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• something like persistent X forwarding?

  - by Arthur Ulfeldt

  I'm having trouble with the title on this one, please edit. When users connect to a VM with VNC/NX/RDP/other-tla they get a persistent desktop in a window . When they connect using ssh -X forwarding they get a local window managed by the local windo-manager that is not persistent. 1: is there a way to run a program on the VM and have it managed locally AND have it persistent? 2: can the client be on windows or OS-X? ps: in this case the vm's are running Ubuntu

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• Is now the right time to move to .NET 4?

  - by bconlon

  The reason I pose this question is that I'm looking at WPF development and so using the latest version seems sensible. However, this means rolling out the .NET 4 runtime to PCs on old versions of the framework. Windows XP is still the number one O/S (estimated 40%+ market share). To run .NET 4 on XP requires Service Pack 3, and although it is good practice to move to the latest service packs, often large companies are slow to keep up due to the extensive testing involved. In fact, .NET 4 is not installed as standard with any Windows O/S as yet - Windows 7 and 2008 Server R2 have 3.5 installed. This is not quite as big an issue as it was for .NET 3.5 as .NET 4 is significantly smaller as it doesn't include the older runtimes - .NET 3.5 SP1 included .NET 3 and .NET 2 and was 250MB, although this was reduced by doing a web install. The size is also reduced a bit if you target the .NET 4 Client Profile, which should be OK for many WPF applications, and I think this may be rolled out as part of Windows service packs soon. But still, if your application is only 4-5 MB and you need 40-50 MB of Framework it is worth consideration before jumping in and using the new shiny features. #

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• Outlook 2010 intermittently going offline

  - by BarmyArmy

  Just a quick question to see if anyone can give me any direction in or solve the the following problem: Within the office there are a minority who use Outlook client using IMAP and the rest use Thunderbird on Linux. The people who are using Outlook 2010 are repeated (almost daily) reporting outages of emailing services for hours at a time forcing them to sign in and out etc but the people using Thunderbird do not have any issues what so ever which I assume will rule out an issue with the old mail server we are currently using. Any help in the matter would be hugely appreciated and of course if I can provide any further information to articulate understanding of the issue then please just ask. Thanks!

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• Ganglia multicast with clustering

  - by luckytaxi

  Let's say I have two hosts. One acts as the server where gmetad and a local gmond resides. It also has the web interface. I then have a client that only has gmond configure as follows. Anyways, everything works fine if i remove the mcast_join line from the udp_recv_channel If I leave it as is the UI doesn't show any hosts. I'm following the quick start guide found here In my gmond.conf file i have the following. udp_send_channel { mcast_join = host1 port = 8661 ttl = 1 } udp_recv_channel { port = 8661 retry_bind = true mcast_join = host1 bind = host1 } In my gmetad.conf file i have. data_source "Infrastructure" host1:8661 host2:8661

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• Windows Home Server is showing signs of death

  - by Guy

  I have a Windows Home Server (HP EX485 MediaSmart Home Server) and it started acting up about 4 weeks ago and a few days ago complained of a corrupt database and would I like to try and recover it? Yes, I would but I ended up losing all backups. I have to reboot it frequently for the client machines to be able to see it. I have 4 hard disks in the computer. I suspect that the primary hard disk is going bad. My first question: How can I confirm if it's going bad or not? I'm thinking about removing the primary disk and replacing it with one of the others and reloading the OS with the server restore disk. I know that I'll lose everything (but I recently did anyway) but is there any other reason why I should not do this?

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• HTTPS vs. VPN for communication between business partners?

  - by Andrew H

  A business partner has asked to set up a site-to-site VPN just so that a few servers can communicate with each other over HTTPS. I'm convinced this isn't necessary, or even desirable. To be fair it must be part of a wider policy, potentially even a legal requirement. However I'd like to convince them to simply offer an IP to us (and us only) and a port of their choosing for HTTPS. Has anyone had a similar experience, or had to come up with a cast-iron argument against a VPN? Allow me to expand a little - we have a web service that initiates a connection to the partner's corresponding service using an encrypted HTTP connection. The connection uses a client certificate to authenticate. The connection is firewalled so only our IPs can contact the service. So why is a VPN necessary?

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• Restrict Applications access to Device

  - by Dboy1612

  I have a PC that has the ability to handle running multiple game clients at once (specifically Tera Online). What I'd like to do is assign and/or restrict each clients access to a device (Gamepad) so that the actions from each device only effects the client I specify. After doing some research with Python's PyGame, I can see that a Gamepad essentially works like a Keyboard does by sending global key events to the entire system, and then the application reading those events. Question is, how can I make it not global? ONly have one application read one controller? Any help is appreciated!

