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• Recommended learning path?

  - by stairmast0r

  First, my current standing: I know C++ at an.. advanced beginner level? I've gone through a book, I know the syntax well enough, I know a fair amount of standard library functions, and I've programmed some simple console stuff with it. I'd probably be able to program more with it if I knew how to structure a program, but I just can't seem to wrap my head around the whole concept of structuring something remotely complex. I've messed around with Java for a day or two, and the syntax was extremely easy to get the hang of, except that I didn't really know any functions. I'm plenty willing to learn, and to work hard to do so, but I don't really know where to go from here. Now, at the risk of sounding cliche, what I'd like to become is someone like the great three of id; Carmack, Romero, and Abrash. To be considered a genius. I believe anything can be learned, and nothing mentally limits anyone except lack of desire to learn. But I don't know how to learn this. They learned by doing, and making do with what resources they had. On the other hand, I have access to almost any books I want, access to the internet, and access to a more than capable computer and software. Should I learn more languages? Assembly? LISP? BASIC? Haskell? Should I dive straight into advanced topics like OpenGL? Or should I wait until I feel I've come closer to mastering the simpler things, like console programs, first? Should I follow tutorials? Should I follow books? Should I just dive into writing something and follow a reference manual as I go? What order should I do all this in? How should I do it? I want to completely master this; to be considered a genius. The most perfect career I can imagine is to start the next id. I have the drive to do it, I just don't know where to begin...

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• Protobuf design patterns

  - by Monster Truck

  I am evaluating Google Protocol Buffers for a Java based service (but am expecting language agnostic patterns). I have two questions: The first is a broad general question: What patterns are we seeing people use? Said patterns being related to class organization (e.g., messages per .proto file, packaging, and distribution) and message definition (e.g., repeated fields vs. repeated encapsulated fields*) etc. There is very little information of this sort on the Google Protobuf Help pages and public blogs while there is a ton of information for established protocols such as XML. I also have specific questions over the following two different patterns: Represent messages in .proto files, package them as a separate jar, and ship it to target consumers of the service --which is basically the default approach I guess. Do the same but also include hand crafted wrappers (not sub-classes!) around each message that implement a contract supporting at least these two methods (T is the wrapper class, V is the message class (using generics but simplified syntax for brevity): public V toProtobufMessage() { V.Builder builder = V.newBuilder(); for (Item item : getItemList()) { builder.addItem(item); } return builder.setAmountPayable(getAmountPayable()). setShippingAddress(getShippingAddress()). build(); } public static T fromProtobufMessage(V message_) { return new T(message_.getShippingAddress(), message_.getItemList(), message_.getAmountPayable()); } One advantage I see with (2) is that I can hide away the complexities introduced by V.newBuilder().addField().build() and add some meaningful methods such as isOpenForTrade() or isAddressInFreeDeliveryZone() etc. in my wrappers. The second advantage I see with (2) is that my clients deal with immutable objects (something I can enforce in the wrapper class). One disadvantage I see with (2) is that I duplicate code and have to sync up my wrapper classes with .proto files. Does anyone have better techniques or further critiques on any of the two approaches? *By encapsulating a repeated field I mean messages such as this one: message ItemList { repeated item = 1; } message CustomerInvoice { required ShippingAddress address = 1; required ItemList = 2; required double amountPayable = 3; } instead of messages such as this one: message CustomerInvoice { required ShippingAddress address = 1; repeated Item item = 2; required double amountPayable = 3; } I like the latter but am happy to hear arguments against it.

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• squid and ftp connections

  - by Kstro21

  i have a squid proxy server for both, http and ftp connections, i'm trying to use filezilla to open a ftp, but it always fail with an error saying: Status: Connection with proxy established, performing handshake... Response: Proxy reply: HTTP/1.0 403 Forbidden Error: Proxy handshake failed: ECONNRESET - Connection reset by peer Error: Connection timed out Error: Failed to retrieve directory listing i sniff the traffic, and, filezilla is trying to connect to a different port and the proxy denied it look, this is a portion of the sniff result CONNECT 201.150.36.227:61179 HTTP/1.1 Host: 201.150.36.227:61179 User-Agent: FileZilla everytime is a different port, so, no way i can allow it in the squid, also, i set the filezilla to use a active connection, same result, passive connection, same result again, so, i'm out of bullets, and i need your help, maybe a setting in the filezilla or in the squid can do the job, so, give a hand here this is the full log of the filezilla Status: Connecting to uhma.mx through proxy Status: Connecting to 172.19.216.13:3128... Status: Connection with proxy established, performing handshake... Response: Proxy reply: HTTP/1.0 200 Connection established Status: Connection established, waiting for welcome message... Response: 220 ProFTPD 1.3.3a Server (a3 FTP CUATRO) [201.150.36.227] Command: USER uhmamx Response: 331 Password required for uhmamx Command: PASS ******* Response: 230 User uhmamx logged in Status: Connected Status: Retrieving directory listing... Command: PWD Response: 257 "/" is the current directory Command: TYPE I Response: 200 Type set to I Command: PASV Response: 227 Entering Passive Mode (201,150,36,227,238,251). Command: MLSD Status: Connecting to 172.19.216.13:3128... Status: Connection with proxy established, performing handshake... Response: Proxy reply: HTTP/1.0 403 Forbidden Error: Proxy handshake failed: ECONNRESET - Connection reset by peer Error: Connection timed out Error: Failed to retrieve directory listing

