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• Rails app returns HTTP 422 for new ServerAlias - Internet Explorer only

  - by Snips

  I have a long-standing Rails app running on Mac OS X (apache2). The set-up uses Apache virtual hosts and Passenger. The Rails app also uses HTTP Basic Authentication. I need to migrate the app from one url domain to another - with some overlap of both domain names being accessible simultaneously for a period. To do this, I've added the new domain name as a ServerAlias of the existing domain name in the Passenger Virtual Host config. I can now Browse the Rails app using both the legacy url, and the new url from any of Safari, Chrome, Firefox, or Internet Explorer. I can also 'HTTP post' updates to the Rails app using Safari, Chrome, or Firefox. All good. Except, attempts to post updates from Internet Explorer result in the Rails app rejecting the update, The Rails app log contains the message, ActionController::InvalidAuthenticityToken (ActionController::InvalidAuthenticityToken): I have other domains & aliases working just fine on this same machine. Any suggestions as to what is causing the Rails app to reject posts from IE would be appreciated.

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• Puppet variables best practice, generalise or specialise?

  - by Andrei Serdeliuc

  I'm trying to figure out which things should be in git within the puppet manifest and which should be in env vars like FACTER_my_var and use that in the manifest instead. Scenario: you are deploying 3 php apps and you've already built all the layers up to the app in other manifests (base system, php extensions, users, etc), and all that's left is installing the correct app (from an apt repo) and creating a vhost. I'm tempted to have something along the lines of: apache::vhost { $::project_hostname: priority => '10', port => '80', docroot => $::project_document_root, logroot => "/var/log/apache2/${$::project_name}", serveradmin => '[email protected]', require => Package[httpd], ssl => false, override => 'all', setenv => ["APP_KERNEL dev"] } This would run on each server, and the FACTER_project_* vars would be set on a per server basis. An obvious restriction of this would be that you can't run more than one app with this specific example. Or would you rather have project_x.pp, project_y.pp which have hardcoded paths and names?

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• Python module: Trouble Installing Bitarray 0.8.0 on Mac OSX 10.7.4

  - by Gabriele

  I'm new here! I have trouble installing bitarray (vers 0.8.0) on my Mac OSX 10.7.4. Thanks! ('gcc' does not seem to be the problem) Last login: Sun Sep 9 22:24:25 on ttys000 host-001:~ gabriele$ gcc -version i686-apple-darwin11-llvm-gcc-4.2: no input files host-001:~ gabriele$ Last login: Sun Sep 9 22:18:41 on ttys000 host-001:~ gabriele$ cd /Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/bitarray-0.8.0/ host-001:bitarray-0.8.0 gabriele$ python2.7 setup.py installrunning install running bdist_egg running egg_info creating bitarray.egg-info writing bitarray.egg-info/PKG-INFO writing top-level names to bitarray.egg-info/top_level.txt writing dependency_links to bitarray.egg-info/dependency_links.txt writing manifest file 'bitarray.egg-info/SOURCES.txt' reading manifest file 'bitarray.egg-info/SOURCES.txt' writing manifest file 'bitarray.egg-info/SOURCES.txt' installing library code to build/bdist.macosx-10.6-intel/egg running install_lib running build_py creating build creating build/lib.macosx-10.6-intel-2.7 creating build/lib.macosx-10.6-intel-2.7/bitarray copying bitarray/__init__.py -> build/lib.macosx-10.6-intel-2.7/bitarray copying bitarray/test_bitarray.py -> build/lib.macosx-10.6-intel-2.7/bitarray running build_ext building 'bitarray._bitarray' extension creating build/temp.macosx-10.6-intel-2.7 creating build/temp.macosx-10.6-intel-2.7/bitarray gcc-4.2 -fno-strict-aliasing -fno-common -dynamic -isysroot /Developer/SDKs/MacOSX10.6.sdk -arch i386 -arch x86_64 -g -O2 -DNDEBUG -g -O3 -I/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c bitarray/_bitarray.c -o build/temp.macosx-10.6-intel-2.7/bitarray/_bitarray.o unable to execute gcc-4.2: No such file or directory error: command 'gcc-4.2' failed with exit status 1 host-001:bitarray-0.8.0 gabriele$

