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Articles indexed Friday March 18 2011

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• Does the OS X DHCP client support classless static routes (RFC3442)?

  - by cense

  Simply put: does Mac OS X support RFC3442? RFC3442 implements DHCP codes (121 and 249) to provide classless static routes to DHCP clients. I can only seem to find rather old information circa 2005-2008 which implies that OS X does not support RFC3442. Any chance this has changed recently and I'm just doing something wrong while setting it up? My anecdotal testing seems to confirm that OS X does not support RFC3442 but I'm looking for confirmation. If OS X still doesn't support RFC3442, what is an alternative method of pushing static routes to OS X clients?

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• Mac OS X Server 10.6.6 DNS not responding properly, get a "Truncated, retrying in TCP mode" for subdomain

  - by Eric Arseneau

  If I do an nslookup on youtube.com, no problem, if I do one with www.youtube.com, failure. See details below. [~] nslookup youtube.com Server: 192.168.1.1 Address: 192.168.1.1#53 Non-authoritative answer: Name: youtube.com Address: 74.125.127.93 Name: youtube.com Address: 74.125.47.93 Name: youtube.com Address: 74.125.95.93 [~] nslookup www.youtube.com ;; Truncated, retrying in TCP mode. ;; Connection to 192.168.1.1#53(192.168.1.1) for www.youtube.com failed: connection refused. If I do the same from a Windows machine its fine, its when I do it from a Mac workstation that I get the issue. I have rebooted, both server and workstation, I did a changeip, but nothing is working. Any recommendations?

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• Password rules for yppasswd

  - by gstoynev

  Hello all, I have a NIS master-slave setup and I would like to improve the password rules/complexity for it. Seems like if I introduce new rules to the NIS Master they are applicable only from there. What I mean: I want minimal password length of 9 characters. On the NIS master if I run 'passwd' it obeys this requirement. If I run 'yppasswd' it just go to the default 6 characters. If I use 'chage -d 0 user1' to force a user to change a password, the user is prompted only when login on the NIS Master. The user's old password is still good to login at NIS clients. All machines are running Ubuntu 9.10 or 10.04. How I can strengthen yppasswd rules and make it warn users to change their passwords? Thank you all!

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• RRAS VPN on windows 2k3 AD, can access rras server only.

  - by nopsax

  I'm setting up a test lab and here is the current configuration: 192.168.86.201 - a windows 2003 machine acting as PDC with AD/DNS/DHCP/WINS. 192.168.86.62 - windows 2003 machine is the RRAS server with IAS, also a file/print server. 192.168.86.6 - gateway/router to internet 192.168.86.21 - Windows XP Workstation Everything works on the internal network, File/Print/AD etc. Whenever a user connects via vpn to the RRAS server remotely using their domain credentials, they are assigned an ip address from the 192.168.86.201 machine along with the wins server address etc. The vpn user can then ping/access resources on the RRAS server, but cannot ping/access resources of any other machines by name or ip. However, if I ping by name, it does resolve to the correct ip address, just no replies. I did notice that on the RRAS server the 'internal' interface gets an ip address of 192.168.86.75 when a remote user connects, and the remote user is assigned, for example 192.168.86.71 . The RRAS server responds on both the .62 and .75 ip addresses. The client also unchecks the 'use remote default gateway option'. Also, I tried connecting a laptop to the physical network, joining the domain, then going remote and dialing the connection before domain login, and everything seems to work, e.g. browse-able shares via network neighborhood. But I can't really join the domain remotely if I cannot access any other resources. I really need to monitor traffic to see whats happening to those packets but won't be able to until this weekend. Any help is appreciated, will provide whatever configurations are needed.

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• Existing open source software for wireless mesh networking?

  - by user70352

  Hello! My goal: Build a wireless mesh network with some ALIX 2D2 (500 MHz AMD Geode LX800 x86 CPU, 256MB RAM, Atheros wireless card) Aside from working like a normal wireless mesh network users should be able to read/write data from/to the ALIX Boxes and the ALIX boxes should be able to process data. Questions: Should I try to flash dd-wrt x86, voyage linux (linux.voyage.hk) or something else? What (open source) software should I look into before I start? Should I use a 'server' for data storage and processing instead of the ALIX boxes? Is it even possible to use the ALIX boxes for routing AND data storage and processing? Final notes: Data can be anything, for example, I want to setup a wireless mesh using the OLSRD protocol so my whole town gets wifi and can access songs on the network. It's not for that, but that's the idea. I'm not afraid of programing, compiling or working with *nix. This is mostly 'for fun' rather than for practicality. Thanks in advance for any feedback.