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• Outlook 2007 unable to connect to exchange server

  - by mattwarren

  I came into the office a week ago and outlook has refused to connect ever since, it just says "Disconnected" in the bottom right-hand corner. I've tried restarting it, rebooting Windows etc. I'm the only one if our office who is having this problem, so it's not a general problem with the server. Things I've tried Pinging the server via IP address and host name, both work fine Connecting via OWA, this works using the same machine name Connecting to Exchange via HTTP ("Outlook Anywhere") doesn't work None of the suggestions in this question helped, http://serverfault.com/questions/21755/can-ping-exchange-server-cant-connect-outlook-to-it Disabling Windows firewall on my laptop also has no effect. There are no items in the event viewer that indicate that anything it up. Also no permissions have changed on the server since when it worked. Update: I've just tried logging onto a completely different PC, using my domain controller user-name/password. When I setup outlook on there it also fails, so the problem isn't specific to 1 pc/outlook it's something about my particular user name, but not when using OWA? What else can I do to diagnose this, any suggestions?

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• How do I install and use the cli53 tools on Windows?

  - by pavlos

  I'm trying to find the simplest way to import a large number of BIND zone files in to Route 53. I've had a quick look at the AWS CLI and AWS Tools for Windows PowerShell but they don't seem to include a zone file import option like the AWS Route53 GUI does. The cli53 utility on the other hand does, but is written in Python and appears to have a series of pre-requisites to get going which I'm having troubles working out for Windows. I can find plenty of examples of setting it up under Linux but only one reference to a PowerShell example here, but it doesn't explain how to install cli53 in the first place. The other option I'm exploring is to use the BIND to Amazon Route 53 Conversion Tool perl script to first convert the zone files to the Route53 CreateHostedZoneRequest XML format and then use the AWS New-R53HostedZone PowerShell cmdlet to import the zones. After the zones have been imported I'll be looking at running a script to validate what has been created in Route53 matches with the existing nameserver prior to updating each domains nameserver records - I was planning on whipping something up using the new PS4.0 Resolve-DnsName cmdlet, but let me know if you have any better suggestions. Any assistance would be greatly appreciated - thanks. (By the way, I had more reference links in my post but ServerFault won't allow me to post more than 2 links being a new member; and for this same reason I also can't comment on Vasili's example in the other linked thread)

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• Timer_EntityBody, Timer_ConnectionIdle and Connection Closed Unexpectly

  - by ihsany

  We have a windows application, it connects to a web service (XML web service hosted on a Windows 2008 Server IIS 7.5, no antivirus) and fetches some data to the client. But sometimes (around 5%-10% of the requests), it gives an error when trying to connect web service. Here is the client application error log; Exception:System.Net.WebException: The underlying connection was closed: The connection was closed unexpectedly. at System.Web.Services.Protocols.WebClientAsyncResult.WaitForResponse() at System.Web.Services.Protocols.WebClientProtocol.EndSend(IAsyncResult asyncResult, Object& internalAsyncState, Stream& responseStream) at System.Web.Services.Protocols.SoapHttpClientProtocol.EndInvoke(IAsyncResult asyncResult) at APPClient.APPFPService.WEBService.EndAddMoney(IAsyncResult asyncResult) at APPClient.BLL.ServiceAgent.AddMoneyCallback(IAsyncResult ar) From other hand, on the web server, i checked HTTP error logs and i see a long file like this; 2014-06-05 14:02:04 65.82.178.73 53798 SERVER.IP.ADDRESS 80 - - - - - Timer_ConnectionIdle - 2014-06-05 14:07:24 76.109.81.223 58985 SERVER.IP.ADDRESS 80 - - - - - Timer_ConnectionIdle - 2014-06-05 14:07:39 76.109.81.223 2803 SERVER.IP.ADDRESS 80 - - - - - Timer_ConnectionIdle - 2014-06-05 14:08:59 76.109.81.223 52656 SERVER.IP.ADDRESS 80 - - - - - Timer_ConnectionIdle - 2014-06-05 14:09:05 65.82.178.73 53904 SERVER.IP.ADDRESS 80 HTTP/1.1 POST /webservice/webservice.asmx - 2 Timer_EntityBody SYPService 2014-06-05 14:10:55 50.186.180.191 50648 SERVER.IP.ADDRESS 80 - - - - - Timer_ConnectionIdle - Here is a similar situation but it did not help me. UPDATE: When i checked the IIS logs, i see some issues like these; cs-method cs-uri-stem sc-status sc-win32-status time-taken cs-version POST /webservice/webservice.asmx 400 64 46 HTTP/1.1 POST /webservice/webservice.asmx 400 64 134675 HTTP/1.1 POST /webservice/webservice.asmx 400 64 37549 HTTP/1.1 POST /webservice/webservice.asmx 400 64 109 HTTP/1.1 POST /webservice/webservice.asmx 400 64 31 HTTP/1.1 POST /webservice/webservice.asmx 400 64 0 HTTP/1.1 POST /webservice/webservice.asmx 400 64 15 HTTP/1.1 sc-win32-status 64 : The specified network name is no longer available. sc-status 400 : Bad request Also some requests takes around 130 seconds, but some of less than 1 second. This is a windows application which connects to a web service for process some data. There is not a query takes around 130 seconds on the database.

