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• What are the options for setting up a UNIX environment to learn C using Kernighan and Richie's The C Programming Language?

  - by ssbrewster

  I'm a novice programmer and have been experimenting with Javascript, jQuery and PHP but felt I wasn't getting a real depth of understanding of what I was doing. So, after reading Joel Spolsky's response to a question on this site (which I can't find now!), I took it back to basics and read Charles Petzold's 'Code' and am about to move onto Kernighan and Richie's The C Programming Language. I want to learn this in a UNIX environment but only have access to a Windows system. I have Ubuntu 12.04 running on a virtualised machine via VMWare Player, and done some coding in the terminal. Is using a Linux distro the only option for programming in a UNIX environment on Windows? And what are the next steps to start programming in C in UNIX and where do I get a compiler from?

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• Sex - in domain name is this bad???

  - by user3583

  In short I am working with a company that does trade shows... one of their new domain names has the word 'sex' in but completely innocently. EXAMPLE: www. someproductsexpo .com (Being 'some' 'products' 'expo'). The content is completely inoffensive and I do not see there being any other things that would flag either the web or any emails sent from [email protected] as inappropriate. I was just wondering if any has experiences of any domains like this or comments to add? Thanks

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• Need to run Domain Prep after adding new domain in Forest where OCS 2007R2 already deployed + active

  - by Cybersylum

  Hello, We have just added a new domain in our forest. We have had OCS 2007 R2 (standard) up and running in our forest for some time. However those domains were already present when we did all of the prep work (schema, forest, & domain) We will not be adding a new OCS Server in the new domain (just pointing users to the existing box). Do I need to run the domain prep again for the new domain? Thanks.

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• Host website without domain name?

  - by Frost Shadow

  I have an old desktop sitting around I wanted to try making a server out of, but I don't want to pay to register a Domain Name. Is there a way I can host a website without a domain name, or to register a domain name for free? If I can't host a web page without a domain name, can I just access the files on the server through the internet some how without a domain name? Thanks for any insight!

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• Change domain password from non-domain computer (AD)

  - by Josh

  I have a domain controller on Windows Server 2008. When I set up my users, I gave them all a dummy password with the "must change on next login" checked. Everyone's machine is all on the same network as the domain controller, but we are not forcing them to join their computers to the domain. The DC has a website which requires the use of domain accounts to access it. How do I tell my users to change their domain passwords without connecting their PC to the domain or making them log in to a machine on the domain? I do not want anything I will have to install on each client to allow them to change their passwords (I have a password expiration policy). Most of these workstations are XP.

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• blog.domain.com vs domain.com/blog

  - by bangoker

  Other than style, is there any significant difference between the 2, perhaps in something such as SEO? And style-wise, is there a "standard"/good practice about it, or its just up to your personal preference?

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• How can I use domain masking without having self referral in Google Analytics

  - by Cdore

  I have one old domain that points to a website's server's ip (let's call it www.oldsite.com). I have a new one, www.newsite.com, that is set up to be forwarded to a specific page on the website. Due to the way the host of newsite.com places the website in a frame, in Google Analystics, the newsite.com is listed as a source rather than the source they were at before hand, causing a self referral. A solution is to edit the code of the iframe as I looked up, but there's no way to really edit the host's masking source code of course. Another solution I did previously was have www.newsite.com point to the address that www.oldsite.come pointed to. It solved the analytics problems, but in exchange, the url masking no longer worked. In the address bar, it came up as www.oldsite.com. Is there a way to make me have url masking and be able to forward to agree with google analytics? The server of the website is hosted on a cloud server, if this is anymore information.

