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  • Ubuntu crashes with menu bar launcher freeze during software centre use

    - by UbunUser
    I recently reinstalled Ubuntu 12.04 LTS on a Dell Studio 1588 64-bit and ran into crashes as I was installing some software on the software centre. Before this, I had display/screen problems that I needed to fix so I will briefly describe that in case it has any connection to the crashes. The problem was of screen crash/flickering (related to ATI Mobility Radeon HD 5400x) when trying to adjust brightness and so I followed guidance from an earlier chain (question 131967) to (a) use jockey to install fglrx update driver (deactivate experimental beta driver) and (b) edit grub to add acpi_backlight=vendor dell_laptop.backlight=0 The crashes that happened (twice, while software centre was just finishing installation in the background) was that all tabs (on open Firefox window) stayed open along with cursor control with mousepad but all menu bars disappeared completely along with the launcher and the keyboard also turned unresponsive. So there seemed to be no way to close windows or shut down the computer except for a forced hard shut down of the system using the start button. This is very similar to Questions #167540 and #298843, which seem to be closed. Why is this happening? Is there some update or fix I need to make? Thanks!

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  • VPN doesn't have access to drives unless I use the default gateway

    - by Seb
    I am trying to setup a VPN connection on one of our office servers so that many of our employees can access our drives when out of town or for important business meetings. However I have a weird glitch in where if the default gateway option is checked they can see the drives and files, but get no internet access. If I have the default gateway option unchecked then they have there internet and can successfully connect to the VPN, but they are not able to see any of the drives or files. The server is running Windows Server 2003 Standard while the employees run either XP or 7 Professional. Any help is greatly appreciated. Thank you. EDIT The VPN setup is PPTP and the main server is behind a SonicWall if that is of any importance.

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  • Bazaar - pull the last revision only (and not the whole branch)

    - by Sandman4
    Shortly: How can I take the latest revision (only) from a remote bazaar repository and add it as a new revision to a local repository. Background: I have a development system and a production system. On a development system there's a bazaar repository having branch with lots of development revisions. Once in a while I want to incorporate the latest developments into production system. I want to do so by some sort of "pulling" (development system can not connect to production for security reasons, but production can initiate connection to development). On the production, I don't want the whole development revision history, only those revisions which actually go into production (normally it's the branch tip). Yet I want version control on the production system to keep track of what actually goes into production each time. bzr pull pulls the whole branch. bzr pull --revision=last:1 also pulls the whole branch, up to the specified revision. bzr merge --pull --revision=last:1 also pulls the whole branch. bzr merge --pull --revision=last:2..last:1 and bzr merge --pull --change=last:1 both pull only the new changes introduced in the latest revision, but not changes introduced in the older revisions. With lightweight checkout I have no track of revisions which are pulled into production - local working tree remains part of the remote repository The only way I see so far is importing the working tree using some rsync or scp and committing them to a local branch afterwards. Any better ideas ?

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  • Internet Exploer 8 - Internet Access Issue

    - by Paresh.Bijvani
    Hello, I am using IE8 since last 6 months and its working fine. I am using it by providing proxy server address. Suddenly it started not working today. Strange thing is that it fails to communicate with proxy server. It still work if I use modem as internet connection, its just has problem with proxy server communicationl. Even my Firefox is working fine. And all installed application like Yahoo Messanger and skype working fine. I also uninstalled and reinstalled, but no luck. Any work around? Have anybody faced this issue? Thanks Paresh

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  • Google Chrome suspicious connections

    - by Poni
    I'm using Chrome at Windows and with TCPView (of the SysInternals freeware suit) I see that chrome.exe establish connections to these IPs: 173.194.37.104 209.85.146.138 Using http://www.ipaddresslocation.org/ I check about these IPs and see they're related to Google. Now, in order to clarify, these are the exact things I do: Open up chrome, the default page is set to BLANK (i.e no homepage whatsoever). Then I get into my website which has a blank page, so no "other" http requests are made. Right from this point there is a persistent connection, usually to '173.194.37.104'. What are these?? Very suspicious.. Edit #1: - I'm in 'incognito' mode right from start, when launching Chrome, using a shortcut with the '-incognito' switch. - I've turned off all phishing protections and other "advance" features in order to reduce Chrome's network activity.

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  • Websocket & HTTP proxy with server between two firewalls

    - by Dan
    I have a server ("A") running behind a firewall, which serves HTTP and websockets. I have no control over the firewall, but do have an external server ("B") to which the internal server can connect (note that the reverse connection from B to A is not possible due to the firewall). How can I set up some sort of proxy on B such that an Internet client ("C") can access the resources on A? I'd prefer something lightweight—even a Python program or an SSH tunnel (which I've tried without success)—rather than something more heavyweight but robust.

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  • Is there a way to submit a batch of commands to a Cisco router and have them execute from the router?