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• How to avoid lftp Certificate verification error?

  - by pattulus

  I'm trying to get my Pelican blog working. It uses lftp to transfer the actual blog to ones server, but I always get an error: mirror: Fatal error: Certificate verification: subjectAltName does not match ‘blogname.com’ I think lftp is checking the SSL and the quick setup of Pelican just forgot to include that I don't have SSL on my FTP. This is the code in Pelican's Makefile: ftp_upload: $(OUTPUTDIR)/index.html lftp ftp://$(FTP_USER)@$(FTP_HOST) -e "mirror -R $(OUTPUTDIR) $(FTP_TARGET_DIR) ; quit" which renders in terminal as: lftp ftp://[email protected] -e "mirror -R /Volumes/HD/Users/me/Test/output /myblog_directory ; quit" What I managed so far is, denying the SSL check by changing the Makefile to: lftp ftp://$(FTP_USER)@$(FTP_HOST) -e "set ftp:ssl-allow no" "mirror -R $(OUTPUTDIR) $(FTP_TARGET_DIR) ; quit" Due to my incorrect implementation I get logged in correctly (lftp [email protected]:~>) but the one line feature doesn't work anymore and I have to enter the mirror command by hand: mirror -R /Volumes/HD/Users/me/Test/output/ /myblog_directory This works without an error and timeout. The question is how to do this with a one liner. In addition I tried: set ssl:verify-certificate/ftp.myblog.com no This trick to disable certificate verification in lftp: $ cat ~/.lftp/rc set ssl:verify-certificate no However, it seems there is no "rc" folder in my lftp directory - so this prompt has no chance to work.

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• Goldtouch USB Keyboard reverses keystrokes in fast typing -- expected?

  - by Justin Grant

  I am running into an odd keyboard problem: some key combinations end up reversed (e.g. "pl" ends up being emitted as "lp") when I'm typing quickly. The problematic ones are the key combos I hit with two adjacent fingers on my right hand-- in other words, the combos I can hit the fastest. No idea how fast is "fastest", but I guess around 50-150 msecs gap between them. I'm trying to track down whether this represents a failed keyboard, an inherent limitation of my Goldtouch USB keyboards, or a software problem on my Windows 7 Lenovo T500. I use a PS/2 version of the same Goldtouch keyboard at home with no problems. I've tried another USB keyboard with my laptop and can't repro the problem. I've also used this keyboard on other laptops without a problem. According to this SU thread, USB keyboards have higher latency than PS/2 keyboards-- up to 30 msecs. I find it hard to imagine that I can type key combos faster than 50 msecs, probably more like 100-150. Anyone encountered this problem with this or another keyboard? If so, how did you fix it? Any idea if there's a "keyboard log" or some way to diagnose the problem inside Windows?

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• Getting SMB file shares working over a PPTP VPN

