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  • Xen and Ubuntu?

    - by wag2639
    How does one properly approach having Ubuntu servers on a Xen hypervisor? I don't have any experience with RAID or Xen other than from a theoretical level. Additional requirements: Use with mdadm Software RAID 5 (can be on separate disks) that multiple instances with access Paravirtualized Ubuntu Server guests instances Possible ideas for now: Ubuntu host (dom0) with ubuntu-xen-server package (this purportedly isn't supported) dom0 host will "own" RAID 5 partition More Ubuntu servers as guests Citrix XenServer bare-metal host XenServer will own RAID Citrix XenServer bare-metal host Ubuntu guest instance creates and owns RAID Questions and concerns: Can Ubuntu be used as a dom0 Xen host? Can XenServer install packages such as mdadm and create a partition? Can multiple guest access (R + W) to the same data partition (RAID)? Note: since it may have a bearing on support, I'm referring to Ubuntu Server 10.04

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  • UsrClass.dat does not load, any ideas on what to check?

    - by Bob Simmons
    I have an odd problem where one of my users' UsrClass.dat hive does not load, which causes .NET ClickOnce applications to fail to start. They are one of several users on a Windows 2000 terminal server, all the others have no problem. Nothing is mentioned in any logs. I can manually load the hive to the correct HKEY_USERS\..._Classes location using REGEDT32, which works around the problem, but I've no idea what could be causing this in the first place. Any ideas what to check here, or any diagnostic tools or procedures that would help?

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  • Storing data offline with javascript

    - by Walker
    My question is about storing data offline and potentially whether I will need to bring in an outside programmer or could this be learned within a few weeks? The website I am working on will have an interface where users will login and go through a series of quizzes in the form of checkbox, drop down menus, and others. Each page/quiz area could have 20-100 total checkboxes in a series of 3-5 rows because of the comprehensive nature of course. This I can do - I know how to code the quiz and return a correct or incorrect answer based on each individual checkbox and present a cumulative score (ie: you got 57% correct). The issue lies in the fact that I would like to save the users results and keep them informed of their progress. When they complete all of the quizzes, I would like to have a visual output of their performance in each area. Storing the output from their results offline is where I think I may run into a problem with my lack of coding experience. I would also like to have a sidebar with their progress of each section (10-15) with a green percentage completion bar or a % correct which would draw from this. I have never had to code something that stores information like this offline - so back to my question - would it be better to learn the language needed or bring in a coder/developer for the back end stuff.

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  • outlook freezes on splash screen - loading profile

    - by sammarcow
    I have a user with a frustrating application crash issue without Outlook: Windows 7 x64 Outlook 2010 crashes on the splash screen with the message "loading profile." I have deleted the users .ost file in "..\AppData\Local\Microsoft\Outlook\" and this crash occurs for multiple users including those with administrator privileges. I have also tried running outlook at the command prompt as an admin with the /safe command-line switch. I tried the repair utility in "programs and features by clicking Change after selecting Microsoft Office:" ~~ Microsoft office failed to successfully repair your product . I tried to uninstall Microsoft Office ~~ Microsoft Office failed to successfully uninstall this product. I am trying to avoid reimaging the machine for obvious reasons. Is there anything else I can try or insight any one has on this issue?

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  • Add domain user as local admin in Windows 7 using VPN to connect to domain

    - by kev
    I am rebuilding my work computer from scratch and need to add my domain user as a local admin on my computer. I have successfully added my PC to the domain, but I cannot add my domain user account to the local admins. I have tried to do the following: Connect to the work domain using a Windows VPN Add my computer to the work domain Start right click on Computer Manage - go to Users and Groups right click on Administrators group and add my domain user The problem is that after adding my domain user to the Administrators group, I don't see my domain user under the Local Users group. When I try to log on as my domain user I get the following error message: There are currently no logon servers available to service the logon request Any ideas?

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  • Windows Web Server in DataCenter Authenticate with AD in Office

    - by Viper Venom
    Hi, We would like to have put a File Server in DataCentre to allow user to upload/download files when they are home. Since we have hundreds of users and would like to let the user to authenticate with the existing AD in our office. Basically, I will setup the IIS server to allow users to list various directories in the File Server based on their user group. For example, Group A will have list the D:\Files\A and the Group B will have list the D:\Files\B ...etc. After some initial study, I found that the PPTP based Site to Site VPN might fit our need to do the authentication part but I still don't have any idea on how to let them upload files to the server. Is there any suggestions such as any better option to do this (either authentication or upload part) or any area I need to be careful of? Thank you in advance.