    - by atroon
    I need to change the configuration of a remote (6 hours' drive) client's Cisco 871 (IOS 12.4.15T) from my location because of some new internet service at his location. To be more precise, I need to change the default route, ip address of the outside interface (Fa4) and disable the PPPoE setup there. Unfortunately, doing any of this will (obviously) break the connection to the router. I do not have an out-of-band management modem set up (I know, I know). Is there any way to enter the commands I need to have run and have them execute one after the other, from a file on flash:? I have never tried anything like that before. Essentially a DOS-style batch file is exactly what I need. Nothing like it seems to be out there except using kron to execute CLI commands, but that is specified here as only taking EXEC commands, not configuration ones. Is there hope, or do I travel?

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  • kernel openvpn segfault

    - by Rex
    e.. I have some trouble about OPENVPN these days.. At first,I find that the OPENVPN is always down. Then I try to restart it.But after a short while,It's down again. Then I check /var/log/messages and find something below openvpn[4338]: xxx.xxx.xxx.xxx:48484 Re-using SSL/TLS context openvpn[4338]: xxx.xxx.xxx.xxx:48484 LZO compression initialized openvpn[4338]: xxx.xxx.xxx.xxx:48484 [abc.abc_] Peer Connection Initiated with xxx.xxx.xxx.xxx:48484 kernel: openvpn[4338]: segfault at 0000000000000018 rip 00002b75ca30ca2e rsp 00007fff153806a0 error 4 Obviously,OPENVPN is Down. So,I just want to know what's wrong here..... P.s. The username should be abc.abc.But it shows that is abc.abc_ Is there something wrong? CentOS 5.4 x64 Linux 2.6.18-238.9.1.el5 My English is very pool... :( Thanks~

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  • Which JMX statistics to watch out for in Catalina/Tomcat?

    - by geoaxis
    I have configured OpenNMS to collect all kinds of numeric data coming out of tomcat7 jmx. There are a lot of things. I am interested in monitoring this tomcat instance so that I can avoid down time and lockups. What metrics should I be watching out for? I am already monitoring things like CPU, Memory, Network via SNMP. With this JMX connection the things that I find interesting are Catalina:type=GlobalRequestProcessor,name="ajp-bio-/a.b.c.d-XXXX" RequestsCount so far. Catalina:type=Manager,context=/myApp,host=localhost Active sessions and its maximum so far

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  • Need to re-build an application - how?

    - by Tom
    For our main system, we have a small monitor application that sits outside our network and periodically tries to log in to verify the system still works. We have a problem with the monitor though in that the communications component set (Asta 3 inside Delphi applications) doesn't always connect through. Overall, I'd say it's about 95% reliable, but that other 5% kills the monitor since it will try to log in and hang on the connection attempt (no timeout in the component). This really isn't an issue on the client side of the system since the clients don't disconnect and reconnect repeatedly on the same application instance, but I need a way to make sure the monitor stays up and continues working even when the component fails on a run. I have a few ideas as to which way to have the program run, the main idea being to put the communications inside a threaded data module so that if one thread crashes then another thread can test later and the program keep going. Does this sound like a valid way to go? Any other ideas how to ensure a reliable monitoring application with a less than 100% reliable component? Thanks. P.S. Not sure these tags are the most appropriate. Tried including "system-reliability" as one, but not high enough rep to create.

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  • MySQL too many connections

    - by Webnet
    On my server I have 7 databases. Our server has 512 MB of RAM which I'm getting upgraded this evening to 2GB and has a 2.4 single processor. I've gotten an error about the connection limit exceeded. With increasing my RAM, is it ok to increase the number of connections? Currently it's set to 200 but a single page may connect to 3-4 databases considering JOINs and things. We've setup so many databases for mere organization. We have a total of about 250-300 tables in all of the databases. Any advice would be appreciated :)

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  • Cannot ssh anymore into FreeBSD 7.2 home server

    - by Gabi
    Somehow sshd stopped running and no amount of start, restart or onestart will make it go again. I normally ssh into it from a dual-boot laptop computer that shows up on the network as gabi-buntu when running Ubuntu Karmic, and as gabi-pc when running Windows XP Pro. Neither my Putty connection nor the Linux terminal can establish a ssh link anymore. Upon rebooting the server, I am greeted with "/etc/rc: WARNING: run_rc_command: cannot run /usr/sbin/sshd". In addition, a message will appear saying things like rpc.statd: failed to contact host gabi-buntu RPC: port mapper failure RPC: timed out Everything else works fine. The FreeBSD 7.2 box runs a print server, a Samba server, and an Apache server for the home wiki, via https. It also serves up NFS shares for Linux clients. Any suggestions? Thank you, Gabi Huiber

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  • VLC Ati Radeon 6870 Ubuntu 12.04 image skewed flicker

