Search Results

Search found 6625 results on 265 pages for 'advice'.

Page 240/265 | < Previous Page | 236 237 238 239 240 241 242 243 244 245 246 247  | Next Page >

• How to learn a new programming language? And how to choose the appropriate language?

  - by Sebi

  Unfortunately my last question was closed, so I reformulated the question: I know this question was here a lot of times and can't be answered at all, but im not looking for a single name, but rather for an advice in my situation. I learned programming with Java and now I'm developing in Java for more or less 5 years (at the university) and I thinks my programming skills their are really ok/average. I have also small experience in C/C++ and C#. Now I have some spare time and I'd like to learn a new language or deepen the knowledge of Java/C/C++. But how to choose the right language to learn? I'd like to learn a language which will be usefull in the future concerning working in a software development business? I know there is no single answer, but I'm sure you could mention some languages that are more usefull than others. And what's the best way to learn such a language efficiently (bearing in mind that one has already learned some other languages)? Just doing tutorials? Or trying to implement a project? Trying to move a Java project to the new language?

  Read the article

• IE7 li with image and text issue - Text . Almost working.

  - by jmoore111

  I'm using an unordered list. With an image to the left and text to the right. I only noticed today that IE7 was displaying this so badly that it wasn't even acceptable. Woops for not realising sooner. I have the given the image a class and the text wrapped in a seperate div. <ul> <li><a href="domain"><img src="http://www.domain.com/img.jpg" alt="img class="footer-thumb" width="40px" height="40px" /></a> <div class="recent-post-content"> <p>day date time</p> <p><a title="Content title" href="http://www.domain.com/contentitle &raquo;</a></p> </div></li></ul> What's happeninig so far is that it is perfect in every browser except in IE7 where the images are exactly where they should be but the class "recent-post-content" is all pushed up one exactly one image ([li] height) above so the last image doesn't have any text beside it and the first image ([li]) has its "recent-post-content" above it. I guess it's something simple but after getting this far on my own I thought it best to try and get some advice to fix the last little bit. Any ideas? Thanks

  Read the article

• Is my approach for persistent login secure ?

  - by Jay

  I'm very much stuck with the reasonable secure approach to implement 'Remember me' feature in a login system. Here's my approach so far, Please advice me if it makes sense and is reasonably secure: Logging: User provides email and password to login (both are valid).. Get the user_id from DB Table Users by comparing provided email Generate 2 random numbers hashed strings: key1, key2 and store in cookies. In DB Table COOKIES, store key1, key2 along with user_id. To Check login: If key1 and key2 both cookies exist, validate both keys in DB Table COOKIES (if a row with key1, and key2 exists, user is logged). if cookie is valid, regenrate key2 and update it in cookie and also database. Why re-genrating key: Because if someone steals cookie and login with that cookie, it will be working only until the real user login. When the real user will login, the stolen cookie will become invalid. Right? Why do I need 2 keys: Because if i store user_id and single key in cookie and database, and the user want to remember the password on another browser, or computer, then the new key will be updated in database, so the user's cookie in earlier browser/PC will become invalid. User wont be able to remember password on more than one place. Thanks for your opinions.

  Read the article

• Infrastructure for high transactional system (language & hosting suggestion help)

  - by RPS

  Some of our friends (University students) are trying to develop a twitter type application, I want to plan for at least 1000 transactions per second (I know it's wishful thinking) for initial launch. This involves several people connecting and getting updates and posting (text + images) to site. In the back end db will server the data and also calculates rankings of what to push to user based on complex algorithm on the fly real-time. Our group is familiar with Java and Tomcat/MySQL. We can also easily learn/code in PHP/MySQL. What is the best suited platform for our purpose ? Though Java seem to be easy to implement for us I am afraid that hosting will be a bit difficult. I could find cloud based php hosting services (like rackspace cloudsites) at reasonable cost. Amazon EC2 is a bit over our heads to manage on day-to-day. Also any recommendation on hosting ? (PHP or Java) We don't have millions in seed money but about $20K to start with. Any advice on above or any thing in general approach is much appreciated.

  Read the article

• Associate two sets of values

  - by PJW

  I have the following code - public static int GetViewLevel(string viewLevelDesc) { try { switch (viewLevelDesc) { case "All": return 0; case "Office": return 10; case "Manager": return 50; default: throw new Exception("Invalid View Level Description"); } } catch (Exception eX) { throw new Exception("Action: GetViewLevel()" + Environment.NewLine + eX.Message); } } public static string GetViewLevelDescription(int viewLevel) { try { switch (viewLevel) { case 0: return "All"; case 10: return "Office"; case 50: return "Manager"; default: throw new Exception("Invalid View Level Description"); } } catch (Exception eX) { throw new Exception("Action: GetViewLevelDescription()" + Environment.NewLine + eX.Message); } } The two static Methods enable me to either get an int ViewLevel from a string ViewLevelDesc or vice versa. I'm sure the way I have done this is far more cumbersome than it needs to be, and I'm looking for some advice how to achieve the same objective but more concisely. The list of int / string pairs will increase significantly. The ones in the above code are just the first three I intend to use.

  Read the article

• Php header('Location") error

  - by Umeed

  I'm having some difficulty with my php coding. I have 3 files, add.php, lib.php, and view.php I created a simple form, and when the user clicks submit, it should direct them to the view.php where it will display the database. Now I'm having a couple issues I can't seem to resolve. when the user clicks submit and the fields are blank or there is an error no entry should be made into the view page (or database)...however when I click submit a blank entry is made into the database. ALSO if i click "enter product" from the top menu bar anytime I click it, it causes a blank entry into the database. I can't figure out why that's happening. My next issue is with the header('Location') and my browser says: "Warning: Cannot modify header information - headers already sent by (output started at lib.php:13) in add.php on line 16" However if I click submit on my form it goes away. Here is the code for the pages: http://ideone.com/Vvz8x I truly apologize if the code is really messy. Any help / advice / solution is greatly appreciated thank you. And yes this was an assignment---it was due last week but since I couldn't finish it, it's not worth any marks anymore.