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• Best shortcut in Total Commander

  - by life-warrior

  So, what's your favourite TC shortcut or shortcut combination ? Which one do you use and for what purpose ? Among my most often used: Ctrl-Left ( or Ctrl-Right ) - open archive or folder under cursor in opposite tab. Ctrl-Shift-Enter, Alt-F8, Ctrl-X - copy full file path to clipboard. Shift-F6, Shift-End(if needed), Ctrl-C - copy only file name w/o path. Select files, Ctrl-M - multi-rename, for example remove "DVDrip" from file names. Ctrl-\ - go to root directory. Ctrl-D, - go to directory with highlighted letter specified. For example, name a downloads directory "&Downloads" in favourites, and the letter after ampersand will be highlighted. Alt-F7, feed to listbox, Ctrl-A, Mark(menu)-Save selection to file - creates a file with all files and directories inside current, with full path. Ctrl-[3-6] - sort files by name(3), extension(4), date(5), size(6). For example, Sort by name, when you need movies and soundracks with the same name and different extension to group them together. Sort by extension, when you need to find EXEs in Windows directory. Sort by Date, when you need to find the latest file downloaded in your dir. Sort by size, when you need to delete the largest files for free space.

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• Automated Linux VMs on Hyper-V 2012

  - by Mick

  I have a requirement to create a ton of linux VMs for our customers (we run managed infrastructure) on Hyper-V 2012 in the coming months and I have an issue with automating it. Here is how I need it to work: User accesses their web page and creates a VM. VM is created with a unique IP and name User logs in over SSH I know Hyper-V quite well and can work with powershell and am a C# programmer so the development side of things is taken care of. I also know enough about Linux to be at least competent: I have used it on and off for a number of years but not done anything Enterprise-level with it. All this can be done easily by manual processes but I need to be able to script or program this to automate it as there could be hundreds of them being created but I don't know how. My first thought is to have a database with random-generated names and IPs already created but I don't know how to get a Linux VM to boot up and grab one from the database... I suppose a Kickstart script would take care of it but I don't know what to do from there. Here is what is bouncing around in my head: Create a std linux build. - Easy to do Someone clicks "Create VM" and I pull a name and IP from the database and write it to a kickstart script. - Easy to do I could then open the template VHDX file and copy in the script and then save it. - Not sure if possible User boots up new VM and the kickstart script gives it the name and IP I assigned it. My problem is that I don't know how to open a VHDX file and insert a kickstart script into it... can't figure it out. I am reaching here and this solution may be miles off... I am more used to creating Windows VMs with scripts and so on which i am more familiar with... any help would be appreciated. Thanks Mick

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• grep command is not search the complete pattern

  - by Sumit Vedi

  0 down vote favorite I am facing a problem while using the grep command in shell script. Actually I have one file (PCF_STARHUB_20130625_1) which contain below records. SH_5.55916.00.00.100029_20130601_0001_NUC.csv.gz|438|3556691115 SH_5.55916.00.00.100029_20130601_0001_Summary.csv.gz|275|3919504621 SH_5.55916.00.00.100029_20130601_0001_UI.csv.gz|226|593316831 SH_5.55916.00.00.100029_20130601_0001_US.csv.gz|349|1700116234 SH_5.55916.00.00.100038_20130601_0001_NUC.csv.gz|368|3553014997 SH_5.55916.00.00.100038_20130601_0001_Summary.csv.gz|276|2625719449 SH_5.55916.00.00.100038_20130601_0001_UI.csv.gz|226|3825232121 SH_5.55916.00.00.100038_20130601_0001_US.csv.gz|199|2099616349 SH_5.75470.00.00.100015_20130601_0001_NUC.csv.gz|425|1627227450 And I have a pattern which is stored in one variable (INPUT_FILE_T), and want to search the pattern from the file (PCF_STARHUB_20130625_1). For that I have used below command INPUT_FILE_T="SH?*???????????????US.*" grep ${INPUT_FILE_T} PCF_STARHUB_20130625_1 The output of above command is coming as below PCF_STARHUB_20130625_1:SH_5.55916.00.00.100029_20130601_0001_US.csv.gz|349|1700116234 I have two problem in the output, first is, only one entry is showing in output (It should contain two entries) and second problem is, output contains "PCF_STARHUB_20130625_1:" which should not be came. output should come like below SH_5.55916.00.00.100029_20130601_0001_US.csv.gz|349|1700116234 SH_5.55916.00.00.100038_20130601_0001_US.csv.gz|199|2099616349 Is there any technique except grep please let me know. Please help me on this issue.