  - by Ben Scott

  I'm having issues getting SMB file shares working over a PPTP VPN. The server setup consists of a security device (DrayTek V3300) which passes the PPTP authentication to a SBS2003 server running RRAS. The server is the DC and provides DNS and WINS, the single NIC's name server is set to the NIC's IP (192.168...), and DHCP on the DrayTek sets the server IP as the DNS. If I create a new VPN connection in Win7, leaving everything as default apart from the server, username, password and domain, I can: ping everything by IP address resolve IPs with nslookup using their fully-qualified name, as in nslookup fileserver.mydomain.local ping machines by fully-qualified name, as in ping fileserver.mydomain.local However if I try to access a file share: within Explorer, I get "Windows cannot access ..." with "Error code: 0x80004005 Unspecified Error", using net use z: \\fileserver.mydomain.local\share, I get "System error 53 has occurred. The network path was not found." If I add the machine name to my HOSTS file I can use the file share, which is my last-ditch workaround, but I have a number of VPN users and would rather a solution that doesn't involve me trying to hand-edit system files on computers half a country away. If I set the WINS server explicitly in the connection's IPv4 settings I don't have to use the FQN to ping the machine, but that doesn't change anything else. EDIT: The PC I'm having the issue on is running Win 7 Home Premium. After more testing I actually have two other PCs that work, one W7HP, one XP Home, and another Vista PC that doesn't work (not tested as much as the others), all four on the same internet connection (behind the same router). All of them were tested with a straight-forward, all defaults, new VPN configuration.

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• Desktop SATA drives in SATA <-> FC array

  - by chris

  Let's assume you've got a box like one of these with space for 24 SATA disks. What are the best bits of advice for deploying this? For instance, should you be greedy and go for the 1.5 or 2tb disks or are they just not reliable enough to be used in an array like this and you should stick with 640gb or 750gb disks instead? Also, I know that FC (or generically, "enterprise class") disks have a different error recovery strategy than desktop disks. An enterprise disk will fail a read quickly and report to the controller that it wasn't able to read that block, and the RAID controller will quickly regenerate the info from the parity disk and mark the block as bad. A desktop disk, on the other hand, will try and try and try again to get the data, and in pathological cases this may cause a raid controller to fail the whole disk because the read operation times out. So there are a couple aspects to this question: What's the best sort of disk to get today? (ie specific disks on the market in Feb 2010) Generically, what should someone look for when trying to buy something like this that kinda walks the line between enterprise and consumer? Lastly -- is there anything that can be done with current "consumer" disks to make them more suitable for array use? IE can you use a SMART configuration to change the error recovery strategy used by the disk? Thanks!

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• Use Windows/Mac MySQL GUI over SSH Tunnel

  - by Marcin

  I am working on a client's website and he has hosting through 1and1. They don't allow connecting directly to their mySQL server from anywhere. I can't for instance load up a mySQL GUI on windows and just connect and work on the databases, it says host not found. His hosting account on the other hand is given access to the mySQL server even though it is in a different location. Let's say these are the servers I'm working with: His main hosting: Address: thehost.com Username: joe His mySQL server: Address: mysqlserver.com Port: 3306 Database: thedata User: dbouser The main hosting account he has comes with SSH. So if I SSH into thehost.com on port 22 and then use the mysql command to connect to mysqlserver.com, it works. I have tried to set up SSH tunneling but the problem is that it's not the mySQL server that has SSH allowed, it's the main hosting. How do I set up SSH Tunneling on both a Mac and a Windows machine so that I can run any GUI I want and I will be able to connect to the mysqlserver.com server. All based on the information above that SSH access is to thehost.com only, and thehost.com itself can connect to mysqlserver.com.

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• Disabling DNS Registration on Server 2008 R2

  - by WaldenL

  I want to tell a server 2008 R2 machine to NOT register it's IP addresses in DNS. I go into the Advanced tab on IPv4 and turn off "Register this connection's addresses in DNS" simple! But... the addresses are updated in DNS anyway! And actually the A record is eventually removed from the DNS server. I've confirmed that the checkbox is off by looking at it myself, and by checking the RegistrationEnabled registry value for that adapter. Both confirm that the registration is off. I've turned of DNS debug logging on the DNS server and I can see DNS Update requests coming from the server in question! This should not happen. What's even odder is that eventually (several hours) the A record for the server (which I added by hand!) is removed from the DNS server. I've also confirmed that scavaging is off on both DNS servers in the domain. Ideas? Edits: Per the comment: The server has static IP addresses. However, it's got two of them on one adapter. Since I'm in a VM (HyperV) environment I just spun up a second adapter and moved the second IP to the second adapter. I set the first adapter to auto-register (since that's the IP I want anyway) and the second adapter to NOT auto-register. We'll see if this is any better. Not any better. On a reboot of the server the registration was removed from DNS. Seems both cards are still contacting the server. Based on the DNS log the card that shouldn't register in DNS is registering a 'delete' request. And then the card that should register is registering an add request but that's ignored. I'm totally confused at this point.