  Read the article

• Proper way to reassign pointers in c++

  - by user272689

  I want to make sure i have these basic ideas correct before moving on (I am coming from a Java/Python background). I have been searching the net, but haven't found a concrete answer to this question yet. When you reassign a pointer to a new object, do you have to call delete on the old object first to avoid a memory leak? My intuition is telling me yes, but i want a concrete answer before moving on. For example, let say you had a class that stored a pointer to a string class MyClass { private: std::string *str; public: MyClass (const std::string &_str) { str=new std::string(_str); } void ChangeString(const std::string &_str) { // I am wondering if this is correct? delete str; str = new std::string(_str) /* * or could you simply do it like: * str = _str; */ } .... In the ChangeString method, which would be correct? I think i am getting hung up on if you dont use the new keyword for the second way, it will still compile and run like you expected. Does this just overwrite the data that this pointer points to? Or does it do something else? Any advice would be greatly appricated :D

  Read the article

• Manage the scrolling of just one element in a ScrollView

  - by morgan1189

  So, I have a ScrollView which has cards on it. ScrollView must be paging enabled. The goal is that the user must be able to scroll it, even if it has only one card. Since i am having the frame of ScrollView of exactly the same width and height as a picture of a card, i decided to increase the width of a ScrollView.contentSize and add one point to it. It turns out to be working fine, but it glitches a bit - when i drag the card to the left, and then grab it again it moves to right a little bit (i guess, for the value of that one point). If i increase the contentSize, the shift increases too (for example, if the content size is increased by ten, the shift value is ten points too). It really irritates me a lot and I want to get rid of it. Any advice on how to do that? Help is much appreciated. UPD: I tried to manually re-center the card in the scrollViewDidEndDecelerating but that didn't help. My guess for now is that the problem can be solved by setting the content offset to the right value (because now it's (0,0)), but I can't figure out how to do it.

  Read the article

• Reading a text file, and performing actions based on strings read

  - by user1691766

  Let me start off by saying that I really am quite new to C. So basically I have a text file (contains around 30 assembly instructions, separated by new lines), and I am successfully reading them into my program. From here I need to perform certain actions based off each instruction. I would assume the best way to do this would be via a switch-case statement. However I am encountering a lot of problems due to me trying to compare strings that are 33 characters long. Can anyone please offer me advice on what I am doing wrong, or offer an alternative? Thanks in advance. Here is what I have so far: char instruction[29][ 33 ]; int i,run; i = 0; run = 1; FILE *instPtr; /* LOADING INSTRUCTIONS FROM FILE INTO "instruction" ARRAY*/ if ( ( instPtr = fopen("MIPSinstructions.txt", "r") ) == NULL ) { printf("File could not be opened\n"); } // end if else { fscanf( instPtr, "%s", instruction[0]); printf("%s\n", instruction[0]); while (!feof( instPtr ) ){ i++; fscanf( instPtr, "%s", instruction[i]); printf("%s\n", instruction[i]); } fclose( instPtr ); i = 0; // Reset the counter } //end else return 0; }

  Read the article

• Async run for javascript by using listeners

  - by CharlieShi

  I have two functions, the names are Function3, Function4, Function3 will send request to server side to get jsondata by using ajax, which, however, will take about 3 seconds to complete. Function4 is a common function which will wait for Function3's result and then action. My code puts below: function ajaxRequest(container) { $.ajax({ url: "Home/GetResult", type: "post", success: function (data) { container.append(data.message); } }); } var eventable = { on: function (event, cb) { $(this).on(event, cb); }, trigger: function (event) { $(this).trigger(event); } } var Function3 = { run: function () { var self = this; setTimeout(function () { ajaxRequest($(".container1")); self.trigger('done'); }, 500); } } var Function4 = { run: function () { var self = this; setTimeout(function () { $(".container1").append("Function4 complete"); self.trigger('done'); },500); } } $.extend(Function3, eventable); $.extend(Function4, eventable); Function3.on('done', function (event) { Function4.run(); }); Function4.on('done', function () { $(".container1").append("All done"); }); Function3.run(); but now the problem is, when I start the code , it always show me the result as : first will appear "Function4 complete", then "All done" follows, 3 seconds later, "Function3 complete" will appear. That's out of my expection because my expection is "Function3 complete" comes first, "Function4 complete" comes second and "All done" is expected as the last one. Anyone can help me on this? thx in advice. EDIT: I have included all the functions above now. Also, you can check the js script in JSFIDDER: http://jsfiddle.net/sporto/FYBjc/light/ I have replaced the function in JSFIDDER from a common array push action to ajax request.

