the seletion change }); ElementVMTwo: self.selectedElement= ko.observable().syncWith (“selectedElement”); // subscribe example ko.postbox.subscribe(“changeMessage”, function(newValue){ }); // or use subscribeTo this.visible = ko.observable().subscribeTo("section", function(newValue) { // do something here }); · Use ko.toJS to avoid both sides having the same reference (see the blog post). · unsubscribeFrom should be called when the dialog is hidden or closed · Use publishOn to automatically send out messages when an observable changes o ko.observable().publishOn(“section”);

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• Migrating My GWB Blog Over To WordPress

  - by deadlydog

  Geeks With Blogs has been good to me, but there are too many tempting things about Word Press for me to stay with GWB.  Particularly their statistics features, and also I like that I can apply specific tags to my posts to make them easier to find in Google (and I never was able to get categories working on GWB). The one thing I don’t like about WordPress is I can’t seem to find a theme that stretches the Content area to take up the rest of the space on wide resolutions…..hopefully I’ll be able to overcome that obstacle soon though. For those who are curious as to how I actually moved all of my posts across, I ended up just using Live Writer to open my GWB posts, and then just changed it to publish to my WordPress blog.  This was fairly painless, but with my 27 posts it took probably about 2 hours of manual effort to do.  Most of the time WordPress was automatically able to copy the images over, but sometimes I had to save the pics from my GWB posts and then re-add them in Live Writer to my WordPress post.  I found another developers automated solution (in alpha mode), but opted to do it manually since I wanted to manually specify Categories and Tags on each post anyways.  The one thing I still have left to do is move the worthwhile comments across from the GWB posts to the new WordPress posts. The largest pain point was that with GWB I was using the Code Snippet Plugin for Live Writer for my source code snippets, and when they got transferred over to WordPress they looked horrible.  So I ended up finding a new Live Writer plugin called SyntaxHighlighter that looks even nicer on my posts If anybody knows of a nice WordPress theme that stretches the content area to fit the width of the screen, please let me know.  All of the themes I’ve found seem to have a max width set on them, so I end up with much wasted space on the left and right sides.  Since I post lots of code snippets, the more horizontal space the better! So if you want to continue to follow me, my blog's new home is now at https://deadlydog.wordpress.com

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• ATI Radeon 4350 lower resolutions do not fill screen in Windows 7

  - by rlandster

  I have a new Windows 7 64-bit machine with an ATI HD4350 card. The card is connected via VGA (DSUB) to a SyncMaster 205 BW LCD monitor. If I set the resolution to 1680x1050 the LCD screen is completely filled and everything looks fine. But, if I try to set the resolution to 1280x768 (my preferred resolution) only about 2/3 of the monitor screen is used. There are large black bars above and below the image (but not on the sides). I have successfully used this monitor at the 1280x768 resolution for many years without this problem (albeit in Windows XP and a different video card). Can anyone suggest how I can get adjust things so that the entire screen is used at the 1280x768 resolution?

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• How can I measure TCP timeout limit on NAT firewall for setting keepalive interval?

  - by jmanning2k

  A new (NAT) firewall appliance was recently installed at $WORK. Since then, I'm getting many network timeouts and interruptions, especially for operations which would require the server to think for a bit without a response (svn update, rsync, etc.). Inbound SSH sessions over VPN also timeout frequently. That clearly suggests I need to adjust the TCP (and ssh) keepalive time on the servers in question in order to reduce these errors. But what is the appropriate value I should use? Assuming I have machines on both sides of the firewall between which I can make a connection, is there a way to measure what the time limit on TCP connections might be for this firewall? In theory, I would send a packet with gradually increasing intervals until the connection is lost. Any tools that might help (free or open source would be best, but I'm open to other suggestions)? The appliance is not under my control, so I can't just get the value, though I am attempting to ask what it currently is and if I can get it increased.