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  • Prefer class members or passing arguments between internal methods?

    - by geoffjentry
    Suppose within the private portion of a class there is a value which is utilized by multiple private methods. Do people prefer having this defined as a member variable for the class or passing it as an argument to each of the methods - and why? On one hand I could see an argument to be made that reducing state (ie member variables) in a class is generally a good thing, although if the same value is being repeatedly used throughout a class' methods it seems like that would be an ideal candidate for representation as state for the class to make the code visibly cleaner if nothing else. Edit: To clarify some of the comments/questions that were raised, I'm not talking about constants and this isn't relating to any particular case rather just a hypothetical that I was talking to some other people about. Ignoring the OOP angle for a moment, the particular use case that I had in mind was the following (assume pass by reference just to make the pseudocode cleaner) int x doSomething(x) doAnotherThing(x) doYetAnotherThing(x) doSomethingElse(x) So what I mean is that there's some variable that is common between multiple functions - in the case I had in mind it was due to chaining of smaller functions. In an OOP system, if these were all methods of a class (say due to refactoring via extracting methods from a large method), that variable could be passed around them all or it could be a class member.

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  • How to handle fine grained field-based ACL permissions in a RESTful service?

    - by Jason McClellan
    I've been trying to design a RESTful API and have had most of my questions answered, but there is one aspect of permissions that I'm struggling with. Different roles may have different permissions and different representations of a resource. For example, an Admin or the user himself may see more fields in his own User representation vs another less-privileged user. This is achieved simply by changing the representation on the backend, ie: deciding whether or not to include those fields. Additionally, some actions may be taken on a resource by some users and not by others. This is achieved by deciding whether or not to include those action items as links, eg: edit and delete links. A user who does not have edit permissions will not have an edit link. That covers nearly all of my permission use cases, but there is one that I've not quite figured out. There are some scenarios whereby for a given representation of an object, all fields are visible for two or more roles, but only a subset of those roles my edit certain fields. An example: { "person": { "id": 1, "name": "Bob", "age": 25, "occupation": "software developer", "phone": "555-555-5555", "description": "Could use some sunlight.." } } Given 3 users: an Admin, a regular User, and Bob himself (also a regular User), I need to be able to convey to the front end that: Admins may edit all fields, Bob himself may edit all fields, but a regular User, while they can view all fields, can only edit the description field. I certainly don't want the client to have to make the determination (or even, for that matter, to have any notion of the roles involved) but I do need a way for the backend to convey to the client which fields are editable. I can't simply use a combination of representation (the fields returned for viewing) and links (whether or not an edit link is availble) in this scenario since it's more finely grained. Has anyone solved this elegantly without adding the logic directly to the client?

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  • Win2008 - restrict VPN user permissions

    - by Sebas
    Windows 2008 R2 SP1 Foundations file server with no AD, only workgroup sharing some folders, and now a RRAS server. Shared folders are open to everyone in the office (XPs and Sevens) without accounts/passwords, but I was thinking about partially limiting access to the new "VPNuser" account. I'm new to Windows Server and its permissions settings: I thought about denying access to vpnuser through NTFS rights in some folders. It doesn't work, but now I'm guessing that the vpnuser is not considered as a logged user (doesn't appear as such) and is considered a "guest", like the rest of people connecting in the office. I say that because of this: http://social.technet.microsoft.com/Forums/windowsserver/en-US/ff6d3726-ff41-4d3f-9d97-5361af0206dd/vpn-users-on-server-shows-as-guest?forum=winserverNIS Also, because when I create a txt file using the VPN connection, owner field shows in description as "guest". Am I right? How can I set different rights for the VPNuser from the rest of "guest" users in the office?