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• System Slow After Uprading Ubuntu

  - by Aragon N

  I have an Ubuntu network machine which has release of 10.04.1 LTS Lucid. On this system I have Apache, PostgreSQL and django. For some app. development I have to install PGP and php-curl. Due to being on network, I have exported a VMware machine to the Internet and firstly I have upgraded the system and then installed php5 packages on it. I don't know is it all about django or apache configuration. Maybe some Apache settings had changed. In this case in apache where I have to look at ? After all replacing it with its old place, I see that the new system query is slow according to another. Old system query time : 140 ms New system query time : 9.11 s I have checked /etc/network interface and it seems there is no problem. I have checked /etc/resolv.conf and it seems OK I have checked /etc/nsswitch.conf and only host section is different from old one which old system has hosts: files mdns4_minimal [NOTFOUND=return] dns mdns4 and then I have checked time host -t A services.myapp.com and I got real 0m0.355s user 0m0.010s sys 0m0.020s and I have checked apache2 HostnameLookups : find /etc/apache2/ -type f | xargs grep -i HostnameLookups It returned : /etc/apache2/apache2.conf:# HostnameLookups: Log the names of clients or just their IP addresses /etc/apache2/apache2.conf:HostnameLookups Off and now what can I have to check for boosting my system as before?

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• Copy a website and preserve the file & folder structure

  - by DrStalker

  I have an old web site running on an ancient version of Oracle Portal that we need to convert to a flat-html structure. Due to damage to the server we are not able to access the administrative interface, and even if we could there is no export functionality that can work with modern software versions. It would be enough to crawl the website and have all the pages & images saved to a folder, but the file structure needs to be preserved; that is, if a page is located at http://www.oldserver.com/foo/bar/baz/mypage.html then it needs to be saved to /foo/bar/baz/mypage.html so that the various Javascript bits will continue to function. None of the web crawlers I've found have been able to do this; they all want to rename the pages (page01.html, page02.html etc) and break the folder structure. Is there any crawler out there that will recreate the site structure as it appears to a user accessing the site? It doesn't need to redo any of teh content of the pages; once rehosted the pages will all have the same names they did originally so links will continue to work.

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• apache: can't renew ssl certificate

  - by Caballero

  I have Godaddy SSL certificate for one website on my dedicated server running Centos 5.3 / Apache 2.2.3. I have renewed certificate on Godaddy recently, however now it's showing as expired on my website. I've re-keyed certificate since and reuploaded domain.key, domain.crt and bundle.crt (example file names) files to the server, restarted apache, but the sertificate still shows as expired. I'm running out of clues. I've tried replacing content of .crt files with jiberish and restart apache - it's still showing that certificate is expired, even though it shouldn't be picked up at all. I eventually rebooted dedicated server, still no luck. I'm using free SSL check tool http://www.digicert.com/help/ which clearly shows all the green checks except one - certificate is expired. Has someone any idea what might be causing this? Could there be some kind of caching going on here? UPDATE: after running openssl x509 -in domain.crt -noout -enddate I'm getting this output: notAfter=Jun 2 08:16:51 2013 GMT So I asume this means I have the right certificate on the server and yet the old expired one shows on the web...

