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  • Simply apply engaging, modern web 2.0 UI to VWG apps

    - by Webgui
    Gizmox is conducting an interesting webcast this Wenesday (May 12 10am PST). The upcoming webcast, titled Applying engaging, modern web 2.0 look & feel to your VWG application with version 6.4 will show how the new developer-designer interface allowed by the VWG framework simplifies the process of creating new Web application themes in VWG and define each one's responsibilities (making usage of Adobe Photoshop) in the process. The presenters will walk you through the process, starting from a default theme, understanding the needs and implementing those design needs accordingly. The webcast which is taking place on May 12 is open to everyone for free. https://www1.gotomeeting.com/register/601138081

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  • Model Based Apps and Frameworks

    Having been involved (mostly as a user or observer) with several recent applications and frameworks, Ive come to the conclusion that building your app/framework on an internal model is generally the best way to go.  In this post Ill explain what I mean by on an internal model and later describe the benefits I have seen, realized, been told about by others and still others that Ive only imagined (but are still possible).  I plan on writing a few blog posts along these lines to explore what...Did you know that DotNetSlackers also publishes .net articles written by top known .net Authors? We already have over 80 articles in several categories including Silverlight. Take a look: here.

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  • Comparing outgoing mail options, self hosted VS google apps in my situation

    - by Hoofamon
    I am setting up a small site that has the need to be able to programmatically send mail from time to time. Password resets and things like that. I'm already using google apps to handle my domains email, so now i'm left with the decision between setting up basic SMTP services on my server to send "password reset mails and things like that" OR instead to have the software use google apps to send mail. I like the google apps option as it's less stuff to worry about and seems to fit my needs, i'm trying to figure out what the downsides would be? Thanks for any thoughts

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  • IO Profiling of Applications: MPI Apps

    <b>Linux Magazine:</b> "In the last article we looked at using strace to examine the IO patterns of simple serial applications. In the High Performance Computing (HPC) world, applications use MPI (Message Passing Interface) to create parallel applications. This time around we discuss how to attack parallel applications using strace."

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  • Xubuntu - Apps Become Unresponsive Intermittently

    - by Levinaris
    Possibly Relevant Information: XUbuntu 12.04 LTS (precise) XFCE 4.8 AMD Graphics (Kernel driver in use: fglrx_pci, Kernel modules: fglrx, radeon) The primary symptom of this issue has been my active rdesktop session to stop responding while everything else appears to work normally. I have been killing rdesktop and re-launching it, with it freezing after a seemingly random time period. The fastest was within seconds. The longest was a couple hours, although it's usually within a few minutes. That being said, I have occasionally seen the terminal and web browsers also become unresponsive to keyboard input. They respond to clicks and will accept middle clicks (to paste text) without issue while remaining unresponsive to the keyboard input. I have been able to restore all functionality, including rdesktop, by switching workspaces and typing on the other workspace, then returning to the original workspace. What is being reset when I do this? What does this work-around/solution indicate may be the problem?

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  • SonicOS Enhanced 5.8.1.2 L2TP VPN Authentication Failed