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  • Transport rule - Exchange 2010

    - by Jeff
    I have two transport rules on my exchange server. One is: > Apply rule to messages: From users that are 'outside the organization' > and when any of the recipients in the To or Cc fields is a member of > '[email protected]' Forward the messageto sender's manager > for moderation The second is: Apply rule to messages from a member of '[email protected]' and sent to users that are 'outside the organization' forward the message to the sender's manager for moderation. nointernetmail is a distribution group, and each user has the managed by set to there local manager. However these transport rules do not work, internet mail is still sent and received without issue. I have read various tutorials / articles of how to do this on sites such as msexchangeblog and even microsoft technet, however even after following the guides I am still unable to have this function properly. Any help is appreciated.

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  • $PATH is driving me nuts

    - by Chris4d
    OK, apologies if this is something dumb, but I'm running out of ideas. Goal: prepend /usr/local/bin to $PATH Problem: $PATH won't do what I want or expect How I got here: I want to start learning to program, so I'm getting comfortable messing around under the hood, but don't have a lot of experience. I installed the fish shell (because it's friendly!) using homebrew and set it as my default shell (under system prefs>users & groups>advanced). At some point, I ran brew doctor to see if my installs were all kosher, and it suggested I move /usr/local/bin to the front of $PATH so that I could use my installation of git rather than the system copy. Fine - but between path_helper and fish, something was happening to $PATH that was out of my control, and I could never get the paths arranged in the right way. Environment: OSX 10.8.2, upgraded from 10.7ish, with xcode and devtools installed, plus x11, homebrew, and fish More info: I've set my user's default shell back to bash, and tried a variety of shells thru terminal.app - bash, fish, sh. I moved /usr/local/bin to the top of /etc/paths but it didn't change anything. I looked thru the various config.fish files and commented out stuff that might mess with $PATH, didn't help. I have the following files in /etc/paths.d/: ./10-homebrew containing /usr/local/bin ./20-fish containing /usr/local/Cellar/fish/1.23.1/bin ./40-XQuartz containing /opt/X11/bin I added set +x to my profile and when I start terminal.app I get: Last login: Mon Oct 1 13:31:06 on ttys000 + '[' -x /usr/libexec/path_helper ']' + eval '/usr/libexec/path_helper -s' ++ /usr/libexec/path_helper -s PATH="/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/Cellar/fish/1.23.1/bin:/opt/X11/bin"; export PATH; + '[' /bin/bash '!=' no ']' + '[' -r /etc/bashrc ']' + . /etc/bashrc ++ '[' -z '\s-\v\$ ' ']' ++ PS1='\h:\W \u\$ ' ++ shopt -s checkwinsize ++ '[' Apple_Terminal == Apple_Terminal ']' ++ '[' -z '' ']' ++ PROMPT_COMMAND='update_terminal_cwd; ' ++ update_terminal_cwd ++ local 'SEARCH= ' ++ local REPLACE=%20 ++ local PWD_URL=file://Chriss-iMac.local/Users/c4 ++ printf '\e]7;%s\a' file://Chriss-iMac.local/Users/c4 Chriss-iMac:~ c4$ So it looks like path_helper runs, but then running echo $PATH nets me /usr/bin:/bin:/usr/sbin:/sbin. So, it looks like path_helper isn't even doing what it's supposed to anymore? I'm sure there is some well-defined behavior here that I don't understand, or I borked something while trying to fix it. Please help!

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  • Automatic generate code: "derived work"?

    - by Peregring-lk
    For example, I've GPL software. I'm the author of this GPL software. This GPL software has, between its code, Doxygen comments. These Doxygen comments are written to generate a CC-BY-SA html page, in order to upload this generated documentation in my project website under CC-BY-SA license. But, the Doxygen documentation output is a "derivate work"? After all, this documentation is based on my GPL source code. In this case, the documentation must be GPL. But, I want the documentation is CC-BY-SA, because it is documentation. GFDL doesn't help. GPL code can't become GFDL (the opposite yes). If this output is really a derivate work, I think, creates a strange situation, because, if I distribute my work, the recipient users can't legally distribute the generated documentation: while with my work I can do I want, the users don't, thus, they have to distribute any derivated work with the same license I offer them. What is the solution?