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• First web server questions

  - by Graeme

  Hi there, Just looking for some help/suggestions with this. I require my own server for an upcoming project that will be hosting users websites. I want to build a control panel the user can log into and modify their website which will be stored elsewhere on the server. This all seems easy enough, It's just managing domains and emails that confuse me. What should I look for to manage domain names and point them to the correct website and also what would be the best way to manage email accounts/set up new ones etc. I want to avoid cPanel/WHM if possible, I'm looking to control most things through the control panel I will be building. So any suggestions on this would be useful as well, as I will be wanting to add email accounts through php (Can be done using a shell I assume?). I will also be wanting to measure bandwidth used on the websites contained in each users directory, any suggestions on making this possible? I'm really looking for some suggestions on what software to use to set this up, any advice would be really helpful! Thanks, Graeme

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• grep --color=auto with -i option disables the matching text color, why?

  - by emptyset

  I was messing around with grep and put this in my .zshenv: export GREP_OPTIONS="--color=auto" export GREP_COLORS='mt=1;34' I was bonking my head on the keyboard and changing GREP_COLORS around for a minute trying to figure out why the folder colors were working, but the matching text wasn't. I was doing this: $ grep -R -n -i -e "functionFoo\(" --include=*.cs --exclude-dir=Logs * The line number and file names were set with the default colors, but the matching text wasn't. After spending way too much time, I thought to do this: $ grep -R -n -e "functionFoo\(" --include=*.cs --exclude-dir=Logs * (I removed the -i option.) That's all it took to get the matching text to correctly show up in bold blue. This is a Cygwin on Vista setup, with rxvt running zsh. Any idea why grep colors would break on specifying a case-insensitive match? Update: Under cygwin 1.7, it's a little bit better - case insensitive search works correctly, but it only highlights the word that matches the expression exactly. In other words, "FunctionFoo" highlights "FunctionFoo" but not "functionFoo" and vice versa. Probably a grep issue so I'll be submitting it to that list.

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• A lots of Apache processes are using my CPU uses always more than 70%

  - by Barkat Ullah

  I am running a plesk panel in 1and1. I have 120 sites running and all are using pligg cms, each site has 600 visitors per day. Please see the details of my server below: HDD-1000GB RAM-16GB Processor-6 Core I always see a lot of apache processes running in my # top view, so the server seems overloaded. If I can reduce the amount apache processes I think the server will be ok. But I don't know why too many apache processes are running. Please see the link below for the screenshot of my # top view: http://dl.dropbox.com/u/26967109/%23Top-2.jpg Sometimes I saw too many connection error in my plesk control panel, so I added the below line in my [mysqld] section: set-variable=max_connections=416 But I didn't find a solution yet. I have also added maxclients and serverlimit 416 in the config /etc/httpd/conf/httpd.conf But no solution yet. I am researching around more than 7 days but don't get any solution. Please help me to solve the problem. In peak hours my sites are taking too much time to load, but off-peak hour it is ok. Please help me to find out the actual problem.

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• dns in a small network with router and AD domain

  - by Felix

  I have a small office network with router (running OpenWRT), Windows Domain Controller (used to be 2008R2; I just backed it up and upgraded to 2012), about a dozen AD clients (3 server and windows workstation) and several non-AD clients (network printer, PBX). The problem is that the clients can't access servers by name (only by IP). I tried all kind of permutations. Right now domain controller runs DNS server for all desktops; but unless I put an entry in hosts file - I can only get by IP. I have router as DHCP server (since not all devices are on AD); and except for Domain Controller all IP addresses, including "static", are assigned by the router. Most frustrating, some servers sometimes just work! for example, I can often get to the Linux box by name (it is part of Domain using Beyond Trust Integration Services); but I can never get to SQL Server box. Seems like non-domain devices see more names than domain members... This network should be fairly typical; but I couldn't get any guidance about how to set up DNS/DHCP service to make all nodes happy. The closest is this question, but still it's different! Thanks

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• 553-Message filtered - HELO Name issue?