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• Log incoming requests on Ubuntu (ports 80, 443)

  - by Maxim Eliseev

  We have Tomcat running on Ubuntu server. It runs a web service, open to the internet. Sometimes it has a sudden spike of traffic and goes down. There is nothing unusual in Tomcat access logs. I guess it is because some of the requests are so 'heavy' that they never finish and hence are not recorded to Tomcat access logs. Is there a way to configure Ubuntu to log incoming requests in the following format (below)? Date, Time, URL (with query string params), IP address (of client) There should be one line per request. Each request should be logged before it is executed. Only incoming requests to ports 80 and 443 should be logged.

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• How secure is using "Normal password" for SMTP with connection type = STARTTLS?

  - by harshath.jr

  I'm using an email client for the first time - for the most part I've always used gmail via the web interface. Now I'm setting up thunderbird to connect to an email server of my own (on my own server, own domain name, etc). The server machine (and the email server on it) was preconfigured for me. Now i figured out away by which I'm able to send and receive email, but I noticed that in the outgoing and incoming servers section, the connection type was STARTTLS (and not SSL/TLS), and the Authentication Type was "Normal Password". Does this mean that the password will be sent across in plain text? I'm very paranoid about security - its the only way that it works for me. Can someone please post links that explain how SMTP (my outbound server) and IMAP (my inbound server) servers work, and what connection type means what? Thanks! PS: If this question does not belong here, please redirect me.

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• Access or import an Outlook 2003 .pst file without Outlook

  - by Nobler

  I have a 450 meg .pst file (MS Outlook 2003 backup file) saved from a PC before it crashed. I would like to break it up into its components i.e. Save attachments to folders on my PC Paste text-emails into a word processor, etc. But I don't want to buy MS Office Professional 2003 or later solely for importing the .pst into MS Outlook 2003+. Outlook Express cannot import .pst files, only Outlook “proper” can. Is there some free email client out there, e.g. Thunderbird, that can import .pst files? Or is there some other way to access the 450meg file?

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• Dhcp clients fail after successful import of server to new machine (win2k3)

  - by Tathagata

  I transfered the configs of a dhcp server from one server to another both running Windows Server 2003 R2 following http [://] support.microsoft.com/kb/325473. The new server has a statically configured ip(outside the scope) like the old one. Stopped the server on the old, and started up in the new server (authorized too) - but when I ipconfig /renew from a client its network interface fails with all 0.0.0.0 (or 169...*). I read somewhere I need to reconcile the scope to sync the new registry values ('ll try this tomorrow). What other troubleshooting steps can I take other than these (which didn't help)? Things work fine when the old server resurrects and the new one is taken down. The new server showed there was no requests for offer.

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• Gitosis installation of public key not working...

  - by user29600

  I've been following this tutorial to install and setup git on Ubuntu Server 10.04 using Windows 7 as a client. However, after finally figuring out how it works (executed gitosis-init a bunch of times on the wrong key), I copied the id_rsa.pub file over to the server in /tmp folder and ran it again. Unfortunately it still doesn't work and when I execute git clone [email protected]:gitosis-admin.git it asks for gitosis's password rather than the RSA Passphrase. I'm assuming is the same problem this guy is having here... however, after following his instructions: Purge git-core and gitosis and manually remove the /srv/gitosis folder and following the instructions again (with the proper id_rsa.pub file this time), I'm still having the same issue. Anyone know what I'm doing wrong? Is there any way to probe for more information that might help in solving this?

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• private subnet nat (openvpn / racoon)

  - by Jonas Schnelli

  I have a openvpn subnet 10.8.0.0/24 running one server and one client (laptop). openvpn works fine. Browsing the web over openvpn from the laptop works also fine. Now on the server there is a private subnet with 10.7.8.128/28. The subnet is set up with racoon (IPSEC s2s vpn). The s2s vpn allows me to access the subnet 10.3.5.0/24 at the other s2s vpn end. Works all fine when I'm connected with ssh to my server. From my laptop i can ping 10.7.8.129 (the servers ipsec local ip) but i cannot reach the net 10.3.5.0/24. I tried to add a static route on my laptop 10.3.5.0/24 over gw 10.7.8.129 with no success. Any ideas how i do setup the nat / routing? Thanks

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• Polling performance on shared host

  - by Azincourt

  I am planning on writing a small browser game. The webserver is a shared server, with no root / install possible. I want to use AJAX for client/server communication. There will be 12 players. So each player would be polling the server for the current game status every X milliseconds (let's say 200ms). So that would be 200ms x 12 players x 5 = 60 requests per second Can Apache handle those requests? What might be the bottlenecks when using this attempt?