  Read the article

• Can a pc with a 1.2 ghz dual core run VS 2013? [on hold]

  - by moo2

  Edit: This question is about a tool used for programming, Microsoft Visual Studio 2013. I already read the minimum requirements for VS 2013 before I posted or I wouldn't have asked the question. I searched on the web for an answer for a few hours before posting. Why should I go out and spend $400 on a laptop if I can spend less than $100 and use it to learn how to program? In the context of the question it is clear I was not asking for advice on what laptop to buy and it was also clear I was not asking for someone to walk me through the system requirements of VS 2013. This is a vast community and I was wondering if someone in this vast community would have experience in dealing with my question. In other words has anyone ever tried anything like it? If I had an old computer sitting around I would have tested it. At the moment all I have is a friend's Chromebook I'm borrowing. End Edit. I know the requirements for Microsoft Visual Studio 2013 state 1.6 ghz processor. I'm looking at getting a laptop for school and I found one that is old but cheap and would work for college. The Dell D430 I'm looking at getting has a 1.2ghz Core 2 Duo CPU, 80GB HD, 2GB RAM, and Windows 7 Home Premium. It's refurbished. I can get it for less than most phone's cost and from a Microsoft Authorized Refurbisher. I know it's not a skyrim rig but it's lightweight and can handle being a college laptop and doing word processing. Would Visual Studio 2013 run at all? If it is slower I'm not concerned. I just want to know if it would work and compile my assignments and run them? I'd be using this laptop for doing assignments and learning programming languages not for coding the next social media sensation.

  Read the article

• Looping through array values using JQuery and show them on separate lines

  - by user3192948

  I'm building a simple shopping cart where visitors can select a few items they want, click on the "Next" button, and see the confirmation list of things they just selected. I would like to have the confirmation list shown on each line for each item selected. HTML selection <div id="c_b"> <input type="checkbox" value="razor brand new razor that everyone loves, price at $.99" checked> <input type="checkbox" value="soap used soap for a nice public shower, good for your homies, price at $.99" checked> <input type="checkbox" value="manpacks ultimate choice, all in 1, price at $99"> </div> <button type='button' id='confirm'>Next</button> HTML confirmation list <div id='confirmation_list' style='display:none;'> <h2>You have selected item 1</h2> <h2>Your have selected item 2 </h2> </div> JS $(function(){ $('#confirm').click(function(){ var val = []; $(':checkbox:checked').each(function(i){ val[i] = $(this).val(); }); }); }); I ultimately want to replace the words 'Your have selected item 2' in h2s with the values selected from each check box. With the code above I'm able to collect the values of each checkbox into an array val, but having difficulty looping through and displaying them. Any advice would be appreciated.

  Read the article

• Best (in your opinion) GIT workflow for case when releases are done on demand (in most cases 1-2 tickets at once)

  - by Robert

  I'm rather a Git newbie and I'm looking for your advice. In the company I work for we have a "workflow" where we have a single Git repo for our project with 2 branches: master and prod. All devs work on the master branch. If a ticket is done (from the dev perspective), we push to the repo. If all tests are passed, we make a release. The issue is that in most cases, the request from business guys sounds like: "please release ticket A or A && B". In most cases, I end up doing something like git checkout prod git cherry-pick --no-commit commit_hash git commit -m "blah blah to prod" -a As you can see this is not a perfect solution, and I'm under a huge impression this is a perfect way to nowhere especially when change A depends on changes B and C. Do you have any suggestions how to handle releases on demand if more devs works on the same branch and the flow looks like I described above? All suggestions are welcome. I cannot change business processes and it will have to stay as it is - unfortunately.

  Read the article

• 3Ware 9650SE RAID-6, two degraded drives, one ECC, rebuild stuck

  - by cswingle

  This morning I came in the office to discover that two of the drives on a RAID-6, 3ware 9650SE controller were marked as degraded and it was rebuilding the array. After getting to about 4%, it got ECC errors on a third drive (this may have happened when I attempted to access the filesystem on this RAID and got I/O errors from the controller). Now I'm in this state: > /c2/u1 show Unit UnitType Status %RCmpl %V/I/M Port Stripe Size(GB) ------------------------------------------------------------------------ u1 RAID-6 REBUILDING 4%(A) - - 64K 7450.5 u1-0 DISK OK - - p5 - 931.312 u1-1 DISK OK - - p2 - 931.312 u1-2 DISK OK - - p1 - 931.312 u1-3 DISK OK - - p4 - 931.312 u1-4 DISK OK - - p11 - 931.312 u1-5 DISK DEGRADED - - p6 - 931.312 u1-6 DISK OK - - p7 - 931.312 u1-7 DISK DEGRADED - - p3 - 931.312 u1-8 DISK WARNING - - p9 - 931.312 u1-9 DISK OK - - p10 - 931.312 u1/v0 Volume - - - - - 7450.5 Examining the SMART data on the three drives in question, the two that are DEGRADED are in good shape (PASSED without any Current_Pending_Sector or Offline_Uncorrectable errors), but the drive listed as WARNING has 24 uncorrectable sectors. And, the "rebuild" has been stuck at 4% for ten hours now. So: How do I get it to start actually rebuilding? This particular controller doesn't appear to support /c2/u1 resume rebuild, and the only rebuild command that appears to be an option is one that wants to know what disk to add (/c2/u1 start rebuild disk=<p:-p...> [ignoreECC] according to the help). I have two hot spares in the server, and I'm happy to engage them, but I don't understand what it would do with that information in the current state it's in. Can I pull out the drive that is demonstrably failing (the WARNING drive), when I have two DEGRADED drives in a RAID-6? It seems to me that the best scenario would be for me to pull the WARNING drive and tell it to use one of my hot spares in the rebuild. But won't I kill the thing by pulling a "good" drive in a RAID-6 with two DEGRADED drives? Finally, I've seen reference in other posts to a bad bug in this controller that causes good drives to be marked as bad and that upgrading the firmware may help. Is flashing the firmware a risky operation given the situation? Is it likely to help or hurt wrt the rebuilding-but-stuck-at-4% RAID? Am I experiencing this bug in action? Advice outside the spiritual would be much appreciated. Thanks.