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• Windows Server 2008 Services won't start after patch

  - by Antitribu

  After installing the run of the mill patches today on a Windows Server 2008 (Running as an AD controller and Exchange 2007 Server) the machine came back up with "configuring updates stage 3 of 3 0% complete". The machine had been kept reasonably up to date so this likely was caused by a very recent patch. At the leaste the following patches were installed: KB973037 KB969947 KB973565 Restarting the server into safe mode and then subsequently rebooting (with no changes made) allowed the computer to restart and I can now log in normally. However none of the critical services start; including but not limited to Exchange, DNS and Terminal Services (Obviously if DNS doesn't start other things will break). I am unable to run Internet Explorer but Chrome will work. There are no meaningful errors in the event logs as to why services won't start. Under KDC I have The Key Distribution Center (KDC) cannot find a suitable certificate to use for smart card logons, or the KDC certificate could not be verified. Smart card logon may not function correctly if this problem is not resolved. To correct this problem, either verify the existing KDC certificate using certutil.exe or enroll for a new KDC certificate. This is going to be an evil one to debug and I'm kinda hoping someone has encountered it and knows the answer off hand. Thanks all.

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• Can you use SQLite 64 bit odbc from powershell

  - by Levin Magruder

  Basically, my question is "Does this combo work for anyone," and, "Can you see what I am doing wrong" I have installed 64 bit ODBC driver for sqlite, downloaded from this page. I am running powershell version 2 on window 7. In ODBC configuration I create a system DSN with name LoveBoat, pointing at a valid file. I don't have any "real" apps to test whether the ODBC connection works, but a simple program I list below works. However, with PowerShell, which is what I want: $x = new-object System.Data.Odbc.OdbcConnection("DSN=LoveBoat") $x.open() That yields the error: Exception calling "Open" with "0" argument(s): "The type initializer for 'System.Transactions.Diagnostics.DiagnosticTrace' threw an exception." At line:1 char:8 + $x.Open <<<< () + CategoryInfo : NotSpecified: (:) [], MethodInvocationException + FullyQualifiedErrorId : DotNetMethodException On the other hand the test program below runs and prints out the expected data. using System.Data.Odbc; using System.Data; using System; public class program { public static void Main(string[] args) { OdbcConnection conn = new OdbcConnection(@"DSN=LoveBoat"); conn.Open(); OdbcCommand comm = new OdbcCommand(); comm.CommandText= "SELECT Name From Myfavoritetable"; comm.Connection = conn; OdbcDataReader myReader = comm.ExecuteReader(CommandBehavior.CloseConnection); while(myReader.Read()) { Console.WriteLine(myReader[0]); } } }

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• Ubuntu 10.04 preseed unattended install results in faulty partition table

  - by joschi

  I'm currently trying to set up an unattended installation of Ubuntu 10.04 (Lucid Lynx) through preseeding. But whenever I try to create a custom partition scheme, the Debian installer (which Ubuntu is using) produces a faulty partition table. I've taken the partition scheme described in the example preseed file: d-i partman-auto/expert_recipe string \ boot-root :: \ 40 50 100 ext3 \ $primary{ } $bootable{ } \ method{ format } format{ } \ use_filesystem{ } filesystem{ ext3 } \ mountpoint{ /boot } \ . \ 500 10000 1000000000 ext3 \ method{ format } format{ } \ use_filesystem{ } filesystem{ ext3 } \ mountpoint{ / } \ . \ 64 512 300% linux-swap \ method{ swap } format{ } \ . Unfortunately it also produces an incorrect partition table on the disk. The installation process itself is working and the installed system eventually boots and is working, as far as I can tell. But fdisk and cfdisk are still complaining: # fdisk -l /dev/sda Disk /dev/sda: 17.2 GB, 17179869184 bytes 255 heads, 63 sectors/track, 2088 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000a1cdd Device Boot Start End Blocks Id System /dev/sda1 * 1 5 37888 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 5 2089 16736257 5 Extended /dev/sda5 5 2013 16121856 83 Linux /dev/sda6 2013 2089 613376 82 Linux swap / Solaris cfdisk even refuses to start at all: # cfdisk /dev/sda FATAL ERROR: Bad primary partition 1: Partition ends in the final partial cylinder parted on the other hand does not complain about the cylinder boundary of /dev/sda1: # parted /dev/sda p Model: VMware Virtual disk (scsi) Disk /dev/sda: 17.2GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 1049kB 39.8MB 38.8MB primary ext4 boot 2 40.9MB 17.2GB 17.1GB extended 5 40.9MB 16.5GB 16.5GB logical ext4 6 16.6GB 17.2GB 628MB logical linux-swap(v1) Since the installed system is working, it shouldn't be a big problem but I'm afraid that this will mean trouble in the future.