    - by Dean A. Vassallo
    I have a SonicWall TZ 215 running SonicOS Enhanced 5.8.1.2-6o. I have configured the L2TP VPN using the default crypto suite ESP: 3DES/HMAC SHA1 (IKE). Proposals are as such: IKE (Phase 1) Proposal DH Group: Group 2 Encryption: 3DES Authentication: SHA1 Life Time (seconds): 28800 Ipsec (Phase 2) Proposal Protocol: ESP Encryption: 3DES Authentication: SHA1 Enable Perfect Forward Secrecy DISABLED Life Time (seconds): 28800 When attempting to connect via my Mac OS X client I get an authentication error. It appears to pass the pre-authentication but fails to complete. I am at a complete loss. I reconfigured from scratch multiple times...used simple usernames and passwords to verify this wasn't a miskeyed password issue. I have Here are the logs (noted IP has been removed for privacy): 7/1/13 8:19:05.174 PM pppd[1268]: setup_security_context server port: 0x1503 7/1/13 8:19:05.190 PM pppd[1268]: publish_entry SCDSet() failed: Success! 7/1/13 8:19:05.191 PM pppd[1268]: publish_entry SCDSet() failed: Success! 7/1/13 8:19:05.191 PM pppd[1268]: pppd 2.4.2 (Apple version 727.1.1) started by dean, uid 501 7/1/13 8:19:05.192 PM pppd[1268]: L2TP connecting to server ‘0.0.0.0’ (0.0.0.0)... 7/1/13 8:19:05.193 PM pppd[1268]: IPSec connection started 7/1/13 8:19:05.208 PM racoon[1269]: accepted connection on vpn control socket. 7/1/13 8:19:05.209 PM racoon[1269]: Connecting. 7/1/13 8:19:05.209 PM racoon[1269]: IPSec Phase 1 started (Initiated by me). 7/1/13 8:19:05.209 PM racoon[1269]: IKE Packet: transmit success. (Initiator, Main-Mode message 1). 7/1/13 8:19:05.209 PM racoon[1269]: >>>>> phase change status = Phase 1 started by us 7/1/13 8:19:05.231 PM racoon[1269]: >>>>> phase change status = Phase 1 started by peer 7/1/13 8:19:05.231 PM racoon[1269]: IKE Packet: receive success. (Initiator, Main-Mode message 2). 7/1/13 8:19:05.234 PM racoon[1269]: IKE Packet: transmit success. (Initiator, Main-Mode message 3). 7/1/13 8:19:05.293 PM racoon[1269]: IKE Packet: receive success. (Initiator, Main-Mode message 4). 7/1/13 8:19:05.295 PM racoon[1269]: IKE Packet: transmit success. (Initiator, Main-Mode message 5). 7/1/13 8:19:05.315 PM racoon[1269]: IKEv1 Phase 1 AUTH: success. (Initiator, Main-Mode Message 6). 7/1/13 8:19:05.315 PM racoon[1269]: IKE Packet: receive success. (Initiator, Main-Mode message 6). 7/1/13 8:19:05.315 PM racoon[1269]: IKEv1 Phase 1 Initiator: success. (Initiator, Main-Mode). 7/1/13 8:19:05.315 PM racoon[1269]: IPSec Phase 1 established (Initiated by me). 7/1/13 8:19:06.307 PM racoon[1269]: IPSec Phase 2 started (Initiated by me). 7/1/13 8:19:06.307 PM racoon[1269]: >>>>> phase change status = Phase 2 started 7/1/13 8:19:06.308 PM racoon[1269]: IKE Packet: transmit success. (Initiator, Quick-Mode message 1). 7/1/13 8:19:06.332 PM racoon[1269]: attribute has been modified. 7/1/13 8:19:06.332 PM racoon[1269]: IKE Packet: receive success. (Initiator, Quick-Mode message 2). 7/1/13 8:19:06.332 PM racoon[1269]: IKE Packet: transmit success. (Initiator, Quick-Mode message 3). 7/1/13 8:19:06.333 PM racoon[1269]: IKEv1 Phase 2 Initiator: success. (Initiator, Quick-Mode). 7/1/13 8:19:06.333 PM racoon[1269]: IPSec Phase 2 established (Initiated by me). 7/1/13 8:19:06.333 PM racoon[1269]: >>>>> phase change status = Phase 2 established 7/1/13 8:19:06.333 PM pppd[1268]: IPSec connection established 7/1/13 8:19:07.145 PM pppd[1268]: L2TP connection established. 7/1/13 8:19:07.000 PM kernel[0]: ppp0: is now delegating en0 (type 0x6, family 2, sub-family 3) 7/1/13 8:19:07.146 PM pppd[1268]: Connect: ppp0 <--> socket[34:18] 7/1/13 8:19:08.709 PM pppd[1268]: MS-CHAPv2 mutual authentication failed. 7/1/13 8:19:08.710 PM pppd[1268]: Connection terminated. 7/1/13 8:19:08.710 PM pppd[1268]: L2TP disconnecting... 7/1/13 8:19:08.711 PM pppd[1268]: L2TP disconnected 7/1/13 8:19:08.711 PM racoon[1269]: IPSec disconnecting from server 0.0.0.0 7/1/13 8:19:08.711 PM racoon[1269]: IKE Packet: transmit success. (Information message). 7/1/13 8:19:08.712 PM racoon[1269]: IKEv1 Information-Notice: transmit success. (Delete IPSEC-SA). 7/1/13 8:19:08.712 PM racoon[1269]: IKE Packet: transmit success. (Information message). 7/1/13 8:19:08.712 PM racoon[1269]: IKEv1 Information-Notice: transmit success. (Delete ISAKMP-SA). 7/1/13 8:19:08.713 PM racoon[1269]: glob found no matches for path "/var/run/racoon/*.conf" 7/1/13 8:19:08.714 PM racoon[1269]: pfkey DELETE failed: No such file or directory

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  • API Auth vs User Auth

    - by user1626384
    I have read many posts and articles on this topic but still cant connect the dots. I want to make a Rails app that is strictly a JSON API maybe using Sinatra or the rails-api gem. I also want to make both a web client app and an iPhone app which consumes the API. No plans on letting third party dev's use it. So I could create a separate username/password combination for both the web and mobile client and use HTTP Basic over SSL. Each app would have these values as configs in the source and use it to authenticate to the API so only these can make a call. Anyone else trying would get a 401 error returned. This would be considered handling the API authentication. The web and mobile client apps allow end users to sign up and read/write data to the API. When each user is created, I create and save a token in their profile. If a user successfully signs in, I send back the token. On each future read/write then also send along this token in the header. I get the token and lookup the user in the database and make the read/write. Does this sound like an appropriate way to handle it. For the web client, when I initially send back the token, where do I store it. In a cookie? Do I also drop a cookie to handle session state?