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• Oracle EE 11.2g: how to generate fresh new redo logs

  - by Aikanaro

  Hi, In the company I work for we are heavy users of vmware machines. Almost all our projects are developed inside a virtual environment up to the point where we have to deploy them into a production system. While in development, some colleagues of mine deleted the redo log files for Oracle in the hopes of gaining some free space. Now they are unable to start the database instance. Is there a way of generating a fresh new redo log so that the instance can be started? This is urgent and even though I'm currently googling for an answer I have yet to find it. Thanks in advance.

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• How to correctly add daemon in MacOS 10.6.6 via launchd?

  - by Eye of Hell

  Hello. I have a very simple task to accomplish: to start tomcat application server on latest MacOS as a daemon. I have performed following steps: Installed Tomcat in /Library/Tomcat/Home Validated that it runs fine by executed /Library/Tomcat/Home/bin/startup.sh Added org.apache.tomcat.plist file to /Library/LaunchDaemons as found on internet (http://blog.i18n.ro/complete-guide-for-installing-hudson-ci-on-os-x-10-6/) Instructed MacOS to load a daemon description via sudo launchctl load org.apache.tomcat.plist. It succeeded (issuing this command second time outputs "already loaded"). Instructed MacOS to start a daeon via sudo launchctl start org.apache.tomcat.plist At this point MacOS shows an error "launchctl start error: No such process". I have checked the logfile for launchd - it have no record for this error. Google says nothing. And from error text i can't figure out what is the "process" and why it is "wrong" :(. Any hints what i'm doing wrong?

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• Setting up SSL for phpMyAdmin

  - by Ubuntu User

  I would like to run phpmyadmin using my SSL certificate. I read that if I placed the following within the file: /etc/phpmyadmin/config.inc.php, it would force it to use SSL. And now it does... $cfg['ForceSSL'] =true; However, my issue is when I did this, now I get an error stating "cannot connect to server." I do a port scan and my port 443 is closed for one, but I am connecting via https:// for my secure web based email admin panel. This tells me this may not be the issue. Second, is that I have a SSL certificate I purchased but I am not sure how to apply this cert. mydomain.com.crt is sitting on my desktop, how should I be utilizing this? I remember creating a self signed cert for my web-email access. Do I have to do this for phpmyadmin as well? At least this way, since I am the only one who will ever access the DB, it will never expire. Also the phpmyadmin used to come up as: http://mydomain/phpmyadmin/ of course I am now trying to get to https://mydomain.com/phpmyadmin/ however, I do not have any pages on my website that requires https:// currently. In the future I may add this. But for now, I only want to access phpmyadmin via ssl. I can use my own -- but if this causes problems with future ecommerce apps under mydomain.com I would rather use the SSL cert I already purchased. Thank you!

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• Mimic the behavior of a machine added to a domain

  - by Ian

  Hello, For some reason, the IT department at our company does not want to add Windows 7 and Windows Vista machine to the domain controller. I hate to always provide my network credentials everytime I access a shared folder on a machine that is joined to the domain. I also hate to always provide my password when I launch outlook or Visual Studio (Team Explorer). Is there a way to mimic the behavior of a machine that is added to a domain without actually adding the machine in the domain? For shares, I can create a batch file that will NET USE the different fileservers we use here but that is a huge security risk as I will type my password as plaintext. Thanks!

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• Samba4 advice for production use

  - by pgb

  I have an old Samba 3 + LDAP server installed that needs to be rebuilt. I'm weighting my options, and Windows Server seems too expensive at the moment, and Samba 4 appeared to be a nice option, coupled with the last Bind 9 that can dynamically add the computers to the DNS. I have about 30 workstations, so I still consider it a small network. My questions are: Is Samba 4 stable enough for production? It seems as if the Samba team is too cautious on when to call their version final, or even beta, as compared with other open source projects. What Linux distribution would you recommend to set it up? I usually use Ubuntu Server, but may use another one if installing / maintaining Samba 4 is better on that one.