  - by g18c

  I am having major issues sending from my SBS2011 machine to Message labs server-13.tower-134.messagelabs.com #553-Message filtered. Refer to the Troubleshooting page at 553-http://www.symanteccloud.com/troubleshooting for more 553 information. (#5.7.1) ## I have changed the IP and hostnames from the below. I am not on any IP or domain blacklists. I have setup SPF (which includes mailchimp servers): v=spf1 mx a ip4:95.74.157.22/32 a:remote.mydomain.com include:servers.mcsv.net ~all I am sure i have setup my HELO names correctly under the Exchange Management console, sending a test email from the SBS server and looking at the header shows the following: X-Orig-To: [email protected] X-Originating-Ip: [95.74.157.22] Received: from [95.74.157.22] ([95.74.157.22:52194] helo=remote.mydomain.com) by smtp50.gate.ord1a.rsapps.net (envelope-from <[email protected]>) (ecelerity 2.2.3.49 r(42060/42061)) with ESMTP id 11/90-10010-E529C835; Mon, 02 Jun 2014 11:04:09 -0400 Received: from MYSBSSVR.mydomain.local ([fe80::3159:95a6:23f:1bef]) by MYSBSSVR.mydomain.local ([fe80::3159:95a6:23f:1bef%10]) with mapi id 14.01.0438.000; Mon, 2 Jun 2014 19:03:56 +0400 Is is the main helo name there OK and do i need to worry about the second Received block where the MYSBSVR.mydomain.local is mentioned? I have asked the ISP to set the reverse DNS for my IP to remote.mydomain.com but they have instead put remote.MYDOMAIN.com - would this case cause HELO lookups to classify this as not matching? Anything else I can do to find out why i am being filtered?

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• Hadoop is not able to find JAVA_HOME properly

  - by Shekhar

  I am trying to run hadoop my Ubuntu OS. I have set JAVA_HOME variable in ~/.bashrc file to /usr/lib/jvm/jdk1.7.0_01/ but when I run hadoop namenode -format command it fails with following errors : shekhar@ubuntu:/usr$ hadoop namenode -format Warning: $HADOOP_HOME is deprecated. /host/Shekhar/Softwares/hadoop-1.0.0/bin/hadoop: line 321: /usr/jdk1.7.0_01/bin/java: No such file or directory /host/Shekhar/Softwares/hadoop-1.0.0/bin/hadoop: line 387: /usr/jdk1.7.0_01/bin/java: No such file or directory hadoop tries to locate java command at /usr/jdk1.7.0_01/bin/ path. Clearly somehow it missed /lib/jvm folder. I am not able to understand why and how this is happening. my echo $PATH command gives following output : shekhar@ubuntu:/usr$ echo $PATH /usr/lib/jvm/jdk1.7.0_01/bin:/usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/lib/jvm/jdk1.7.0_01/bin:/host/Shekhar/Softwares/hadoop-1.0.0/bin If I run which java command I get following output : shekhar@ubuntu:/usr$ which java /usr/lib/jvm/jdk1.7.0_01/bin/java and echo $JAVA_HOME returns following output : shekhar@ubuntu:/usr$ echo $JAVA_HOME /usr/lib/jvm/jdk1.7.0_01 I would like to know why hadoop is taking JAVA_HOME path incorrectly. Please help...

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• Upstart multiple instances of service not working

  - by Dax

  I started playing with MongoDB on Lucid. Now I would like to run a DB and Config server on the same box. They both use the same binary to launch, but with different config files and running on different ports. All directories for log and lib is split so one goes to mongodb and the other to mongoconf. Each process can be started without any problems on their own. start mongodb stop mongodb start mongoconf stop mongoconf But if I try to start both, the second one would just start and exit. Using 'initctl log-priority debug' I got the following in the logs. Jan 6 12:44:12 mongo4 init: event_finished: Finished started event Jan 6 12:44:12 mongo4 init: job_process_handler: Ignored event 1 (1) for process 5690 Jan 6 12:44:12 mongo4 init: mongoconf (mongoconf) main process (5690) terminated with status 1 Jan 6 12:44:12 mongo4 init: mongoconf (mongoconf) goal changed from start to stop Jan 6 12:44:12 mongo4 init: mongoconf (mongoconf) state changed from running to stopping man 5 init shows that you can use instance names to differentiate the two. I tried using 'instance mongoconf' in the on upstart script and 'instance mongodb' in the other one, and it still fails. I can manually start the other process, so there is definitely no conflicts on port numbers or directories. Any ideas on what to try or how to get output on why it is 'terminated with status 1'? Thanx