  Read the article

• SMB2 traffic crashes network?

  - by Phil Cross

  We've been having significant network slowdown issues over the past few weeks, primarily on a Friday morning. We run Windows 7 client machines, with Windows Server 2008 R2 servers. What generally happens is the network starts to slow down massively at 08:55 and resumes normal speeds at around 09:20 This affects everything on the network from logging on, resetting passwords, opening programs and files etc. On my client machine, Physical Memory usage remains at around 40% (normal) and CPU usage hovers around 0-10% idle. The servers show memory usage spikes massively and remains quite intense during the times mentioned above. I have taken several wireshark captures, both during the slowdown and when the network operates fine. One of the main things I noticed is the increase in SMB2 entries in the wireshark log during the slowdown. Record Time Source Destination Protocol Length Info 382 3.976460000 10.47.35.11 10.47.32.3 SMB2 362 Create Request File: pcross\My Documents 413 4.525047000 10.47.35.11 10.47.32.3 SMB2 146 Close Request File: pcross\My Documents 441 5.235927000 10.47.32.3 10.47.35.11 SMB2 298 Create Response File: pcross\My Documents\Downloads 442 5.236199000 10.47.35.11 10.47.32.3 SMB2 260 Find Request File: pcross\My Documents\Downloads SMB2_FIND_ID_BOTH_DIRECTORY_INFO Pattern: *;Find Request File: pcross\My Documents\Downloads SMB2_FIND_ID_BOTH_DIRECTORY_INFO Pattern: * 573 6.327634000 10.47.35.11 10.47.32.3 SMB2 146 Close Request File: pcross\My Documents\Downloads 703 7.664186000 10.47.35.11 10.47.32.3 SMB2 394 Create Request File: pcross\My Documents\Downloads\WestlandsProspectus\P24 __ P21.pdf These are some of the SMB2 records from a list of a couple of hundred which original from my computer with a destination of the fileserver. One of the interesting things to note is the last entry in the examples above is for a PDF file. That file was not open anywhere on my computer, or on anyone elses. No folders with the files in were open either. When I took another capture when the network was running fine, there were hardly any SMB2 entries, and the ones that were displayed were mainly from Wireshark. We currently have around 800 computers, 90 Macs and 200 Laptops and Netbooks. Our concern is if this traffic is happening on my computer, is it happening on other computers, and if so, would those computers be adding to the slow network issues? Again, this only happens during certain times. We're pretty sure its not the our antivirus. Is there anything to narrow down whats initializing this SMB traffic during the particular times? Or if anyone has any extra advice, or links to resources it would be appreciate.

  Read the article

• Fedora 12 Wireless problems (Intel Wireless 4965AGN Card)

  - by Ninefingers

  Hi All, I'm having an interesting experience with my wireless card at the moment. Basically, it does like this: I connect to the local wireless network (netgear router) It works, briefly, allowing me to browse a webpage or maybe two, if I'm lucky. It then stops working / sending any packets, whilst reported still connected. Now, me being me I've had a look to see what I can find. wpa_supplicant.log looks like this: Trying to associate with valid_mac:a2:30 (SSID='vennardwireless' freq=2462 MHz) Associated with valid_mac:a2:30 WPA: Key negotiation completed with valid_mac:a2:30 [PTK=CCMP GTK=TKIP] CTRL-EVENT-CONNECTED - Connection to valid_mac:a2:30 completed (reauth) [id=0 id_str=] CTRL-EVENT-DISCONNECTED - Disconnect event - remove keys So that's working fine. dmesg | grep "*iwl*" spits out this: iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, 1.3.27kds iwlagn: Copyright(c) 2003-2009 Intel Corporation iwlagn 0000:03:00.0: PCI INT A -> GSI 17 (level, low) -> IRQ 17 iwlagn 0000:03:00.0: setting latency timer to 64 iwlagn 0000:03:00.0: Detected Intel Wireless WiFi Link 4965AGN REV=0x4 iwlagn 0000:03:00.0: Tunable channels: 13 802.11bg, 19 802.11a channels iwlagn 0000:03:00.0: irq 32 for MSI/MSI-X phy0: Selected rate control algorithm 'iwl-agn-rs' iwlagn 0000:03:00.0: firmware: requesting iwlwifi-4965-2.ucode iwlagn 0000:03:00.0: loaded firmware version 228.61.2.24 Registered led device: iwl-phy0::radio Registered led device: iwl-phy0::assoc Registered led device: iwl-phy0::RX Registered led device: iwl-phy0::TX iwlagn 0000:03:00.0: iwl_tx_agg_start on ra = 00:24:b2:32:a3:30 tid = 0 iwlagn 0000:03:00.0: iwl_tx_agg_start on ra = 00:24:b2:32:a3:30 tid = 0 So that's working too. I can also ping 192.168.0.1 -I wlan0 and arping 192.168.0.1 -I wlan0 the router until the network falls over. uname -r:2.6.32.10-90.fc12.x86_64. Laptop is a Core2 Duo (2Ghz) with 3GB RAM. Other symptoms I've noticed are that wireshark freezes when I capture on the "broken" interface until I disconnect. Am using networkmanager as per normal. Stupidly, I can connect to the same router via eth0/a cat6 cable just fine. Everyone else can connect to the AP fine (from Windows). Yes, I'm sat right next to it and not trying to access a hotspot the other side of the world. Any ideas? Is this a broken update? (I intend to reboot and test an older kernel later)? Anyone else come across this? Edit: iwconfig wlan0 rate auto is the settings I'm using for rates. Also, according to networkmanager the network is still connected. Thanks for any pointers / advice.