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  • Using mod_speling with multi-level htaccess and rewriterules

    - by michaelcgorman
    We recently switched formats for managing our 301s. For the most part, everything went well, but it seems to have stopped mod_speling from working properly. Here's what we changed: old /var/www/html/.htaccess: RewriteEngine on RewriteBase / # Change SHTML to HTML RewriteRule ^(.*)\.shtml$ $1.html [R=permanent,L] # Change PCF to HTML ('cause, you know, we probably have CMS users like that...) RewriteRule ^(.*)\.pcf$ $1.html [R=permanent,L] # Force WWW subdomain for all requests RewriteCond %{HTTP_HOST} !^www.example.edu$ [NC] RewriteRule ^(.*)$ http://www.example.edu/$1 [R,L] # User accounts are on sun.example.edu RedirectMatch ^/~(.*)$ http://sun.example.edu/~$1 # Remove index.html at the end of URLs RewriteCond %{REQUEST_URI} ^(.*/)index\.html$ [NC] RewriteRule . %1 [R=301,NE,L] Redirect 301 /academics/calendar2012-13.html http://www.example.edu/academics/calendar.html Redirect 301 /academics/departments/ http://www.example.edu/majors/ Redirect 301 /academics/Pre-Medical.pdf http://www.example.edu/academics/Pre-Medicine.pdf Redirect 301 ... new /var/www/html/.htaccess: RewriteEngine on RewriteBase / # Change SHTML to HTML RewriteRule ^(.*)\.shtml$ $1.html [R=permanent,L] # Change PCF to HTML ('cause, you know, we probably have CMS users like that...) RewriteRule ^(.*)\.pcf$ $1.html [R=permanent,L] # Force WWW subdomain for all requests RewriteCond %{HTTP_HOST} !^www.example.edu$ [NC] RewriteRule ^(.*)$ http://www.example.edu/$1 [R,L] # User accounts are on sun.example.edu RedirectMatch ^/~(.*)$ http://sun.example.edu/~$1 # Remove index.html at the end of URLs RewriteCond %{REQUEST_URI} ^(.*/)index\.html$ [NC] RewriteRule . %1 [R=301,NE,L] RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*) 404/$1 And then we added a new file at /var/www/html/404/.htaccess: RewriteEngine on RewriteBase /404 RewriteRule ^academics/calendar2012-13.html$ /academics/calendar.html [R=302,L] RewriteRule ^academics/departments/$ /majors/ [R=301,L] RewriteRule ^academics/Pre-Medical.pdf$ /academics/Pre-Medicine.pdf[R=301,L] RewriteRule ... I do have (Webmin-based) access to the httpd.conf (though we don't want to store all our 301s there, if possible). We're running Apache 2.2.15 on RHEL 6 on a server in our own data center. Like I said, the only problem we're seeing is that mod_speling isn't doing its magic anymore. The new format has so many advantages over the old that we really don't want to go back, but mod_speling is so nice to have that we'd also really like it to work if possible. Any ideas for how we might be able to fix mod_speling?

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  • How to make a text search template?

    - by Flipper
    I am not really sure what to call this, but I am looking for a way to have a "template" for my code to go by when searching for text. I am working on a project where a summary for a piece of text is supplied to the user. I want to allow the user to select a piece of text on the page so that the next time they come across a similar page I can find the text. For instance, lets say somebody goes to foxnews.com and selects the article like in the image below. Then whenever they go to any other foxnews.com article I would be able to identify the text for the article and summarize it for them. But an issue I see with this is for a site like Stack Exchange where you have multiple comments to be selected (like below) which means that I would have to be able to recursively search for all separate pieces of text. Requirements Be able to keep pieces of text separate from each other. Possible Issues DIV's may not contain ids, classes, or names. A piece of text may span across multiple DIVs How to recognize where an old piece of text ends and a new begins. How to store this information for later searching?

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  • User Switching in XFCE 12.04 with LightDM and dumping unneeccesary Gnome libs

    - by user111120
    I'm an elder non-techie Mac-to-Linux convert trying to play the linux tech game by ear, so please be gentle! :) I am running XFCE Ubuntu 12.04 totally on a 8-gig flash drive and it's fantastic. I am starting to run into potential space issues (down to 1.0 gig free from 1.9 gigs since being installed last summer), most likely because of growing Thunderbird mail files, and this prompted my question. I just installed lightDM on my system because I want the ability to switch users in XFCE if I follow instructions on another blog. They advised using LightDM instead of GDM because LightDM doesn't download Gnome libraries. That's great since I need the space, but my question is how can I tell whether I don't already have Gnome libraries installed from other updates and such? And can I minimize having any Gnome libraries? The method for me to switch users entails creating a "fast-user-switch" file in /usr/local/bin; is there any easier way? One last thing so I din't have topen another needless thread; while experimenting I somehow lost the share folder in one of my accounts. Is there any way to get a share folder back? Thanks for any tips! Jim in NYC