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• Broken Python installation on CentOS 5.8

  - by Beckett

  I already searched for solution to my problem via Google and stackoverflow's search facility, but haven't found anything related specifically to it. Here's the problem: I needed python 2.7.3 on CentOS 5.8 machine which has only python 2.4.3 preinstalled. Also neither there's the suitable version in it's repositories nor I can upgrade installed version. That's why I decided to build python from source code. But I've made a mistake: instead of make altinstall I did make install thus changing default version of the current installation. It was before I found this article - How to install Python 2.7.3 on CentOS 6.2 . I guess 5.8 and 6.2 versions aren't different to the extent this article is inapplicable. After installation of new python version I installed pip, but once I tried to invoke it, I got "No module named pkg_resources" error. In order to solve this issue I installed setuptools from repository. But it had only led to another error: "Distribution Not Found". My final step was to follow the guide I posted the link to, but I was unable to perform last step: easy_install-2.7 virtualenv command threw "-bash: /usr/local/bin/easy_install-2.7: .: bad interpreter: Permission denied" error. Now when I try to invoke pip or pip-2.7 both commands raise the same error with different names of binaries after "-bash:". Is there any way to fix this problem, so I could install new python version (2.7.3) alongside with the preinstalled one (2.4.3) according to the guide? Any help will be appreciated. P.S.: yum is working fine, although it needs python to function, so I hope the damage I unknowingly caused isn't very severe. Also I'm not a native English speaker, so I apologize for possible occasional grammatical and/or spelling errors.

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• How to create hash or yml from top level attributes values of node?

  - by Sarah Haskins

  I have a chef recipe where I want to take all of the attributes under node['cfn']['environment'] and write them to a yml file. I could do something like this (it works fine): content = { "environment_class" => node['cfn']['environment']['environment_class'], "node_id" => node['cfn']['environment']['node_id'], "reporting_prefix" => node['cfn']['environment']['reporting_prefix'], "cfn_signal_url" => node['cfn']['environment']['signal_url'] } yml_string = YAML::dump(content) file "/etc/configuration/environment/platform.yml" do mode 0644 action :create content "#{yml_string}" end But I don't like that I have to explicitly list out the names of the attributes. If later I add a new attributes it would be nice if it automatically was included in the written out yml file. So I tried something like this: yml_string = node['cfn']['environment'].to_yaml But because the node is actually a Mash, I get a platform.yml file like this (it contains a lot of unexpected nesting that I don't want): --- !ruby/object:Chef::Node::Attribute normal: tags: [] cfn: environment: &25793640 reporting_prefix: Platform2 signal_url: https://cloudformation-waitcondition-us-east-1.s3.amazonaws.com/... environment_class: Dev node_id: i-908adf9 ... But what I want is this: ---- reporting_prefix: Platform2 signal_url: https://cloudformation-waitcondition-us-east-1.s3.amazonaws.com/... environment_class: Dev node_id: i-908adf9 How can I achieve the desired yml output w/o explicitly listing the attributes by name?