  Read the article

• netsh wlan add profile not importing encrypted passphrase

  - by sirlancelot

  I exported a wireless network connection profile from a Windows 7 machine correctly connected to a WiFi network with a WPA-TKIP passphrase. The exported xml file shows the correct settings and a keyMaterial node which I can only guess is the encrypted passphrase. When I take the xml to another Windows 7 computer and import it using netsh wlan add profile filename="WiFi.xml", it correctly adds the profile's SSID and encryption type, but a balloon pops up saying that I need to enter the passphrase. Is there a way to import the passphrase along with all other settings or am I missing something about adding profiles? Here is the exported xml with personal information removed: <?xml version="1.0"?> <WLANProfile xmlns="http://www.microsoft.com/networking/WLAN/profile/v1"> <name>[removed]</name> <SSIDConfig> <SSID> <hex>[removed]</hex> <name>[removed]</name> </SSID> <nonBroadcast>false</nonBroadcast> </SSIDConfig> <connectionType>ESS</connectionType> <connectionMode>auto</connectionMode> <autoSwitch>false</autoSwitch> <MSM> <security> <authEncryption> <authentication>WPAPSK</authentication> <encryption>TKIP</encryption> <useOneX>false</useOneX> </authEncryption> <sharedKey> <keyType>passPhrase</keyType> <protected>true</protected> <keyMaterial>[removed]</keyMaterial> </sharedKey> </security> </MSM> </WLANProfile> Any help or advice is appreciated. Thanks. Update: It seems if I export the settings using key=clear, the passphrase is stored in the file unprotected and I can import the file on another computer without issue. I've updated my question to reflect my findings.

  Read the article

• Windows 7 extremely slow login, exchange performance, printer enumeration, etc...

  - by Jeff

  Background: I have a fresh copy of Windows 7 Professional x64 on a Dell Latitude E6500. The laptop has 8GB RAM, 250GB drive, and all Intel peripherals (net/wifi/graphics). All available Windows updates, as well as hardware drivers are installed. The IT folks where I work joined the computer to our Windows 2003-based Active Directory domain. There are no errors in any logs that we've looked at, and Group Policy templates appear to have applied properly. Problem: Every time I turn on or reboot the computer, it takes between 2 to 10 (all times are actual) minutes after successfully typing my username/password to get to my desktop. My login script does not always run. Sometimes I get a black screen, and a couple of minutes later the login script will pop up and take up to 10 minutes to complete. I can get around this by hitting cntrl-shift-esc and running explorer.exe from the Task Manager. The login script continues to hang, but I can minimize it and go on about my business. Either way, it generally throws errors prior to completing. I often get slow or failed connectivity to Exchange via Outlook. When I bring up printer dialogs, they take several minutes to populate, and block the calling app while doing so. Copies to SMB shares are very slow. On my home network, everything works fine. On both the work network and home network, I can use remote internet resources just fine. Web pages pull up, remote VPN's are fine, I can max out bandwidth on SpeakEasy Speed Test. I can get almost max bandwidth transferring FTP/HTTP over a LAN. Another symptom of the problem is that when I first log in, the work network shows as "Identifying" for a long time in the Network and Sharing Center, and will often then change to the name of the work domain, but say "Unauthenticated Network". Note that this computer previously ran Windows Vista with none of these problems. Attempts to Fix: Installed the Win7 admin pack Uninstalled/reinstalled all hardware drivers Verified Active Directory DNS settings (Vista works relatively well on the same network) Reset all TCP/IP settings on all adapters using the netsh commands to do so Disabled ipv6 on all adapters Disable wifi adapter while on work network Locked the network card to 100/Full, 1000/Full; also tried Auto Added various important addresses to hosts file (exchange, dns, ad) -- removed when didn't help My background is a jpeg (sounds unrelated but there is apparently a win7 login bug related to solid color background) More I have forgotten The IT staff at my company indicated they believe this is due to having Windows 2003 AD servers and not having any Windows 2008 R2 AD servers. Other than that, they have no advice or assistance to offer other than a rebuild (already tried that once with similar symptoms), or downgrade to Vista. Any thoughts out there?