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  • Block by file type, but just file extension using MDaemon

    - by Arjun Rajagopalan
    I've had users sending copyrighted files (songs, videos) to each other over email. I blocked the file extensions .mp3 etc. What some users have done is to rename files to .doc etc. I cant block .doc etc filetypes because they are needed for day-to-day work. I'm using MDaemon 12 mailserver, Does anyone know how to make it block these attachments? I've been working on some content scanning for filetype code, but was wondering if there is a already made solution?

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  • Roaming Profiles: Best Practices

    - by Noah Clark
    I want to setup roaming profiles for about 50 users. What is the best way to go about doing this? What are the best practices. I've read about desktops/my Documents being TOO big. How big is too big? We have a few users who keep a lot of media on their machine to listen to throughout the day. I would imagine they have a few gigs of MP3's in their My Documents folder. How do you deal with this? Thanks!

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  • FOSS Development: Who develops the OS-specific packages?

    - by achristi
    I have a couple of FOSS projects. They can be a bit of a pain to get running unless you've got dependencies in place already, which I figure is par for the course for FOSS projects. We know that each free operating system out there has its own package management systems. A few of them, such as homebrew on Mac OS or AUR on Arch linux are very friendly to community contributions. What I am wondering is, who exactly is expected to contribute packages? Primarily I am concerned with the case of small or developing projects, since it's pretty standard for the big projects to be put in there by the OS maintainers. From my perspective, it is something of a chicken-egg problem, because your software will not make its way into a package system if it does not have users, and it is less likely to gain users if it is not easy to install and use. For the sake of discussion, let's assume that the software in question is actually legitimately useful. I can see where people could create crapware or spam and that should obviously be kept out of any package system. So, in summary, whose job is this? Is it spammy for a FOSS software dev to put his own work into various OS package repositories?

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  • Which frontend framework/library should I learn to enhance an existing site? [on hold]

    - by Codemonkey
    I have a large site that I've coded by hand over the last couple of years. It's a sports results service, and allows users to view their results, compare themselves to others, buy photographs, that sort of thing. The code base is fairly substantial, and scarily uses no frameworks or libraries. It's a PHP backend, and a clean & compact frontend. I use the Highcharts library, but other than that all of the JS is my own. I'm not a fan of bulk, even if it is CDN-hosted and heavily cachable. Maybe I need to change my outlook on this? I'm wanting to make some significant changes to the site now, and it seems an appropriate time to enhance my skillset by learning AngularJS, or something else of that ilk. A large part of the site is tables of data, and as just one example of the sort of thing I want to achieve, I'd like to let users add/remove/sort columns better than they currently can. Are any of the various frameworks/libraries out there more suitable to shoehorning into an existing project?

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  • Only one user can connect to Ubuntu samba server

    - by StaticMethod
    I setup a samba server on 12.04 LTS, and it works great for one user but not the others. I am trying to map a network drive from a windows 7 laptop. I can successfully authenticate with one user, but the other two both get "Access is denied" errors. Here is my smb.conf file. [global] server string = %h server (Samba, Ubuntu) map to guest = Bad User obey pam restrictions = Yes pam password change = Yes passwd program = /usr/bin/passwd %u passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* . unix password sync = Yes syslog = 0 log file = /var/log/samba/log.%m max log size = 1000 dns proxy = No usershare allow guests = Yes panic action = /usr/share/samba/panic-action %d idmap config * : backend = tdb [printers] comment = All Printers path = /var/spool/samba create mask = 0700 printable = Yes print ok = Yes browseable = No [print$] comment = Printer Drivers path = /var/lib/samba/printers [share] comment = Ubuntu File Server Share path = /srv/share read only = No create mask = 0755 I know that the service is successfully reading from the /etc/passwd file because if I change the Linux password for the user that works, I have to use the new password when I connect. I changed all the users so they are all members of the same groups (all three users are admins anyway). I only ever have one user connected at a time. Here are the permissions on the shared folder /srv$ ls -l drwxrwxrwx 1 nobody nogroup 16 Feb 22 17:05 share Any ideas?