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• No Homegroup Computers, Network Troubleshooter Fails

  - by Mokubai

  I have a problem with my Windows 7 Homegroup, between two Windows 7 Home Premium machines. On one machine I get this: The other machine in the Homegroup is perfectly happy and is able to see and browse this faulty machine as if there is nothing wrong. The Network and Sharing Center shows that I am joined to a Homegroup on my "Home" network and nothing is out of the ordinary. I have tried leaving the Homegroup and rejoining/recreating it several times and that does nothing at all. Normal browsing to machine names and looking through folders seems to work, but it's a much more clunky way to get stuff compared to the convenience of the Homegroup facilities. Starting the troubleshooter detects some problems with a "Peer Networking" (PNRpr or something like that) service not starting but fails to fix anything. Sure enough when I go to view the services via Control Panel - Administrative Tools - Services I see that both the "Peer Name Resolution Protocol" and "Peer Networking Grouping" services are stopped. Attempting to start the "Peer Networking Grouping" gives an error that a dependency service will not start, the only service it is dependant on is the "Peer Name Resolution Protocol" so I try to start that and I get an error saying that the "service could not start due to error 0x80630801" This has happened before and I have fixed it then by using System Restore and restoring the machine to a week before when I knew it had all worked. This time though I cannot remember when I last used the Homegroup from this machine and I've installed quite a bit so I don't want to go fumbling through restore points trying to find one that works... Can anyone tell me if there is a way to reset things so that this machine is able to use the Homegroup again?

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• Avoid "privacy pitfalls" in Windows and Linux?

  - by Somebody still uses you MS-DOS

  I have a Windows and a Linux machine. In Windows, everytime I visit a site, a lot of cache/history files are created on my machine. I setup my Firefox to don't save anything. ...but Windows saves a lot of "temp" files, some strange files I opened in registry (like video names). Each video I open in VLC is shown in "Last shown videos". In windows, all files opened can be found at "Recent opened files" as well. A lot of these privacy configurations can be tweaked (VLC and "Recent opened files" in Windows) - it's a PITA doing it individually, but it's possible - but there isn't a guide to these "internal" privacy traces that are left on Windows installation. In Linux, I just know there are these problems in app level (like VLC). My question is: is there a complete guide to avoid undesirable traces of what I did/watch/used in my Windows machine? (Delete everytime the PC is restarted, or even avoiding recording these info at all) Is there a website with configuration guides to different types of software? I would like to know about Linux privacy pitfalls as well.

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• Colorizing your terminal and shell environment?

  - by Stefan Lasiewski

  I spend most of my time working in Unix environments and using Terminal emulators. I try to use color on the commandline, because color makes the output more useful and intuitive. What are some good ways to add color to my terminal environment? What tricks do you do? What pitfals have you encountered? Unfortunately, support for color is wildly variable depending on terminal type, OS, TERM setting, utility, buggy implementations, etc. Here's what I do currently, after alot of experimentation: I tend to set 'TERM=xterm-color', which is supported on most hosts (but not all). I work on a number of different hosts, different OS versions, etc. I'm trying to keep things simple and generic, if possible. Many OSs set things like 'dircolors' and by default, and I don't want to modify this everywhere. So I try to stick with the defaults. Instead tweak my Terminal's color configuration. Use color for some unix commands (ls, grep, less, vim) and the Bash prompt. These commands seem to the standard "ANSI escape sequences" I've managed to find some settings which are widely supported, and which don't print gobbledygook characters in older environments (even FreeBSD4!) (For the most part). From my .bash_profile ### Color support # The Terminal application typically does 'export TERM=term=color' # Some terminal types will print Black, White & underlined with these settings. OS=`uname -s` case "$OS" in "SunOS" ) # Solaris9 ls doesn't allow color, so use special characters instead. LS_OPTS='-F' ;; "Linux" ) # GNU tools supports colors! See dircolors to customize colors export LS_OPTS='--color=auto' # Color support using 'less -R' alias less='less --RAW-CONTROL-CHARS' alias ls='ls ${LS_OPTS} export GREP_OPTIONS="--color=auto" ;; "Darwin"|"FreeBSD") # Most FreeBSD & Apple Darwin supports colors # LS_OPTS="-G" export CLICOLOR=true alias less='less --RAW-CONTROL-CHARS' export GREP_OPTIONS="--color=auto" ;; esac

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• How to use AND/OR Building Block content in a Word 2007 template