  Read the article

• networking through openstack installed on vm

  - by Mandar Katdare

  I am trying to set up a test installation of Openstack on a Ubuntu 12.04 VM running on a ESXi server. So far I have been able to launch the VMs on the ESXi, however am unable to assign IP addresses to them. As the VM with the Openstack installation has a single public IP, I wish to assign IPs to the VMs create through Openstack so that they can directly interact with the public network itself without having a separate private network. So I feel that bridging would not be the correct option here. But am unable to find the correct documents to go ahead with such an install. My ifconfig looks as follows: eth0 Link encap:Ethernet HWaddr 00:0c:29:6f:8a:d7 inet addr:192.168.4.167 Bcast:192.168.4.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:fe6f:8ad7/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:391640 errors:33 dropped:98 overruns:0 frame:0 TX packets:545044 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:40303931 (40.3 MB) TX bytes:763127348 (763.1 MB) Interrupt:18 Base address:0x2000 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:146127 errors:0 dropped:0 overruns:0 frame:0 TX packets:146127 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:799815763 (799.8 MB) TX bytes:799815763 (799.8 MB) virbr0 Link encap:Ethernet HWaddr 8a:80:33:32:63:a0 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) The eth0 is the adapter that I intend to use for all communication. My nova.conf looks as follows: --dhcpbridge_flagfile=/etc/nova/nova.conf --dhcpbridge=/usr/bin/nova-dhcpbridge --logdir=/var/log/nova --state_path=/var/lib/nova --lock_path=/var/lock/nova --allow_admin_api=true --use_deprecated_auth=false --auth_strategy=keystone --scheduler_driver=nova.scheduler.simple.SimpleScheduler --s3_host=192.168.4.167 --ec2_host=192.168.4.167 --rabbit_host=192.168.4.167 --cc_host=192.168.4.167 --nova_url=http://192.168.4.167:8774/v1.1/ --routing_source_ip=192.168.4.167 --glance_api_servers=192.168.4.167:9292 --image_service=nova.image.glance.GlanceImageService --iscsi_ip_prefix=192.168.4 --sql_connection=mysql://novadbadmin:[email protected]/nova --ec2_url=http://192.168.4.167:8773/services/Cloud --keystone_ec2_url=http://192.168.4.167:5000/v2.0/ec2tokens --api_paste_config=/etc/nova/api-paste.ini --libvirt_type=kvm --libvirt_use_virtio_for_bridges=true --start_guests_on_host_boot=true --resume_guests_state_on_host_boot=true --vnc_enabled=true --vncproxy_url=http://192.168.4.167:6080 --vnc_console_proxy_url=http://192.168.4.167:6080 # network specific settings --network_manager=nova.network.manager.FlatDHCPManager --public_interface=eth0 --vmwareapi_host_ip=192.168.4.254 --vmwareapi_host_username=**** --vmwareapi_host_password=**** --vmwareapi_wsdl_loc=http://127.0.0.1:8080/wsdl/vim25/vimService.wsdl --fixed_range=192.168.4.190/24 --floating_range=192.168.4.190/24 --network_size=32 --flat_network_dhcp_start=192.168.4.190 --flat_injected=False --force_dhcp_release --iscsi_helper=tgtadm --connection_type=vmwareapi --root_helper=sudo nova-rootwrap --verbose --libvirt_use_virtio_for_bridges --ec2_private_dns_show --novnc_enabled=true --novncproxy_base_url=http://192.168.4.167:6080/vnc_auto.html --vncserver_proxyclient_address=192.168.4.167 --vncserver_listen=192.168.4.167 192.168.4.167 is my VM with the Openstack installation and 192.168.4.254 is my ESXi server on which the VM runs. Can anyone advice me about how to proceed? Thanks, Mandar

  Read the article

• Mail troubleshooting

  - by Jason Swett

  I'm just trying to send myself an e-mail. On on Ubuntu using sendmail. For some reason, it doesn't work. Here's the command I'm running and what shows up when I run it: jason@ve:~$ echo "Subject: test" | /usr/lib/sendmail -v [email protected] [email protected]... Connecting to [127.0.0.1] via relay... 220 ve.5wrvhfxg.vesrv.com ESMTP Sendmail 8.14.3/8.14.3/Debian-9.1ubuntu1; Wed, 29 Dec 2010 13:51:49 -0800; (No UCE/UBE) logging access from: localhost.localdomain(OK)-localhost.localdomain [127.0.0.1] >>> EHLO ve.5wrvhfxg.vesrv.com 250-ve.5wrvhfxg.vesrv.com Hello localhost.localdomain [127.0.0.1], pleased to meet you 250-ENHANCEDSTATUSCODES 250-PIPELINING 250-EXPN 250-VERB 250-8BITMIME 250-SIZE 250-DSN 250-ETRN 250-DELIVERBY 250 HELP >>> VERB 250 2.0.0 Verbose mode >>> MAIL From:<[email protected]> SIZE=14 250 2.1.0 <[email protected]>... Sender ok >>> RCPT To:<[email protected]> >>> DATA 250 2.1.5 <[email protected]>... Recipient ok 354 Enter mail, end with "." on a line by itself >>> . 050 <[email protected]>... Connecting to 205.186.165.157. via esmtp... 050 <[email protected]>... Deferred: Connection refused by 205.186.165.157. 250 2.0.0 oBTLpnEj012261 Message accepted for delivery [email protected]... Sent (oBTLpnEj012261 Message accepted for delivery) Closing connection to [127.0.0.1] >>> QUIT 221 2.0.0 ve.5wrvhfxg.vesrv.com closing connection It seems to me that the "Connection refused by 205.186.165.157" part is where things are going wrong, but I have no idea where or how to begin troubleshooting. Any advice?