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  • How to fix sudo: setreuid(ROOT_UID, user_uid): Operation not permitted error?

    - by David R.
    I am using LDAP authentication on my Ubuntu 11.10 server. I installed libpam-ldap, and configured things accordingly. It works great, except that I get this error every once in a while when I try to sudo: sudo: setreuid(ROOT_UID, user_uid): Operation not permitted I know I have sudoers set up correctly, since it works most of the time. It's not just my log in either, others have the same problem when I have it. When this error is occurring, I can't ssh in with my regular system user at all. When I sign in directly, I can't get any gnome-terminal to start. Once I restart the server, the problem goes away. 'Course, that's not a solution, if it was a prod server, I'd be in trouble. How do I fix this? Edit 3/1/12: I just figured out that if stop and start the nscd service, the problem goes away. service nscd stop service nscd start Not much of a solution since I have to be logged into the server directly, not via ssh.

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  • How do I install FreeNX server so that it works correctly?

    - by Niklas
    I've tried every single possible way of installing the server now, I've read every how to available and I still can't get it to work. Please let me know in which step I do wrong. I'm using ubuntu 10.10. I will mainly be referring to the following how-to, but also this, and this one. First I add the ppa Install Freenx Download the special Freenx package as stated in the howto, fix ownership - install it Create custom SSH key Copy the file /var/lib/nxserver/home/.ssh/client.id_dsa.key to the client and import it in nomachine (windows 7 x64) Check that both the user I will be logging in with and the user nx is in AllowedUsers in the /etc/ssh/sshd_config file Check the port that ssh is listening on Login through nomachine with my regular user account in ubuntu I always receive the message "authentication failed for [user]" when I try to log in. And I can't see the user "nx" which is said to be created during installation when I look under System-Administration-"Users & Groups". Can anyone please enlighten me if there is any step that I miss or have misunderstood? Thank you very much! (Or is there an easier way of enabling remote desktop that it can be used with a windows machine? I prefer not using VNC because I was hoping of being able to get better performance than that. And when I tried using XRDP I only received a black screen on the client.)

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  • Cannot authenticate to SBS 2003

    - by Lerp
    I am trying to connect my machine to my work's entirely windows network and I am having a few issues: Whenever I try to access the server, the authentication dialog just keeps popping back up. I cannot connect to the printers (it says connecting to device failed) I have tried setting up samba, winbind, kerberos, likewise open all to no avail. I have a feeling I am just setting them up wrong. My nautilus shows this when I go to Network Windows Network MASTERMAGNETS I can ping both MASTERMAGNETS.LOCAL and 192.168.0.2 after modifying my /etc/hosts james@jamesmaddison:~$ cat /etc/hosts 127.0.0.1 localhost jamesmaddison 192.168.0.2 MASTERMAGNETS.LOCAL 192.168.0.50 Sharp-Printer # The following lines are desirable for IPv6 capable hosts ::1 ip6-localhost ip6-loopback fe00::0 ip6-localnet ff00::0 ip6-mcastprefix ff02::1 ip6-allnodes ff02::2 ip6-allrouters I believe that's the correct domain (not sure if that's the correct term) as when I do nslookup MASTERMAGNETS.LOCAL I get the following: james@jamesmaddison:~$ nslookup MASTERMAGNETS.LOCAL Server: 192.168.0.2 Address: 192.168.0.2#53 Name: MASTERMAGNETS.LOCAL Address: 192.168.0.3 Name: MASTERMAGNETS.LOCAL Address: 192.168.0.2 It all worked fine before I reinstalled Ubuntu and now I just cannot get access to the server. All help is appreciated, I need to get this working or I fear I will be forced to develop in a windows environment :(

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  • Implicit OAuth2 endpoint vs. cookies

    - by Jamie
    I currently have an app which basically runs two halves of an API - a restful API for the web app, and a synchronisation API for the native clients (all over SSL). The web app is completely javascript based and is quite similar to the native clients anyway - except it currently does not work offline. What I'm hoping to do is merge the fragmented APIs into a single restful API. The web app currently authenticates by issuing a cookie to the client whereas the native clients work using a custom HMAC access token implementation. Obviously a public/private key scenario for a javascript app is a little pointless. I think the best solution would be to create an OAuth2 endpoint on the API (like Instagram, for example http://instagram.com/developer/authentication/) which is used by both the native apps and the web app. My question is, in terms of security how does an implicit OAuth2 flow compare (storing the access token in local storage) to "secure" cookies? Presumably although SSL solves man in the middle attacks, the user could theoretically grab the access token from local storage and copy it to another machine?