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• Streaming audio to headless linux box

  - by Ralph

  I have a dual boot (Win 7 + Ubuntu) PC connected via wifi with my music collection on a local HDD. I usually use Rhythmbox on Ubuntu or Winamp on Windows to listen to my music but I'll change if I have to. I also have a Raspberry Pi (low power PC running Debian) in the living room that is usually headless and connected via ethernet. The Raspberry Pi is also connected to my living room speakers via an amp. I would like to be able to stream music from my PC over the network to the linux raspberry pi. What software can I use to do this? Some sort of audio client\server?

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• Proxy Server suggestions

  - by Jon Menefee

  Here is the question I have that hopefully is not too general of a question. I have a network with approximately 25 PC's, 3 servers and 25 IP cameras. I have a firewall already on the network and it works fine for what I need, but my client is asking me if there is a way to put a Proxy server on the network to monitor where his employees are going when they surf the Internet. He is not wanting to block them (at least not thru the Proxy server), but he wants to make sure that they arent going to sites that would compromise the networked PCs. I have looked at TMG and it is a little more than what I want. I hesitate adding another firewall to the system because of the security cameras that are presently on the network (IP Cameras). I just want to put a policy in AD that would make certain Users (or Computers) use a Proxy server. Any suggestions on a good proxy server are welcome. Thank you

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• Why does't rsync use delta-transfer for local files ?

  - by o_O Tync

  I have a big iso image which is currently being downloaded by a torrent client with space-reservation turned on: that means, file size is not changing while some chunks in in (4 Mib) are constantly changing because of a download. At 90% download I do the initial rsync to save time later: $ rsync -Ph DVD.iso /some/target/ sending incremental file list DVD.iso 2.60G 100% 40.23MB/s 0:01:01 (xfer#1, to-check=0/1) sent 2.60G bytes received 73 bytes 34.59M bytes/sec total size is 2.60G speedup is 1.00 Then, when the file's fully downloaded, I rsync again: total size is 2.60G speedup is 1.00 Speedup=1 says delta-transfer was not used, although 90% of the file has not changed. Why?!

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• How to add linked Oracle server to SQL 2008 Express?

  - by David.Chu.ca

  I have tried to download Oracle Client 11g both 32 & 64 packages to Windows 2008 R2 with SQL server 2008 Express. However, I still cannot see Oracle provider in SQL server by using sa log in. Not sure if is it possible to do it for SQL Server express 2008? Any advice to do it? I followed installations from this article: Making Linked Server Connection Between SQL Server 64 Bit & Oracle 32 Bit | MS SQL World After installation and reboot the Windows, I still cannot see the Oracle provider in linked provider in SQL server.

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• using gmail to send mails from your php?

  - by ajsie

  i've read some threads here in SO that someone managed to use gmail's smtp server to send out messages from php script. so if php sends a mail to [email protected] it looks like this: php tells sendmail (smtp server) to send the message sendmail sends the message to gmail's smtp server gmail's smtp server sends the message to hotmail's smtp server so now i wonder, why should one use gmail's smtp server to send a mail? isn't it better just to send the message from sendmail to hotmail's smtp server? correct me if im wrong, but isnt all that requires for a mail to be sent a communication between TWO smtp servers, the senders and the receivers (in this case, hotmail)? and another question, why can't php just send the message directly to hotmail's smtp server, why does it have to go through a local smtp server? and why do you call it a smtp server when sendmail is just acting like a client to send a message and does not receive anything? would be great if someone could shed a light on this topic!

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• Did C++11 address concerns passing std lib objects between dynamic/shared library boundaries? (ie dlls and so)?

  - by Doug T.

  One of my major complaints about C++ is how hard in practice it is to pass std library objects outside of dynamic library (ie dll/so) boundaries. The std library is often header-only. Which is great for doing some awesome optimizations. However, for dll's, they are often built with different compiler settings that may impact the internal structure/code of a std library containers. For example, in MSVC one dll may build with iterator debugging on while another builds with it off. These two dlls may run into issues passing std containers around. If I expose std::string in my interface, I can't guarantee the code the client is using for std::string is an exact match of my library's std::string. This leads to hard to debug problems, headaches, etc. You either rigidly control the compiler settings in your organization to prevent these issues or you use a simpler C interface that won't have these problems. Or specify to your clients the expected compiler settings they should use (which sucks if another library specifies other compiler settings). My question is whether or not C++11 tried to do anything to solve these issues?