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• Domain Trust Issues When Setting Up TFS 2010 on Windows Server 2008 R2

  - by Chris Reynolds

  I am trying to setup Team Foundation Server 2010 on Windows Server 2008 R2 using a single server configuration. During the "Readiness Checks" phase of the configuration wizard, I am facing an issue that i preventing me from communicating with the domain controller (which is Windows Server 2000). [ System Checks ] TF255435: This computer is a member of an Active Directory domain, but the domain controllers are not accessible. Network problems might be preventing access to the domain. Verify that the network is operational, and then retry the readiness checks. Other options include configuring Team Foundation Server specifying a local account in the custom wizard or joining the computer to a workgroup. http://go.microsoft.com/fwlink/?LinkID=164053&clcid=0x409 After reading the log file, the main issue I am encountering appears to be: The trust relationship between this workstation and the primary domain failed. (type SystemException) I have read in several other locations that the solution to this issue is to: Leave the domain Restart Join a workgroup Restart Rejoin the domain Unfortunately, I have tried this several times now and the issue persists. Is there anything I can try on the either the client machine or the domain controller that may help solve my issue?

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• Windows Clients: Windows or Linux Domain Controller?

  - by Ramon Marco Navarro

  I'm planning to set up a domain controller for our small computer laboratory. I'm a little confused as to what operating system to use for our domain controller. What's in the lab: The lab has 25 units running a mix of Windows 7 and Windows XP. The domain controller will only have 2GB of RAM running a C2D E7200. (Is this enough?) What we want: The Domain Controller will also be running a git server. The Domain Controller will also be used as a general development machine (mostly Java, PHP). A way to centralize the updates for the windows clients, so that they won't have to download the same patches from the remote site. The machines would just query them from the local domain controller and get the updates from there. Our head recommended that I virtualize a Windows Server 2008 system under a Linux host and use the former as a domain controller and the latter for development or the other way around. A comparison of the advantages and disadvantages of using a Linux distribution or Windows Server 2008 in this situation would also be appreciated. As you may have noticed by now, I'm kinda new to setting up a domain so I hope you guys will be able to help me. Thank you.

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• Custom Domain for Google App Engine and Google Apps

  - by Kevin

  I have set up and configured Google App Engine and Google Apps to use my custom domain with a cname 'www'. I have configured my DNS (via fasthosts.co.uk) with the cname and pointed it to ghs.google.com. I can access the website using the google app engine domain at capel-y-crwys.appspot.com but I can't access it via my custom domain www.capelycrwys.org.uk. I have allowed several days for propagation of the DNS etc. The really strange this is I can access the app via my custom domain when I use the web browser on my Android mobile phone. I can't access the app via my custom domain from my home internet connection, my work internet connection or a friends internet connection. I tried a few online web proxies and I can access the app via the custom domain. I posted this question on the google forums code.google.com/appengine/forum/?place=topic%2Fgoogle-appengine%2FfUP-G_0FKE4%2Fdiscussion and a commentor has said he could access the app via the custom domain. So why can't I access it direct via my home internet connection etc? I've tried loads of google searching and even found a similar sounding post here on serverfault serverfault.com/questions/208461/custom-domain-name-server-not-found-google-app-engine-and-google-apps but it doesn't have an answer that helps me.

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• Problem with redirecting *.domain.com & domain.com to www.domain.com for HTTPS

  - by Mat E.