  Read the article

• Monitoring slow nginx/unicorn requests

  - by injekt

  I'm currently using Nginx to proxy requests to a Unicorn server running a Sinatra application. The application only has a couple of routes defined, those of which make fairly simple (non costly) queries to a PostgreSQL database, and finally return data in JSON format, these services are being monitored by God. I'm currently experiencing extremely slow response times from this application server. I have another two Unicorn servers being proxied via Nginx, and these are responding perfectly fine, so I think I can rule out any wrong doing from Nginx. Here is my God configuration: # God configuration APP_ROOT = File.expand_path '../', File.dirname(__FILE__) God.watch do |w| w.name = "app_name" w.interval = 30.seconds # default w.start = "cd #{APP_ROOT} && unicorn -c #{APP_ROOT}/config/unicorn.rb -D" # -QUIT = graceful shutdown, waits for workers to finish their current request before finishing w.stop = "kill -QUIT `cat #{APP_ROOT}/tmp/unicorn.pid`" w.restart = "kill -USR2 `cat #{APP_ROOT}/tmp/unicorn.pid`" w.start_grace = 10.seconds w.restart_grace = 10.seconds w.pid_file = "#{APP_ROOT}/tmp/unicorn.pid" # User under which to run the process w.uid = 'web' w.gid = 'web' # Cleanup the pid file (this is needed for processes running as a daemon) w.behavior(:clean_pid_file) # Conditions under which to start the process w.start_if do |start| start.condition(:process_running) do |c| c.interval = 5.seconds c.running = false end end # Conditions under which to restart the process w.restart_if do |restart| restart.condition(:memory_usage) do |c| c.above = 150.megabytes c.times = [3, 5] # 3 out of 5 intervals end restart.condition(:cpu_usage) do |c| c.above = 50.percent c.times = 5 end end w.lifecycle do |on| on.condition(:flapping) do |c| c.to_state = [:start, :restart] c.times = 5 c.within = 5.minute c.transition = :unmonitored c.retry_in = 10.minutes c.retry_times = 5 c.retry_within = 2.hours end end end Here is my Unicorn configuration: # Unicorn configuration file APP_ROOT = File.expand_path '../', File.dirname(__FILE__) worker_processes 8 preload_app true pid "#{APP_ROOT}/tmp/unicorn.pid" listen 8001 stderr_path "#{APP_ROOT}/log/unicorn.stderr.log" stdout_path "#{APP_ROOT}/log/unicorn.stdout.log" before_fork do |server, worker| old_pid = "#{APP_ROOT}/tmp/unicorn.pid.oldbin" if File.exists?(old_pid) && server.pid != old_pid begin Process.kill("QUIT", File.read(old_pid).to_i) rescue Errno::ENOENT, Errno::ESRCH # someone else did our job for us end end end I have checked God status logs but it appears CPU and Memory Usage are never out of bounds. I also have something to kill high memory workers, which can be found on the GitHub blog page here. When running a tail -f on the Unicorn logs I see some requests, but they're far and few between, when I was at around 60-100 a second before this trouble seemed to have arrived. This log also shows workers being reaped and started as expected. So my question is, how would I go about debugging this? What are the next steps I should be taking? I'm extremely baffled that the server will sometimes respond quickly, but at others time it's very slow, for long periods of time (which may or may not be peak traffic times). Any advice is much appreciated.

  Read the article

• How to transition to Comcast with static IP address

  - by steveha

  I have my own email server in my house, on a static IP address. I have had business DSL for over a decade, but I also now have Comcast business Internet. I want to transition from the DSL to the Comcast, and I have some questions. I have a domain name, my own mail server, and a firewall (a PC with two network interfaces, running Devil-Linux). I need to make sure I understand how to set up the Comcast cable box, and how to set up my firewall. First, do I need to change any settings in the cable box? Currently I have only used the cable box by plugging in a laptop, with the laptop doing DHCP. I think I can leave the box alone but I would like to make sure. Second, I'm not sure I understand the instructions Comcast gave me for setting up the firewall. My DSL provider gave me the following information: static IP address, net mask, gateway, and two DNS servers. Comcast gave me: static IP address, routable static IP address, net mask, and two DNS servers, and told me to put the "static IP address" as the "gateway" on the firewall. Is this just Comcast-speak here? Does "routable static IP address" mean the same thing as "static IP address" in my DSL setup, the end-point address that I should publish in the DNS MX records for my email server? Or should I publish the "static IP address", and Comcast will then route all its traffic over the cable box? My plan is: first, I'm going to configure another firewall, so I have one firewall for the DSL and one for the Comcast (rather than madly editing settings to switch back and forth). Then I will publish the new Comcast static IP address as a backup email server address in the DNS MX records, wait a while to let it propagate, and then switch my home over from the DSL to the Comcast. Then I'll change DNS to make that the primary mail address and the DSL the secondary, let that go a while and make sure it seems reliable. Then I'll remove the DSL from the DNS MX records completely, and finally shut down the DSL service. (I thought about keeping the DSL as a backup, but the reason I'm leaving DSL is that it has become unreliable; and I have heard that Comcast business Internet is reliable.) Final question, any advice for me? Anything you think might be useful, helpful, or educational. Thanks.

  Read the article

• Windows explorer locks files

  - by John Prince

  I'm using Office 2010 & Windows 7 Home Premium 64-bit. My problem starts when I attempt to save e-mail messages to my PC that I have received via Outlook (my ISP is Comcast). I'm using the default .msg file extension option when I attempt to save these e-mails. The resultant files are locked and do not show the normal "envelope" icon. Instead, it’s a “blank page” icon with the right upper corner folded in. These files refuse to open either by double clicking on them or right clicking and trying to open them with Outlook. And when I return to Outlook, I discover that Outlook is now hung up and I have to close it via the Task Manager. To make matters worse, I’ve also discovered that every e-mail message that I've saved on my PC over the years has also somehow become locked and their original "envelope" icon has been replaced with the "blank page" icon. I found and installed an application called LockHunter. As a result, when I right click on a saved and locked e-mail message, I’ve given an option to find out what's locking it. Each time I'm told that the culprit is Windows explorer.exe. When I unlock the file the normal envelope icon is sometimes displayed (but not always) but at least the file can then be opened. But the file is still “squirrely” as it can’t be moved or saved to a folder until it’s unlocked again. On this second attempt, LockHunter says it’s now locked by Outlook.exe. By the way, I don't have this issue when I save Word, Excel & PowerPoint files; only with Outlook. I've exhausted every remedy that I can think of including: making sure that the file and folder options are checked to always show icons and not thumbnails; running the Windows 7 & Office 2010 repair options which find nothing amiss; running a complete system scan with Windows Malicious Software Removal Tool with negative results; verifying that Outlook is the default for opening e-mails; updating all of my applications via Secunia Personal Software Inspector; uninstalling every application that I felt was unnecessary; doing a registry cleanup via CC Cleaner; having Windows Security Essentials always on (it did find one Java Trojan recently which was quarantined and then deleted); uninstalling a bunch of non-Microsoft shell extensions; and deactivating all of the Outlook Add-ins and then re-activating each one. None of this solves the problem. I’d welcome any advice on how to resolve this.