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• Cygwin - Repo with Separate Git/Working Dir Doesn't Work

  - by Kyle Lacy

  Since I've switched to OS X and Vim, I've found it easiest to manage all of my 'dotfiles' (all of my configuration files and miscellaneous scripts) with Git. Having already set up my dotfiles in a repo following this tutorial, I figured it would also be easy enough to migrate all of my settings into my Cygwin setup on my Windows partition. Already having the repo setup on Github, I simply clone'd the repo, and moved all of the files over to my home directory, making it a mirror of my OS X home directory. Unfortunately, I cannot seem to use the actual repo any further within Cygwin. The problem is that I cannot use my dotfiles repo with git within Cygwin. The setup is unique from most normal git repos, in that the working directory and the git directory are in different locations. Specifically, the working directory is $HOME (/Users/kyle on OS X, /home/kyle in Cygwin), and the git repo is $HOME/.dotfiles.git. So, if I wanted to get the status of the repo, for example, I would type the following command (which I alias to reduce typing, of course): git --work-tree=$HOME --git-dir=$HOME/.dotfiles.git status -uno While this works fine on OS X, this refuses to work within Cygwin. Regardless of whether or not I use my alias, or whether or not I substitute $HOME by hand, I get the following git error: fatal: Not a git repository: /home/Kyle/dotfiles/.git/modules/.build/git I don't understand where this error comes from, but the path /home/Kyle/dotfiles was the original location of the git repo when I initially cloned it. Additionally, it's important to note that the repo relies heavily on submodules. If specifics are necessary, the repo in question can be found on GitHub. The commands I ran to setup the repo in Cygwin can also be found within the Readme file.

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• Uninstall php5 installed from source.

  - by diegomichel

  I have tried to install php5 from source , and it worked... Then for some reason need to install the official packets, so i tried a make uninstall and for my surprise there is such make uninstall... so i tried delete all the installed files by hand. Then installed the official debian packages and it worked fine... till i need install sqlite module, which give me the following error: php --version PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20090626/pdo_sqlite.so' - /usr/lib/php5/20090626/pdo_sqlite.so: undefined symbol: php_pdo_register_driver in Unknown on line 0 PHP Warning: PHP Startup: Unable to load dynamic library '/usr/lib/php5/20090626/sqlite.so' - /usr/lib/php5/20090626/sqlite.so: undefined symbol: php_pdo_register_driver in Unknown on line 0 PHP 5.3.1-5 with Suhosin-Patch (cli) (built: Feb 22 2010 22:46:05) Copyright (c) 1997-2009 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2009 Zend Technologies So i remember that manual install i did, and i think there is some old lib installed causing that problem, the bad thing is that there is not such make uninstall on the source code of php5... php-5.2.13 > make uninstall make: *** No rule to make target `uninstall'. Stop. I have tried reinstall and purge all php related packages via aptitude with not success. OS: Debian Squeeze. uname -a Linux desktop 2.6.32-trunk-amd64 #1 SMP Sun Jan 10 22:40:40 UTC 2010 x86_64 GNU/Linux Any idea how to fix that?

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• How do you host multiple public facing websites on a VPS?

  - by pedroarvy

  We host about 30 websites using typical shared hosting plans using ASP.NET and SQL 2000/2005/2008. I am now wondering about hosting all of these websites using our own virtual private server. This is clearly cheaper but comes with a lot of questions I need answers to: Is the risk of having to keep this VPS server up and running worth it? Until now, the host provider has managed the server and we have not had to worry about crashes, downtime, software patches etc. We are not server administrators, we are programmers, so this is not really our expertise. On the other hand, it may not be hard to learn. When we make a website live, we log in to a domain management control panel and change the primary and secondary name servers to point to our shared web host: Eg ns1.sharedwebhost.com and ns2.sharedwebhost.com These name servers are going to have to change when we have a VPS. I don’t understand anything about how to set this up. Is there some useful info anyone could direct me to? Or is there software we need to install to make the primary and secondary name servers work on our VPS? The control panel we have for shared hosting comes with DNS management like this: http://www.yart.com.au/stackoverflow/dns.png What software would I need to install to create this for each site we host at a VPS? The control panel we have for shared hosting also comes with a POP email interface that allows email addresses to be added easily by our customers. Is this something that can be easily set up at a VPS so clients can manage their own email addresses? Is there software we need to install to make this work?

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• IPMI not fucntioning with Network Bonding