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• Apache not Forwarding Client x509 Certificate to Tomcat via mod_proxy

  - by hooknc

  Hi Everyone, I am having difficulties getting a client x509 certificate to be forwarded to Tomcat from Apache using mod_proxy. From observations and reading a few logs it does seem as though the client x509 certificate is being accepted by Apache. But, when Apache makes an SSL request to Tomcat (which has clientAuth="want"), it doesn't look like the client x509 certificate is passed during the ssl handshake. Is there a reasonable way to see what Apache is doing with the client x509 certificate during its handshake with Tomcat? Here is the environment I'm working with: Apache/2.2.3 Tomcat/6.0.29 Java/6.0_23 OpenSSL 0.9.8e Here is my Apache VirtualHost SSL config: <VirtualHost xxx.xxx.xxx.xxx:443> ServerName xxx ServerAlias xxx SSLEngine On SSLProxyEngine on ProxyRequests Off ProxyPreserveHost On ErrorLog logs/ssl_error_log TransferLog logs/ssl_access_log LogLevel debug SSLProtocol all -SSLv2 SSLCipherSuite ALL:!ADH:!EXPORT:!SSLv2:RC4+RSA:+HIGH:+MEDIUM:+LOW SSLCertificateFile /usr/local/certificates/xxx.crt SSLCertificateKeyFile /usr/local/certificates/xxx.key SSLCertificateChainFile /usr/local/certificates/xxx.crt SSLVerifyClient optional_no_ca SSLOptions +ExportCertData CustomLog logs/ssl_request_log \ "%t %h %{SSL_PROTOCOL}x %{SSL_CIPHER}x \"%r\" %b" <Proxy *> AddDefaultCharset Off Order deny,allow Allow from all </Proxy> ProxyPass / https://xxx.xxx.xxx.xxx:8443/ ProxyPassReverse / https://xxx.xxx.xxx.xxx:8443/ </VirtualHost> Then here is my Tomcat SSL Connector: <Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true" address="xxx.xxx.xxx.xxx" maxThreads="150" scheme="https" secure="true" keystoreFile="/usr/local/certificates/xxx.jks" keypass="xxx_pwd" clientAuth="want" sslProtocol="TLSv1" proxyName="xxx.xxx.xxx.xxx" proxyPort="443" /> Could there possibly be issues with SSL Renegotiation? Could there be problems with the Truststore in our Tomcat instance? (We are using a non-standard Truststore that has partner organization CAs.) Is there better logging for what is happening internally with Apache for SSL? Like what is happening to the client cert or why it isn't forwarding the certificate when tomcats asks for one? Any reasonable assistance would be greatly appreciated. Thank you for your time.

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• Using virtual IP with stunnel and haproxy

  - by beardtwizzle

  Hi there, We have a load-balancer setup, in which an HTTPS Request flows through the following steps:- Client -> DNS -> stunnel on Load-Balancer -> HAProxy on LB -> Web-Server This setup works perfectly when stunnel is listening to the local IP of the Load-Balancer. However in our setup we have 2 load-balancers and we want to be able to listen to a virtual IP, which only ever exists on one LB at a time (keepalived flips the IP to the second LB if the first one falls over). HAProxy has no problem in doing this (and I can ping the assigned virtual IP on the load-balancer I'm testing), but it seems stunnel hates the concept. Has anyone achieved this before (below is my stunnel config - as you can see I'm actually listening for ALL traffic on 443):- cert= /etc/ssl/certs/mycert.crt key = /etc/ssl/certs/mykey.key ;setuid = nobody ;setgid = nogroup pid = /etc/stunnel/stunnel.pid debug = 3 output = /etc/stunnel/stunnel.log socket=l:TCP_NODELAY=1 socket=r:TCP_NODELAY=1 [https] accept=443 connect=127.0.0.1:8443 TIMEOUTclose=0 xforwardedfor=yes Sorry for the long-winded question!

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• Tomcat6 Manager Webapp is 404 on apt-get install on Ubuntu 10.10

  - by Noel

  http://localhost:8080/manager/html gives a 404 error on apt-get install of tomcat6 (6.0.28 on JVM 1.6.0_20-b20 on 2.6.35-27-generic amd64). http://localhost:8080/host-manager/html works. Lists one Host name, localhost. cat /usr/share/tomcat6/conf/tomcat-users.xml <tomcat-users> <role rolename="admin"/> <role rolename="manager" /> <user username="tomcatuser" password="Password1" roles="admin,manager"/> </tomcat-users> cat /usr/share/tomcat6/conf/Catalina/localhost/manager.xml <Context path="/manager" docBase="/usr/share/tomcat6-admin/manager" antiResourceLocking="false" privileged="true" /> <role name="manager" /> <user name="manager" password="Password1" roles="manager" /> <user name="tomcatuser" password="Password1" roles="manager" /> Those two files are the only documentation I've seen on how to setup the Manager webapp, and they seem to be compliant with the requirements.