  We have a site I'll call acme.com. Most of the time you see http://www.acme.com and sometimes we redirect you to https://www.acme.com. We want to redirect anyone going to http://acme.com or http://*.acme.com to http://www.acme.com, and the same for https. (It's mainly to avoid the alert you get if you go to https://acme.com instead of https://www.acme.com) Our vhost file is at the end of the post. It works nicely except for one strange behavior: http://acme.com - successfully redirects to http://www.acme.com http://www.acme.com - successfully does not redirect http://foo.acme.com - successfully redirects to http://www.acme.com https://acme.com - successfully redirects to https://www.acme.com https://www.acme.com - successfully does not direct https://foo.acme.com - ERROR - redirects to http://www.acme.com It's this last result I can't fathom. I've tried a lot of trial and error solutions from Google & Stack Overflow but nothing seems to change it. Even if we swap the order of the configurations (so that 443 is before 80) it still redirects https://foo.acme.com to http://www.acme.com We are running Apache/2.2.12 on Ubuntu. Here's the configuration file: <VirtualHost *:80> ServerName www.acme.com ServerAlias acme.com *.acme.com ServerSignature On DocumentRoot /var/www/acme.com/public RailsEnv 'production' PassengerHighPerformance on <Directory /var/www/acme.com/public> AllowOverride all Options -MultiViews </Directory> SSLEngine Off CustomLog /var/log/apache2/acme.log combined ErrorLog /var/log/apache2/acme-error.log # Possible values include: debug, info, notice, warn, error, crit, alert, emerg. LogLevel warn RewriteEngine On RewriteCond %{HTTPS} off RewriteCond %{HTTP_HOST} ^[^\./]+\.[^\./]+$ RewriteRule ^/(.*)$ http://www.%{HTTP_HOST}/$1 [R=301,L] </VirtualHost> <VirtualHost *:443> ServerName www.acme.com ServerAlias acme.com *.acome.com DocumentRoot /var/www/acme.com/public RailsEnv 'production' PassengerHighPerformance on <Directory /var/www/acme.com/public> AllowOverride all Options -MultiViews </Directory> SSLCertificateFile /etc/ssl/certs/www.acme.com.crt SSLCertificateKeyFile /etc/ssl/private/acme.com.private.key SSLCACertificateFile /etc/ssl/certs/EV_intermediate.crt SSLEngine On CustomLog /var/log/apache2/ssl-acme.log "%t %h %{SSL_PROTOCOL}x %{SSL_CIPHER}x \"%r\" %b" ErrorLog /var/log/apache2/ssl-acme-error.log # Possible values include: debug, info, notice, warn, error, crit, alert, emerg. LogLevel warn RewriteEngine On RewriteCond %{HTTPS} on RewriteCond %{HTTP_HOST} ^[^\./]+\.[^\./]+$ RewriteRule ^/(.*)$ https://www.%{HTTP_HOST}/$1 [R=301,L] </VirtualHost>

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• Combine multiple unix commands into one output

  - by Ben McCormack

  I need to search our mail logs for a specific e-mail address. We keep a current file named maillog as well as a week's worth of .bz2 files in the same folder. Currently, I'm running the following commands to search for the file: grep [email protected] maillog bzgrep [email protected] *.bz2 Is there a way combine the grep and bzgrep commands into a single output? That way, I could pipe the combined results to a single e-mail or a single file.

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• Old operational master still thinks it is the "one"

  - by Doug

  Hi there, I have a domain with 3 AD servers for now i'll just call them: AD01 (Win 2008 GC, Operations master) AD02 (Win 2008 GC) AD03 (Win 2003 GC) A couple of months there was some hardware issues with AD01 so the operations master, PDC and Infrastructure Master was moved to AD02. All machines where on while this was happening. AD01 (Win 2008 GC) AD02 (Win 2008 GC, Operations master) AD03 (Win 2003 GC) AD01 was then shutdown for a month. Upon starting this machine up with replaced hardware (NIC and RAID card) i now have a weird problem. AD01 Thinks it is operations master still in AD on the local box AD02 & AD03 Thinks AD02 is operations master in AD on both boxes When running DCDIAG on AD01 i get a number of issues (listed below) When running "dcdiag /test:advertising" on AD01: Doing primary tests Testing server: Default-First-Site-Name\AD01 Starting test: Advertising Warning: DsGetDcName returned information for \\ad02.domain.local, when we were trying to reach AD01. SERVER IS NOT RESPONDING or IS NOT CONSIDERED SUITABLE. ......................... AD01 failed test Advertising Running partition tests on : ForestDnsZones Running partition tests on : DomainDnsZones Running partition tests on : Schema Running partition tests on : Configuration Running partition tests on : domain Running enterprise tests on : domain.local When running "dcdiag" on AD01 i get the following errors (excerpt of the Final output): Testing server: Default-First-Site-Name\AD01 Starting test: Advertising Warning: DsGetDcName returned information for \\ad02.domain.local, when we were trying to reach AD01. SERVER IS NOT RESPONDING or IS NOT CONSIDERED SUITABLE. ......................... AD01 failed test Advertising Starting test: FrsEvent There are warning or error events within the last 24 hours after the SYSVOL has been shared. Failing SYSVOL replication problems may cause Group Policy problems. Starting test: NCSecDesc Error NT AUTHORITY\ENTERPRISE DOMAIN CONTROLLERS doesn't have Replicating Directory Changes In Filtered Set access rights for the naming context: DC=ForestDnsZones,DC=domain,DC=local Error NT AUTHORITY\ENTERPRISE DOMAIN CONTROLLERS doesn't have Replicating Directory Changes In Filtered Set access rights for the naming context: DC=DomainDnsZones,DC=domain,DC=local Starting test: Replications [Replications Check,Replications Check] Inbound replication is disabled. To correct, run "repadmin /options AD01 -DISABLE_INBOUND_REPL" [Replications Check,AD01] Outbound replication is disabled. To correct, run "repadmin /options AD01 -DISABLE_OUTBOUND_REPL" So the problem appeasr to be that when i moved the operations master, AD01 never got the memo, and now that it's started up, all the other AD servers don't think its the boss anymore when it trys to replicate etc. So i really need to manually update AD01 so that it knows who the operations master, instrastructure and PDC is - but i'm not having any luck I've been googling for nearly a day and all solutions lead to "the cake is a lie" Your ninja skills will be greatly appreciated