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  • How to remove SelectionLinks extension from Chrome on Windows?

    - by Faustas
    It's not possible to remove it using the standard extension disablement/removal features in Chrome - the checkbox is disabled. I also found that the extension gets installed under C:\Users\\AppData\Local\Google\Chrome\User Data\Default\Extensions\ - tried to delete it there, but it's still active. In fact, I tried deleting the whole C:\Users\\AppData\Local\Google\Chrome\User Data\ directory, but the next time Chrome starts, it recreates it and the extension gets recreated. Seems like there is something running in Windows that keeps detecting that Chrome extension is not there anymore and reinstates it. Any ideas how to get rid of it?

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  • SQL DB design to support user feeds (in application like facebook)

    - by Yoav
    I have a social network server with a MySql DB. I want to show the users feeds like done in Facebook. Example - UserX now Friend with userY, userX did like on postX etc. Currently I have table: C1 : UserId C2 : LogType (now friend, did like etc) C3 : ObjectId (Can be userId or postId) - set depending on the LogType. Currently to get all related logs to show to the user I do the following queries: 1. Get All user Friends userIds 2. Query all rows which C1 is in userIds (I query completed) 3. Scan the DB and see - if LogType equals DidLike, check if post's OwnerId is the userId - if yes add it to logs. And so on. Obvious this is not efficient at all. I am looking for a better way. I thought I had in mind: Create a new table (in addition to the Log table) C1 : UserId C2 : LogId (from Log table) C3 : UserID of the one who did the action When querying logs - look in the table and get related Logs (by LogId) from LogTable. Updating the table: Whenever user doing action that should be in the log: 1. Add the Log entry to LogTable. 2. Scan the DB and see which users are interested with the Log (Who my friends are, Who is the owner of the post) and add related entries to the new table. (must be done in BG). 3. If user UNFRIEND another user - then look in the logs for all rows where C3 == UNFRIENDED user id and delete them. Any opinions? Other suggestions?

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  • How to connect two subnet with Windows Server?

    - by 9dan
    Hello, I have some work to do in a small office. This office has two separate Internet connections. One is a kind of DSL line and connected through the Internet sharing router (DHCP). One is a leased line with public IP adresses (No DHCP). This leased line provide only 30 IP addresses and the gateway is provided by the ISP. Some workers use private IP provided by the router, some workers use manually setup public IP. There is a Windows 2008 R2 server with two NICs, connected to each lines. I want to connect/merge(?)/bridge(?) two subnet with this server so that users from the different subnet can access each other. How can I accomplish this? Something like, add gateway function to this server and public IP users change the gateway to point this server.. It it possible ? Sorry for my rambling. Thanks in advance.

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  • Best client and server antivirus for 5 user office?

    - by drpcken
    I'm setting up an Active Directory environment for 5 users (very small) and I'm wondering what is the best antivirus for clients (Windows 7) and servers (Server 2008 R2 x64)? I use Symantec Corp at my organization (50+ users) but I think that is overkill for this company. I wanted to use Microsoft Security Essentials for the clients (I use it for home machines and it's the best free AV in my opinion) but I don't think it will work on the Servers (3 servers, PDC, TS, and File). They are behind a Sonicwall TZ 200. What would be the best. Free would be even better. Thank you!

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  • How to control remote access to Sonicwall VPN beyond passwords?

    - by pghcpa
    I have a SonicWall TZ-210. I want an extremely easy way to limit external remote access to the VPN beyond just username and password, but I do not wish to buy/deploy a OTP appliance because that is overkill for my situation. I also do not want to use IPSec because my remote users are roaming. I want the user to be in physical possession of something, whether that is a pre-configured client with an encrypted key or a certificate .cer/.pfx of some sort. SonicWall used to offer "Certificate Services" for authentication, but apparently discontinued that a long time ago. So, what is everyone using in its place? Beyond the "Fortune 500" expensive solution, how do I limit access to the VPN to only those users who have possession of a certificate file or some other file or something beyond passwords? Thanks.

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