  - by muhammed sameer

  Hey, I am having problems with running IPMI on my servers that have network bonding enabled. Platform: CentOS release 5.3 (Final) Kernel: 2.6.18-92.el5 64bit Dell PowerEdge 1950 Ethernet controller: Broadcom Corporation NetXtreme II BCM5708 Gigabit Ethernet I have bonded the interface eth0 and eth1 as active passive, with eth0 as the active interface, below is conf description from /proc Bonding Mode: fault-tolerance (active-backup) Primary Slave: eth0 Currently Active Slave: eth0 MII Status: up MII Polling Interval (ms): 30 Up Delay (ms): 0 Down Delay (ms): 0 Slave Interface: eth0 MII Status: up Link Failure Count: 0 Permanent HW addr: 00:22:19:56:b9:cd Slave Interface: eth1 MII Status: up Link Failure Count: 0 Permanent HW addr: 00:22:19:56:b9:cf My IPMI device is as follows IPMI Device Information Interface Type: KCS (Keyboard Control Style) Specification Version: 2.0 I2C Slave Address: 0x10 NV Storage Device: Not Present Base Address: 0x0000000000000CA8 (I/O) Register Spacing: 32-bit Boundaries I Have used openIPMI as well as freeipmi both to control the chassis via the IPMI card, but on servers which have bonding enabled, the command times out, below is the full run of the command with debug info. ipmi_lan_send_cmd:opened=[0], open=[4482848] IPMI LAN host 70.87.28.115 port 623 Sending IPMI/RMCP presence ping packet ipmi_lan_send_cmd:opened=[1], open=[4482848] No response from remote controller Get Auth Capabilities command failed ipmi_lan_send_cmd:opened=[1], open=[4482848] No response from remote controller Get Auth Capabilities command failed Error: Unable to establish LAN session Failed to open LAN interface Unable to get Chassis Power Status On the other hand I configured IPMI on a box with the same specs as mentioned above without bonding and IPMI works perfectly. Has anyone faced this problem with IPMI + Bonding ? I would be thankful is someone helps circumvent this issue. Muhammed Sameer

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• Browsing Audiobooks on an iPod Nano

  - by Electrons_Ahoy

  The sitation: I've got a stack of audiobooks in MP3 format in my iTunes library, and both an iPhone and an iPod Nano. After this question, I've changed the Media Kind for the audiobook MP3s from Music to Audiobook. This has been, overall, spectacular, as now I can resume where I was, they show up under Audiobooks, etc. On the iPhone, it's also super convenient, since the interface shows what used to be an album with multiple songs as a single book with multiple chapters, and going into "Audiobooks" presents me with a list of books, not tracks. The Nano, on the other hand, is a little strange. After changing the media type and re-syncing the ipod, the files in question are now listed under Audiobooks rather than Music, and the extra Audiobook features are present (resume playback and so on,) but the Audiobooks menu just lists all the MP3 tracks on the iPod in alphabetical order, ignoring whichever book/album they belong to - and doesn't seem to let me browse them any other way. This is, clearly, a little sub-optimal. Did I screw something up? How do I get the Nano to treat the files in a similar way to the way the iPhone and iTunes does - as books with chapters? Is there a step I missed somewhere? Do I need to reformat the iPod? Is this even possible? (Footnote: shameless bump, since this just scored me a tumbleweed.)

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• How to stop Excel 2003 from loading a Gazillion files

  - by Gary M. Mugford

  One of my soon-to-be-ex-friends got an Excel file from another friend of his and decided to click on it. It started opening all kinds of files from within Excel. Over 200 and still counting when he called me. I told him to go to task manager, which showed a LOT of files in the applications tab, but only one Excel.exe in the processes tab. Closing it down there, closed down Excel. I then CrossLooped in to see if I could give him a helping hand. Each time Excel was re-opened, the mass influx of files started. They were all kinds of files, PDFs, Docs, JPGs, even some spreadsheets. It looked like the end of solitaire, with multiple windows opening (XP) and the counter on the lone Excel button on the task bar counting off the files. I did the task manager exit routine and went looking for temp files. I CrapCleaned out the system. Made sure I went through the files created in the last hour and deleted anything with a temp anywhere in it. I also deleted the crappy infected/corrupted file from it's place on the desktop (yeah, I know, I yelled for 15 minutes on THAT subject). Despite a delousing, the restart of Excel, which complained of a deactivated add-in, would start the cascading windows, whether I answered yes or no to that question. Yes, it knew it had a serious crash, but why would it just keep on trying to load the bad file, even when I got rid of it? But here's the real question. WHERE was it loading from? I went through the backup folder and NOTHING was there! So what's the process for starting Excel WITHOUT it trying to do a crash recovery? Sort of makes me feel stupid at times. Thanks for any light you can shed on this issue. GM

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• unreadable corrupted ntfs partition - lost clusters reported