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• How to trigger cross-platform jobs between Windows and Unix

  - by andyb

  I have an application which has components on Windows and Unix. I need to run overnight jobs which initiate tasks/jobs on both environment. These need to be sequenced so I cannot simple use Cron / Task Scheduler. For each job, there will be a controlling script either on Windows or Unix, but this script will need to initiate jobs on the other environment and detect when they are complete and a success/failure code. In the past I have achieved this using 'flag files' on a samba share. This worked but required 'polling' behaviour on the receiving end which I do not consider optimal. I would prefer not to have to embed user credentials in script if possible.

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• Asynchronous Sockets - Handling false socket.AcceptAsync values

  - by David

  The Socket class has a method .AcceptAsync which either returns true or false. I'd thought the false return value was an error condition, but in the samples Microsoft provide for Async sockets they call the callback function synchronously after checking for failure, as shown here: public void StartAccept(SocketAsyncEventArgs acceptEventArg) { if (acceptEventArg == null) { acceptEventArg = new SocketAsyncEventArgs(); acceptEventArg.Completed += new EventHandler<SocketAsyncEventArgs>(AcceptEventArg_Completed); } else { // socket must be cleared since the context object is being reused acceptEventArg.AcceptSocket = null; } m_maxNumberAcceptedClients.WaitOne(); bool willRaiseEvent = listenSocket.AcceptAsync(acceptEventArg); if (!willRaiseEvent) { ProcessAccept(acceptEventArg); } } /// <summary> /// This method is the callback method associated with Socket.AcceptAsync operations and is invoked /// when an accept operation is complete /// </summary> void AcceptEventArg_Completed(object sender, SocketAsyncEventArgs e) { ProcessAccept(e); } Why do they do this? It defeats the purpose of asynchronous sockets and stops the method from returning.

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• C Differences on windows and Unix OS

  - by zapping

  Is there any difference in C that is written in Windows and Unix. I teach C as well as C++ but some of my students have come back saying some of the sample programs does not run for them in Unix. Unix is alien for me. Unfortunately no experience with it whatsoever. All i know is to spell it. If there are any differences then i should be advising our department to invest on systems for Unix as currently there are no Unix systems in our lab. I do not want my students to feel that they have been denied or kept aloof from something.

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• SCO UNIX problem: "Cannot create /var/adm/utmp or /var/adm/utmpx"

  - by Maktouch

  Hey everyone, I have an old server that doesn't boot. I don't know the version of unix installed, but I see SCO UNIX. It stops with that error: UX:init: ERROR: Cannot create /var/adm/utmp or /var/adm/utmpx UX:init: ERROR: failed write of utmpx entry: " " UX:init: ERROR: failed write of utmpx entry: " " UX:init: INFO: SINGLE USER MODE After that message, it just stops. I cannot write or press anything. Even CTRL + ALT + DEL does not work. I cannot get into the system. I have tried booting with a DamnSmallLinux LiveCD but it does not recognize the file system on HDA. Is there a way to either log in as root or bypass this error? Thanks.