  Read the article

• Apache taking up too much CPU

  - by andrewtweber

  I'm trying to manage a server on Amazon for a network of sites that receives about 100 million pageviews per month. Unfortunately, nobody out of my team of 5 developers has much server admin experience. Right now we have the MaxClients set to 1400. Currently our traffic is about average, and we have 1150 total Apache processes running, which use about 2% CPU each! Out of those 1150, 800 of them are currently sleeping, but still taking up CPU. I'm sure there are ways to optimize this. I have a few thoughts: It appears Apache is creating a new process for every single connection. Is this normal? Is there a way to more quickly kill the sleeping processes? Should we turn KeepAlive on? Each page loads about 15-20 medium-sized graphics and a lot of javascript/css. So, here's our Apache setup. We do plan on contracting a server admin asap, but I would really appreciate some advice until we can find someone. Timeout 25 KeepAlive Off MaxKeepAliveRequests 200 KeepAliveTimeout 5 <IfModule prefork.c> StartServers 100 MinSpareServers 20 MaxSpareServers 50 ServerLimit 1400 MaxClients 1400 MaxRequestsPerChild 5000 </IfModule> <IfModule worker.c> StartServers 4 MaxClients 400 MinSpareThreads 25 MaxSpareThreads 75 ThreadsPerChild 25 MaxRequestsPerChild 0 </IfModule> Full top output: top - 23:44:36 up 1 day, 6:43, 4 users, load average: 379.14, 379.17, 377.22 Tasks: 1153 total, 379 running, 774 sleeping, 0 stopped, 0 zombie Cpu(s): 71.9%us, 26.2%sy, 0.0%ni, 0.0%id, 0.0%wa, 0.0%hi, 1.9%si, 0.0%st Mem: 70343000k total, 23768448k used, 46574552k free, 527376k buffers Swap: 0k total, 0k used, 0k free, 10054596k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 1756 mysql 20 0 10.2g 1.8g 5256 S 19.8 2.7 904:41.13 mysqld 21515 apache 20 0 396m 18m 4512 R 2.1 0.0 0:34.42 httpd 21524 apache 20 0 396m 18m 4032 R 2.1 0.0 0:32.63 httpd 21544 apache 20 0 394m 16m 4084 R 2.1 0.0 0:36.38 httpd 21643 apache 20 0 396m 18m 4360 R 2.1 0.0 0:34.20 httpd 21817 apache 20 0 396m 17m 4064 R 2.1 0.0 0:38.22 httpd 22134 apache 20 0 395m 17m 4584 R 2.1 0.0 0:35.62 httpd 22211 apache 20 0 397m 18m 4104 R 2.1 0.0 0:29.91 httpd 22267 apache 20 0 396m 18m 4636 R 2.1 0.0 0:35.29 httpd 22334 apache 20 0 397m 18m 4096 R 2.1 0.0 0:34.86 httpd 22549 apache 20 0 395m 17m 4056 R 2.1 0.0 0:31.01 httpd 22612 apache 20 0 397m 19m 4152 R 2.1 0.0 0:34.34 httpd 22721 apache 20 0 396m 18m 4060 R 2.1 0.0 0:32.76 httpd 22932 apache 20 0 396m 17m 4020 R 2.1 0.0 0:37.34 httpd 22933 apache 20 0 396m 18m 4060 R 2.1 0.0 0:34.77 httpd 22949 apache 20 0 396m 18m 4060 R 2.1 0.0 0:34.61 httpd 22956 apache 20 0 402m 24m 4072 R 2.1 0.0 0:41.45 httpd

  Read the article

• DSL Modem with Wireless Router

  - by David

  I have a D-Link WBR-1310 wireless router and a TP-Link TD-8616 DSL modem. My old DSL modem died recently and I got the TP-Link as a replacement. With my old DSL modem, I plugged it into the WAN port on my D-Link and I could reach the internet through wireless and through the network. However, when I plugged the new TP-Link into the WAN port, I was not able to get any internet connectivity (either on the network ports or through wireless). So I plugged my labtop directly into the TP-Link DSL modem and I was able to get internet connectivity. I'm trying to figure out why my labtop can see the internet connection, but not the D-Link router. I think that the problem is due to the IP networking. My D-Link was originally set to have IP address 192.168.1.1. According to the documentation for the TP-Link DSL modem, it uses 192.168.1.1 as its IP address. I do not believe that my old DSL modem had an IP address. I logged into my D-Link router and changed its IP address to 192.168.1.2 and restarted it. Unfortunately, I still could not see the internet from my wireless devices. I've read a few forum postings which implied that I needed to setup a "bridge" between the two networks. Does that sound correct? Why didn't my old DSL modem require a bridge? I read pg. 12-13 of my D-Link's manual and they suggest that I need to disable UPnP, DHCP, and then plug the DSL modem into one of the LAN ports on my router. I'm concerned about doing this since I don't think that the firewall will work if I plug my DSL modem into one of the LAN ports. I also have a home NAS on my network and I wouldn't want that to be available over the internet. Does anyone have any advice about how I can get my TPLink DSL modem to work with my D-Link router? Thanks!

  Read the article

< Previous Page | 236 237 238 239 240 241 242 243 244 245 246 247  | Next Page >