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• Server cost for smartphone app with web service

  - by FrankieA

  Hello, I am working on a smartphone application that will require a backend web service - but I have absolutely clueless to how much it will cost. Web Service will handle: - login of users - cataloging of our user base - holding minimal profile information for users (the only binary data is a display picture which will be < 20k each) - performing some very minor calculation/algorithm before return results - All the above will be communicated to server from a smartphone (iPhone/BlackBerry/Android) Bandwidth Requirements: - We want to handle up to 10k users throughout the day. - I predict 10k * 50 HTTP requests a day = 500,000 requests a day * 30 = 15 million requests a month Space Requirements: - Data will be in SQL database. - I predict 1MB/user * 10k = 10GB + overhead. In other words - space is not a big issue. Software Requirements: (unless someone knows an alternative) - Windows Server 2008 + IIS - MSFT SQL Server Note: This is 100% new to me, so please hit me with all you got. Do I need Windows Server or are there alternative? Is it better to get multiple cheap servers to distribute load? Will Amazon S3 work for me? How about Windows Azure? Thank you!!

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• Problem Implementing SSL with WSUS

  - by JohnB

  I'm working on setting up SSL on our WSUS server using a self signed certificate, but I'm running into trouble. Specifially, after running selfssl /n:CN=server.domain.local /t /v:365, and ensuring that Require Client Certificates is selected in the following directories: SimpleAuthWebService ServerSyncWebService DssAuthWebService ClientWebService APIRemoting30 I am receiving Event 120[2-5]2 upon running wsusutil.exe checkhealth. Basically, each of the directories I require the certificate on fails to work. What am I missing?

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• Correct location of git on Mac OS X

  - by zcreem

  On Mac OS x 10.6.6 I have git installed in /usr/bin/ I wanted to update the got version however the the git installer puts it in /usr/local/git/bin/ I realise I could rearrange to path to point to the local one first but what I do not get is where the /usr/bin version came from. Could it be part of an xcode install and lastly how would I delete correct it. I have looked and looked but find nothing and I didn't install it with ports etc. thanks

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• Partimage and autocheck problem when restoring Windows XP from image

  - by Xolstice

  I'm trying to create an image of Windows XP and clone it to several partitions on the same hard drive using Partimage. I seem to be running into a problem when I restore the image onto another partition - when I boot into the OS from the partition I just restored, it brings up this message during the boot sequence: autochk program not found - skipping autocheck, and then after this, the OS reboots the PC and the whole process repeats itself in an infinite loop. After doing some Google search, it is suggested that this loop was caused by the partition being hidden or the mountmgr.sys file is missing. I checked my configuration and verified that this was not the case. I'm just wondering: Has anyone else experienced this and is there a solution for it? Is this what happens when you try to restore the image to a different partition on the same hard disk or is Partimage itself the problem? Should I be trying out a different partition cloning software?

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• how do I tether my computer and blackberry?

  - by el chief

  I have Windows 7 Home Premium Blackberry Curve 9300 6.0 bundle 1478 (v6.0.0.380, platform 6.6.0.86) desktop software 6.0.0.380 I was able to connect with desktop software version 5 but 6 does not work. I am able to connect to the internet just fine with the device itself (ie can browse the web). How can I debug this? update: here's the error message: when i try to connect i get the message "failed to start mobile internet. the specified port is not open. please check your profile settings and make sure your radio is turned on. this service might also have been turned off by your wireless service provider or your administrator"

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• Erase just the free space on my hard drive

  - by Patriot

  I'm about to give away an older computer with just the Windows XP operating system intact and all other programs uninstalled. However, upon peeking at the "free space" with software called "Recuva", I notice lots of deleted things that could be recoverable. Some of these include sensitive data files, pdfs, and other personal items that I would not want retrieved. I ran a program called "Eraser" to try and overwrite that data, but it failed to do an adequate job. I also tried to do the job with "Glary Utilities" but it failed too. Short of installing a new, very cheap hard drive and re-installing the bare bones operating system, I'm out of ideas. EDIT - WOW!!! I was not really expecting this many GREAT ideas. My next question is this. If I go the DBAN route and truely wipe the hard drive, then restore my disc image (I use Acronis True Image) will it also restore the free space data? Does imaging just copy readable data? I have an old image of when the OS was first installed.