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• Point in Polygon, Ray Method: ending infinite line

  - by user2878528

  Having a bit of trouble with point in polygon collision detection using the ray method i.e. http://en.wikipedia.org/wiki/Point_in_polygon My problem is I need to give an end to the infinite line created. As with this infinite line I always get an even number of intersections and hence an invalid result. i.e. ignore or intersection to the right of the point being checked what I have what I want My current code based of Mecki awesome response for (int side = 0; side < vertices.Length; side++) { // Test if current side intersects with ray. // create infinite line // See: http://en.wikipedia.org/wiki/Linear_equation a = end_point.Y - start_point.Y; b = start_point.X - end_point.X; c = end_point.X * start_point.Y - start_point.X * end_point.Y; //insert points of vector d2 = a * vertices[side].Position.X + b * vertices[side].Position.Y + c; if (side - 1 < 0) d1 = a * vertices[vertices.Length - 1].Position.X + b * vertices[vertices.Length - 1].Position.Y + c; else d1 = a * vertices[side-1].Position.X + b * vertices[side-1].Position.Y + c; // If points have opposite sides, intersections++; if (d1 > 0 && d2 < 0 ) intersections++; if (d1 < 0 && d2 > 0 ) intersections++; } //if intersections odd inside = true if ((intersections % 2) == 1) inside = true; else inside = false;

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• Workflow Automation software for SVN

  - by KyleMit

  We're currently using IBM's ClearQuest for task management and ClearCase for change management. They plug and play very well with each other. Users can create tasks in ClearCase as defects and enhancements, and developers can use those tasks to check out and modify code in source control. We're looking to upgrade to a better, more modern Source Control system, like SVN, although we're not married to that as our Source Control system. There are loads of source control systems out there, but I'm having difficulty finding one that also includes the ability to have users enter tasks and track them, especially in a native way to the source control system itself. Are there any products that replace ClearQuest for systems like SVN? Are there any other cheap / open source application pairs that handle both sides of the coin?

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• Can only connect to sql server express 2012 via named pipes

  - by YetAnotherDeveloper

  I have sql server express 2012 installed on windows 2008, locally everything works just fine i can connect via tcpip and named pipes. Remotely i can connect with ssms only using named pipes. I have tried disabling the firewall on both sides to eliminate blocking traffic. i have toggled the tcpip setting on and off (i read somewhere that they got it working just but flipping them off and back on). I have double/triple checked all the settings that i'm aware of and everything seems to be correct. Tcp is enabled Tcp port is set to 1433, udp port is set to 1434 Server has static ip Start up log says: Server is listening on [ 'any' 1433]. Firewall rules are in place Any suggestions on things that i can look into? i have really just run out of ideas.

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• Encryption over gigabit carrier ethernet

  - by Roy

  I would like to encrypt traffic between two data centres. Communication between the sites is provided as a standard provider bridge (s-vlan/802.1ad), so that our local vlan tags (c-vlan/802.1q) are preserved on the trunk. The communication traverse several layer 2 hops in the provider network. Border switches on both sides are Catalyst 3750-X with the MACSec service module, but I assume MACSec is out of the question, as I don't see any way to ensure L2 equality between the switches over a trunk, although it may be possible over a provider bridge. MPLS (using EoMPLS) would certainly allow this option, but is not available in this case. Either way, equipment can always be replaced to accommodate technology and topology choices. How do I go about finding viable technology options that can provide layer 2 point-to-point encryption over ethernet carrier networks?

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• Establish connection with an IP camera behind a modem-router assigned with a private IP by Internet Service Provider?

  - by silvernightstar

  Most solutions out there require the modem-router to have been assigned a public IP by the ISP. After which, one can access the IP camera via a portforward setting on the router. However, my ISP only provides private IPs internal to their system (they probably have a limited pool of public IPs). So I am unable to view my IP cameras in the way described. I'm wondering if there's a way to work around this problem without having to need a public IP. Since, after all, two users on Yahoo Messenger or Facebook Chat are able to find one another and exchange data despite both sides being within the internal networks of their respective ISPs. Given that I only plan to view my IP cameras via iOS or Android running on a smartphone or tablet, any ready-to-use solutions out there?

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• Transporting servers - need special rack/case

  - by Nso

  I am responsible for our companys server infrastructure at trade shows. We have 2 annual shows, 1 in Las Vegas and 1 in Amsterdam, so obviously our servers do quite a bit of travelling. Quite often, it gets home with pieces falling off, and insurance/rebuilding takes ages and cost a lot of money. For now I have been using a wooden rack-box, with steel-reinforced sides/corners, but I am looking for something tougher. Does anyone have experience with sending servers all around the world, without them dieing all the time?

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