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• Seeing Unix file permissions under Windows

  - by Bernhard V

  Hi, is there a way to view the Unix permissions for a file under Windows?

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• SCO Unix - finding and pulling data

  - by lxlxlxl

  We recently acquired a company that was running a legacy application on a SCO Unix box. I can tell that the app is running off of http, but its reporting and data export functions are limited and I'd like to find a master db or data source on the box that maybe I can migrate into something more useful. Any ideas how I could possibly find that? Would there be something in apache or startup scripts that might point to a master db? do Unix applications have standard data source locations? I'm not sure if I'm wording this right so apologies in advance.

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• Any book that covers internals of recent versions of Unix OS

  - by claws

  This summer I'm getting into UNIX (mostly *BSD) development. I've graduate level knowledge about operating systems. I can also understand the code & read from here and there but the thing is I want to make most of my time. Reading books are best for this. From my search I found that these two books The Design and Implementation of the 4.4 BSD Operating System (1996) "Unix Internals: The New Frontiers" by Uresh Vahalia (1996) (See here for 2nd edition) are like established books on UNIX OS internals. But the thing is these books are pretty much outdated. So, Is there any recent books that covers internals of recent Unix OS? How about books on other Unix operating systems? They seem to be recent than above books but how close are they to OpenBSD/FreeBSD? Solaris 10 and OpenSolaris Kernel Architecture, 2 edition (July 20, 2006) HP-UX 11i Internals (February 1, 2004) I really don't prefer HP-UX as its not open source.

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• Client side certificates in client browsers with unix server for management

  - by user146253

  We are currently running Unix dedicated servers for everything (Web cluster, database, FTP, batch, ...) except for a Microsoft Active Directory Certificate Services. The sole purpose of this Windows box is to provide client side certificates to our clients browsers. All our clients are required to install a client side certificate on order for them to be able to access our website. Is there an alternative in the Unix space? The purpose is to make sure only the approved hardware of an approved client can access our website. I'm open for any solution that provides me with this level of security. We are however talking about thousands of certified computers just so you can factor that in in a proposed solution. Optionally we would also like to be able to revoke access. With Regards.

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• How to view multiple log files as one file in unix/linux

  - by user42679

  Hi, I was wondering if there is a convenient way in linux/unix to read multiple log files as one. More specifically, I would like to view a sequence of log files (app.log, app.log.1 app.log.2, etc) as one big file using normal unix tools (vi, less, etc). When the EOF is read the tool will automatically move to the beginning of the next file. During my work I have to analyze uat/prod logs to investigate and solve problems. The fact that I need to traverse many log files disturbs my work and causes delays. Any ideas?

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• Sockets: RAW or STREAM

  - by user1415536

  May be the question is a bit stupid, but I'll ask it. I read a lot about raw sockets in network, have seen several examples. So, basically with raw sockets it's possible to build own stack of headers, like stack = IP + TCP/UDP + OWN_HEADER. My question is, is it possible to get some kind of ready frame of first two(IP + TCP/UDP) from the linux kernel and then just append own header to them? The operating system in question is linux and the language is C. I cannot find any function which can do such a thing, but may be I'm digging in a wrong direction.

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• Unix printing a banner page on every print job

  - by yum_tacos4u

  I have a Data General server on unix that is printing a banner page on every print. I originally thought that the banner page was comming from the printer. As this is an HP printer, I used telnet to get to the jetadmin and then proceded to disable the banner page, but this did not solve the issue. I then went into the sysadm program to see if the TCPIP printing was set to print a banner page on print jobs, but I did not see any options to print a banner page. Any help or ideas on how to disable the banner page from printing in unix? Here is a banner page example print

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• Is there an equivalent for AnyDVD on Unix?

  - by akira

  What would be the equivalent to AnyDVD on Unix (linux,*bsd etc)?

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