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  • correct way to implement auth/acl in mvc

    - by WiseStrawberry
    I am looking into making a correctly laid out MVC auth/acl system. I think I want the authentication of a user (and the session handling) to be seperate from the ACL system. (I don't know why but this seems a good idea from the things I've read) What does mvc have to do with this question you ask? Because I wish for the application to be well integrated with my acl. An example of a controller (CodeIgniter) <?php class forums extends MX_Controller { $allowed = array('users', 'admin'); $need_login = true; function __construct() { //example of checking if logged in. if($this->auth->logged_in() && $this->auth->is_admin()) { echo "you're logged in!"; } } public function add_topic() { if($this->auth->allowed('add_topic') { //some add topic things. } else { echo 'not allowed to add topic'; } } } ?> My thoughts $this->auth would be autoloaded in the system. I would like to check the $allowed array against the user currently (not) logged in and react accordingly. Is this a good way of doing things? I haven't seen much literature on mvc integration and auth. I want to make things as easy as possible.

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  • SIMPLEST way to set up password protection for a static site, with basic admin UI?

    - by Joseph Turian
    I have a static site. I would like the simplest approach to password protecting a directory, with a basic admin UI for adding/removing users. I will have so few users that I don't care about performance. I don't care if it's PHP or Django or whatever, I just want a complete software package. Apache basic auth isn't good, because you can't log out. Nor is there a UI for adding users. I tried throwing everything behind Django auth and serving the files through Django. However, Chrome treats all my text/css headers as text/plain, so I don't get any stylesheets showing. I can't use mod_xsendfile on my server because I can't reconfigure Apache to add new modules. I think this approach is overkill anyway. I can try configuring Nginx's X-Accel-Redirect, however that requires implementing all the Django code for auth myself, and I'd prefer an existing solution. However, this is my backup plan. Is there a code package that implements authentication with basic admin for a static site?

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  • Can I set up samba so it automatically allows all the local usernames and passwords?

    - by dialer
    I have set up samba like this (this is the complete smb.conf): [global] log file = /var/log/samba/log log level = 2 security = user [homes] browsable = false read only = no valid users = %S I'd like to enable every user on server to access their home directories, but for some unknown reason only my 'administrator' account can do so. (I have done that with ftp before, but now smb is also needed). When I try to smbclient -L localhost -U [user], I get NT_STATUS_LOGON_FAILURE, except with the administrator (which is the user created during the ubuntu installation, not root). The samba log file says NT_STATUS_NO_SUCH_USER: [2012/04/04 20:26:02.081454, 2] smbd/reply.c:554(reply_special) netbios connect: name1=LOCALHOST 0x20 name2=DIALER-X 0x0 [2012/04/04 20:26:02.081733, 2] smbd/reply.c:565(reply_special) netbios connect: local=localhost remote=dialer-x, name type = 0 [2012/04/04 20:26:02.087200, 2] auth/auth.c:314(check_ntlm_password) check_ntlm_password: Authentication for user [public] - [public] FAILED with error NT_STATUS_NO_SUCH_USER I suspect that I have to manually create samba users, but the man pages state that If the client has passed a username/password pair and that username/password pair is validated by the UNIX system's password programs, the connection is made as that username. To me that sounds like as long as the provided username/password is a valid login on the server, it should work. Am I missing something totally obvious? I don't want / can't afford to manually update the samba users and passwords to match the server's. 11.10

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  • What is the correct way to implement Auth/ACL in MVC?

    - by WiseStrawberry
    I am looking into making a correctly laid out MVC Auth/ACL system. I think I want the authentication of a user (and the session handling) to be separate from the ACL system. (I don't know why but this seems a good idea from the things I've read.) What does MVC have to do with this question you ask? Because I wish for the application to be well integrated with my ACL. An example of a controller (CodeIgniter): <?php class forums extends MX_Controller { $allowed = array('users', 'admin'); $need_login = true; function __construct() { //example of checking if logged in. if($this->auth->logged_in() && $this->auth->is_admin()) { echo "you're logged in!"; } } public function add_topic() { if($this->auth->allowed('add_topic') { //some add topic things. } else { echo 'not allowed to add topic'; } } } ?> My thoughts $this->auth would be autoloaded in the system. I would like to check the $allowed array against the user currently (not) logged in and react accordingly. Is this a good way of doing things? I haven't seen much literature on MVC integration and Auth. I want to make things as easy as possible.

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