  - by JimmyJames

  I am creating a Schedule of Work template and am successfully using Developer Tab and Quick Parts to allow user to choose content on an "either/or" basis: either A; OR B; OR C; etc., essentially choose one option from many. One Building Block control, one paragraph, nice and clean. Now what I need to do but cannot seem to figure out, is how to allow user to choose content on an "and/or" basis: either A AND B; A OR B AND C; B AND D AND E OR F; etc., essentially choose several options from many on a variable basis. One Building Block control, maybe one paragraph, maybe three or more paragraphs. Not so clean. I thought of building choice options for all possible paragraph combinations, but I can have as many as 7 or 8 different paragraphs, and that solution quickly becomes unworkable. Multiple controls--some of which will be left unused doesn't work either, since I cannot find an easy way to have a "Choose or Delete" control that actually deletes if "Delete" is chosen. Recommendations are most welcome.

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• Code to update HyperV Export file

  - by Andy Schneider

  I am using the HyperV Module from Codeplex to do a "config only" export from a 2008R2 Hyper-V server. In order to import the configuration on another HyperV server, I need to edit the value of CopyVMStorage in the EXP file. This file is an XML file. I wrote the following code in PowerShell to do the update for me. The variable $existing is the existing exp file. $xml = [xml](get-content $existing) $xpath = '//PROPERTY[@NAME ="CopyVmStorage"]' foreach ($node in $xml.SelectNodes($xpath)) {$node.Value = 'TRUE'} $xml.Save($existing) This code makes the correct changes to the XML. However, when I go to import the file on the Hyper-V server, I get an error that says the file format is incorrect. I am wondering if the encoding of the file is incorrect or if there is something else going on. If I edit the file manually in wordpad, it imports without an issue. The filename is a GUID with a .exp extension, and it appears that the file name is too long for notepad to open. Notepad throws an error trying to open the file, which is why I went with WordPad. I have noticed that the file that is updated with PowerShell comes out formatted whereas the raw file is xml all bunched together with no whitespace. Any ideas on what "file format" means in this HyperV error message and how I might be able to use my code to automate this change in the XML without changing the file format?

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• How do I collect SNMP readings from intermittently-connected sites?

  - by Luke404

  I am collecting SNMP data on-site for a number of systems, currently using Cacti. These systems are spread on a number of sites that aren't always connected to internet, but I also need to centralize the data on a single system (datacenter housed server) and get graphs out of it. If I directly poll remote systems with a centralized Cacti I'd loose data when a site is not connected to internet. I should record data on-site (I have a server at each site and I can run whatever I want on it) and then 'sync' everything to the central system. One hack could be a cacti or directly an rrdtool on site and then periodically rsync RRD data to the central Cacti system, but that doesn't sound like a 'clean' solution: every RRD would have to be defined at both places and rsync scripts setup with the specific file names. Can you suggest a better solution? Cacti is not a requirement but I'd like to use something like that on the central system. On-site systems need only to collect data I don't need to graph it there or manage users rights to view data and stuff like that, users will only access the centralized system.

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• What are the requirements for Windows Remote Assistance over Teredo?

  - by Jens

  I try to get the Windows 7 (or Vista) remote assistance feature to work, without using UPnP on the novices computer. After enabling Teredo on the expert's computer (that is in a corporate network, and therefore has teredo disabled by default), I tried to connect to the novice both using Easy Connect and the invitation file with no success. My triubleshooting included the following (so far). A connection to the novice from my home pc was successful, hinting at a misconfiguration on the experts side. Both computers have a "qualified" connection to the Teredo Server. Both computers have a valid Teredo IP, access to the Global_ PNRP cloud and can resolve names registered with PNRP on the other computer. The expert can resolve the PNRP Id automatically generated with an Easy Connect help request Both computers can ping the other's PNRP name. Both computers can ping the other's Teredo IP Address using ping -6 Now, I am a little stumped. I expected Remote Assistance to work at this point, since my corporate firewall has no Teredo filtering. What could RA cause not to work in this setting? Thanks in advance!

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