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• Log into another XP machine's SQL Server with a different userid? (WORKGROUP, not domain)

  - by Eric H.

  I have two machines at home, both XP Pro SP3. I have no domain controller, so they're both just in WORKGROUP. How can I, using Windows Authentication, log into an instance of SQL Server running on the other machine? Whenever I try it, it seems to try to login as 'Guest', even though I have entered the machine name (OTHER-DESKTOP), and login (OTHER-DESKTOP\otheruser) in the User Accounts Control Panel box. It works fine if I use sql server name and password, so I know the server is running. Any clues?

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• Should I use 802.11n with a 15 Mbps ISP (Comcast Cable)?

  - by stackoverflowuser2010

  I currently own a LinkSys-WRT54GL 802.11a/b/g wireless router, and my ISP is Comcast Cable providing me with 15 Mbps (that's bits per second, I believe) download speed. I am wondering if there is any benefit with using an 802.11n wireless router to access the Internet? The maximum theoretical speed of the WRT54GL router is 54 Mbps (802.11g), which is faster than the 15 Mbps provided by my ISP. I know that 802.11n has a max bandwidth of 300 Mbps, and it would help for intra-house transfers, such as streaming video from one computer to another. But is there any benefit to 802.11n for Internet activity, such as web browswing, gaming, and streaming video from Netflix?

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• Task bar remains visible with "Auto-hide the task bar" checked in Windows 7.

  - by Corey

  It's about time that I figure this out. I can say with a pretty high confidence that I have experienced this issue in all consumer versions of Windows since XP. I keep "Auto-hide the task bar" checked to maximize screen real estate. Every once in a while, the task bar will refuse to hide while individual windows will continue to act as if that option is checked (by falling under the task bar). For years, I have fixed this by rebooting. Of course, I cannot predict the timing or frequency of the problem, so the process becomes burdensome. I want to know how this can be fixed without rebooting. It has affected my on multiple machines using multiple versions of Windows, so I cannot be the only one who is bothered by it. Can anyone help me solve this?

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• Is it possible to play multiple audio streams from one "jukebox" to multiple Airport Express devices?

  - by Alex Reynolds

  I have set up a Mac mini as a jukebox that streams audio to an Airport Express in another room in the house, using the AirPlay/AirTunes feature in iTunes. I control this with the iOS Remote app, and this works great. At the present time, it looks like the Mac mini's copy of iTunes gets taken over by the Remote app, while streaming. If I set up a second Airport Express in room B, is there a way to set it up (as well as the jukebox) so that it can receive and play its own unique music stream ("stream B"), separate from what's going on at the Mac mini, or in room A, which is playing stream A? To accomplish this, I would be happy to buy a copy of Rogue Amoeba's AirFoil if it will allow sending multiple, separate audio streams from one computer to the multiple wireless bridges, while using the Remote app (or a Rogue Amoeba equivalent for iOS). However, it is unclear to me from their site documentation, whether that is possible or not. I'd prefer to give the points to an answer that solves this problem. If you don't know if it can be done, or do not think it can be done, please allow others to answer. I appreciate your help. Thanks for your advice.

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• How do I change the URL handler for Apple Mail?

  - by Alex Reynolds

  When I highlight and right-click on text in an email message in Apple Mail 4.4 (1082), I can select "Search in Google". Despite having either Google Chrome or Mozilla Firefox set as my default web browser within Apple Safari 5.0.3 (6533.19.4) preferences, Apple Mail will open Safari, then open a new window in Safari with the search results. How do I change the default URL handler in Apple Mail, so that searches are opened in my default browser? Or is this a known bug? Thanks for your advice!

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• Macbook Pro Hard Drive won't shop up on disk startup

  - by Kristal

  I have a macbook pro from 2007. It came with an installation CD for 10.4.8. The first problem is that it won't even recognize the installation CD even though the CD seems perfectly fine. So I used another installation CD just to get me to the Disc Utility dialogue box. I went through the steps to erase the hard drive. However when I attempted to reboot the machine using Disc Startup there was no option for me to select the hard drive. Of course, since I don't have the appropriate installation disk in it won't let me install anything. What are my options? Do I need to ask Apple to send me a new installation CD for this computer? And why wouldn't the hard drive show up in the Startup options?

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