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• JavaOne Technology Conference Is Coming to Russia

  - by Tori Wieldt

  JavaOne Russia 17-18 AprilRussian Academy of Sciences, MoscowRegister Now JavaOne and Oracle Develop 2012 Russia offers a wide variety of sessions, hands-on labs, keynotes, demos, and the opportunity to network with developer peers. If you’re looking for in-depth sessions on Java technologies and tools, this is the conference for you. Your registration also gets you into Oracle Develop sessions as well, so you can learn about application servers, cloud development and, of course, database development. The JavaOne Russia tracks are:Client-Side Technologies and Rich User ExperiencesLearn about developments in Java for the desktop and practices for building rich, immersive, and powerful user experiences across multiple hardware platforms and form factors. Core Java PlatformDiscover the latest innovations in Java virtual machines. Get deep technical explanations in security and networking and enhancements that allow dynamic programming languages to drive Java platform adoption. Java EE Web Profile, Platform Technologies, Web Services, and the Cloud Update your knowledge on topics such as Web application development, persistence, security, and transactions. This track will also address modularity, enterprise caching, Web sockets, and internet identity. Mobile, Java Card, Embedded, and DevicesThis track is devoted to Java technology as the ultimate platform for mobile computing. It also covers embedded and device usages of Java technologies, including Java SE, Java ME, Java Card, and JavaFX. Share this event: #oracleRU

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• Resetting Windows 8 password

  - by Jonathan

  Hello does anyone know of a way to remove or reset windows passwords in windows 8. Without logging in to windows first. In Windows 7 I used Hirens but it is not working for Windows 8. - I am talking about local user account password not Microsoft online accounts like @hotmail.com or domain accounts those can be reset. The scenario is a computer running Windows 8 with a local only user and the client forgot the password to the only active account. Is there a way to remove or reset that password?

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• Log into AD account through Command Line

  - by CranialPain

  Our SBS2003 server likes to lose connection every so often. This appears to 'kick' everyone out, so that no-one can access the server or its shared folders without a log off log in. It usually brings up an error message stating that Windows 7 (on the client machines) cannot find the server, even though its ping-able. Is there a way to login through the command line so I can just write a batch file and have the users double-click it and enter their credentials instead of closing down programs and logging out/in over and over?

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• Access Control Service: Programmatically Accessing Identity Provider Information and Redirect URLs

  - by Your DisplayName here!

  In my last post I showed you that different redirect URLs trigger different response behaviors in ACS. Where did I actually get these URLs from? The answer is simple – I asked ACS ;) ACS publishes a JSON encoded feed that contains information about all registered identity providers, their display names, logos and URLs. With that information you can easily write a discovery client which, at the very heart, does this: public void GetAsync(string protocol) {     var url = string.Format( "https://{0}.{1}/v2/metadata/IdentityProviders.js?protocol={2}&realm={3}&version=1.0",         AcsNamespace,         "accesscontrol.windows.net",         protocol,         Realm);     _client.DownloadStringAsync(new Uri(url)); } The protocol can be one of these two values: wsfederation or javascriptnotify. Based on that value, the returned JSON will contain the URLs for either the redirect or notify method. Now with the help of some JSON serializer you can turn that information into CLR objects and display them in some sort of selection dialog. The next post will have a demo and source code.

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• TraceTune supports uploading Zip files

  - by Bill Graziano

  I’ve been using the online version of ClearTrace more and more lately.  When I get to a new client it’s just much easier to upload a trace file rather than install ClearTrace. That means I’ve finally been adding more features to it.  The two latest features are around ease of use. You can now upload a ZIP file that contains a trace file.  Trace files are already somewhat compressed.  Putting it in a ZIP file further compresses it by a factor of 8X or 9X in my testing. That means you can start with a 100MB trace and end up with a 10Mb-12MB ZIP file to upload.  I’m consistently able to get over 150,000 events in a 100MB ZIP file.  That gives me a pretty good look at a system. The second part of this is that files are now processed asynchronously.  After you upload a file you’ll be taken to a processing page that updates every few seconds with the number of rows processed.  It generally takes under a minute to process a 100MB trace file but I *hated* staring at a blank screen. Give TraceTune a try.  It’s getting easier to use every day.

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