  - by Eduardo Martinez

  partition magic is reporting multiple 'bad file record signature' and 'lost clusters' errors on my 250GB samsung sata disk (connected via usb on a xp sp3). Unfortunately PM is unable to fix. PM shows the drive as being NTFS, detects used space ok and also drive name. But PM browser (right click on partition, browse...) won't show anything (as if disk was empty) Windows Explorer is not even picking the drive name and reports 'the file or directory is corrupted and unreadable' PTDD partition table doctor demo tells me the boot sector is fine, and I can see all disk content on its browser - but crucially cannot copy that content over to a new disk (PTDD browser is pretty arid to say the least) Also tried - photorec-6.11.3 - it actually started to extract files but wouldn't keep file names or any folder structure (maybe I missed sth on the configuration options) - find and mount - intellectual scan went well, the only partition on the disk was detected, then tried to mount into p: but got this error on windows explorer: 'p:\ is not accesible. The media is write protected'. Find and mount allows you to create an image from partition but I don't have a disk big enough at hand. Does anyone know if this will keep the extracted files/folders structure intact? I'm starting to think the disk is pretty screwed and my chances to recover this data are slim. Please someone enlighten me with that marvellous piece of software I am missing :-) Thanks in advance

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• Have powershell zip the contents of a bunch of folders, individual zip for each folder

  - by WebDevHobo

  Recently, I asked how to do this with a .bat file and an answer was provided. for /D %%d in (*.*) do "C:\Program Files\7-Zip\7z\7za.exe" a -tzip %%d.zip %%d However, this proved useful only for folders that have no spaces in their name. The reason being that batch will do the following: if the folder name is "jef's vacation pics", the variables will be: %%d = jef's %%e = vacation %%f = pics And then it tries to pass only %%d to the 7-zip program, which will not find such a folder and therefor will not create a zip file. I've tried looking up some tutorials, documentation sites and such, but I haven't been able to come up with an answer. There may be an answer, but I want to take this opportunity to try my hand at powershell. I was thinking that a function with 1 argument, that being the parent-folder of the sub-folders that need to be zipped, would be the best approach. So here's what I have, which doesn't work, probably due to my general in-experience with powershell: function zipFolders($parent) { $zip = "C:\Program Files\7-Zip\7z\7za.exe"; $parents | ForEach-Object $zip a -tzip }

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• Check for updates of a specific Debian package list

  - by Erwan Queffélec

  The setup I run a Debian Squeeze host that I use to build a multilanguage project (python, java, php...) and generate custom packages (debian and RPM) automatically (through jenkins) The problem The target distributions of those Debian packages are Etch, Lenny and Squeeze. But our project has some native dependencies that are available only through the DebianRelease + 1 repository (i.e Lenny + 1 == Squeeze, Squeeze + 1 == Wheezy). We for example, need the jetty packages from Squeeze in Lenny, and the cyrus-imapd-2.4 packages from Wheezy in Squeeze. Some additional info : Some package we can simply 'backport by hand' by mirroring the DebianRelease + 1 packages to our own repositories. For instance, the jetty package from Squeeze will run fine on Lenny because it doesn't need an s**tload of additional dependencies However we do need to rebuild some packages. For instance, cyrus-imapd-2.4 from Wheezy has a lot of unsatisfied dependencies on Squeeze. So we need to rebuild it in Squeeze and then upload it to our repo. The question I need to have a simple way of knowing if they are any updates on those extra packages (both "normal" and "security" updates). I could write a simple script that runs weekly, get some parameters from a file, and generate an update report. Let's say the file looks like this: jetty:squeeze cyrus-imapd-2.4:wheezy The script should run as normal user not to mess up the system apt configuration and issue the appropriate commands to generate that report. Does Debian has some built-in apt-* commands/options dedicated to that kind of problem I could use to write this script ? If not, can someone think of another clean solution to achieve what I need ?

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• Windows 7 search doesn’t find text strings

  - by Hugh Tash

  I’m not able to find any text strings starting not from the beginning of word in filename or in file content using Windows 7 search. My Windows 7 search configuration: Let’s say I’m searching for a documents containing word “content”. I’m able to find those documents when searching for “content”, “conte”, “con” (as long as the string includes the beginning of the word). "content" "con" But if I search for “ontent”, “tent” or any other combination that doesn’t include the beginning of the word, Windows search won't find it. I've tried other indexing/searching software such as Copernic Desktop search, Google desktop search. Those programs also weren’t able to find part of the word starting from the middle of the word. For instance, it finds “conte”, but doesn’t find “onte”. Finds “conte” Doesn’t find “onte” I got the same problem using Copernic desktop search. On the other hand, when I use non-indexing content search software such as Agent Ransack or FileSeek, I get the same results when searching for “conte” or “onte”: “conte” “onte” Why do all pre-indexing content search applications (Windows search, Google desktop, Copernic desktop search) fail to search for a string inside the words? Why do non-indexing applications find text strings wherever they are: in the beginning, middle or end of the word? I’ve tried wildcards and other constructions with no luck. *onte onte “onte” content:onte content:onte content:~onte All these searched doesn’t find the word “content”. How can I make Windows search find strings from any part of words? Could you try these searches and see if they work for you? Or is this normal behavior? Thank you. Update: Using wildcards before or after "onte" doesn't find any results. content:~=onte doesn't find any results.

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