    - by Aaron
    I'm running Ubuntu 12.04 with ATI Radeon 6870 connected to my 40' Sharp TV. The video image is slightly jigged, like breaking a bit and slightly delayed. It just isn't smooth. The computer is very fast, like i7 with 12gb ram. I tried to run the same video with my mac laptop and on the tv with the same connection cable and it was running smoothly. i tried changing the video output in VLC to x11, increase caching, h264 skip loop filter to all, increase monitor refresh rate although it's already at 60 and it's an LCD tv. this is my xorg.conf : Section "ServerLayout" Identifier "amdcccle Layout" Screen 0 "amdcccle-Screen[3]-0" 0 0 EndSection Section "Module" Load "glx" EndSection Section "Monitor" Identifier "0-DFP9" Option "VendorName" "ATI Proprietary Driver" Option "ModelName" "Generic Autodetecting Monitor" Option "DPMS" "true" Option "TargetRefresh" "60" Option "Position" "0 0" Option "Rotate" "normal" Option "Disable" "false" Option "PreferredMode" "1920x1080" EndSection Section "Monitor" Identifier "0-DFP10" Option "VendorName" "ATI Proprietary Driver" Option "ModelName" "Generic Autodetecting Monitor" Option "DPMS" "true" Option "PreferredMode" "1280x1024" Option "TargetRefresh" "60" Option "Position" "0 0" Option "Rotate" "normal" Option "Disable" "false" EndSection Section "Device" Identifier "amdcccle-Device[3]-0" Driver "fglrx" Option "Monitor-DFP9" "0-DFP9" BusID "PCI:3:0:0" EndSection Section "Screen" Identifier "Default Screen" DefaultDepth 24 EndSection Section "Screen" Identifier "amdcccle-Screen[3]-0" Device "amdcccle-Device[3]-0" DefaultDepth 24 SubSection "Display" Viewport 0 0 Depth 24 EndSubSection EndSection

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  • Large keepalive_requests values are severely slowing-down Nginx

    - by Gil
    When running a bacon (43-byte transparent pixel) load test on Nginx, we have tried several keepalive_requests values (from 10 to 100,000) and the optimal value seems to be 10. Here are the server HTTP headers of this tiny reply: HTTP/1.1 200 OK Server: nginx/1.5.6 Date: Wed, 23 Oct 2013 12:39:45 GMT Content-Type: image/gif Content-Length: 43 Last-Modified: Mon, 28 Sep 1970 06:00:00 GMT Connection: keep-alive Nginx is twice slower with keepalive_requests 100000 than with keepalive_requests 10. Can you help understanding that result? Or tell what we do wrong? For reference, here is the nginx.conf file.

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  • Cannot access any remote resource after connecting to Cisco VPN on Vista

    - by Deepak Singh Rawat
    I have installed Cisco vpn client version 5.0.07.0290 on Vista Business SP2. I am able to successfully connnect to the vpn. But after connecting I am not able to access any resource in the vpn (like database, other computers in the network etc.). I have tried the following without any success : Older versions of the client Other vpn clients like Shrewsoft : same issue as the cisco vpn client Disabled Internet Connection Sharing service Installed the client in the root administrator account Run the installer as administrator Run the vpngui and ipsecdialer in XP compatibility mode and as administrator I am not sure how to troubleshoot this issue. Can somebody please help me in troubleshooting this issue? P.S : I've Zonealarm firewall, can that be an issue?

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  • stunnel: SSL-to-SSL? (for smtp/imap)

    - by nonot1
    Hello, How can I configure stunnel to accpet SSL connections, and connect then to an SSL port on a different server? Here is my setup: Our ISP's server, "Mail Server", supports smtp/imap over SSL. (Not starttls. Just over ssl.) But, I have a bunch of client machines that will only trust a specific, internal, root certificate. Thus, they can not connect to "Mail Server". For these client machines, I'd like to make a dedicated "Mail Tunnel" host that uses stunnel to listen with an in-house signed SSL certificate, and just forward data to "Mail Server" using a 2nd SSL connection. Can this be done? What would be the specific steps for Ubuntu Server 10.10? (I'm not too familiar with persistent service configuration.) Thank you

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  • openVPN Mac(Tunnelblick) all traffic over vpn

    - by Stony
    Hello@all, the problem is that we want to use openVPN here as default VPN Server. Now we have the same problem like everytime. On Windows all works fine but on Mac we have problems with the routing. When you are logged on to the network all you internet traffic goes through the vpn connection. We have set routes for this in the Serverconfig but they have no effect on the target system. Is here anybody who have a solution for this? thx for you help

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  • How much packet loss is normal?

    - by Fabian
    I started monitoring our network using SmokePing. Users occasionally complain about bad network connections, but the problems went away after some minutes usually. I now wanted to get some more quantitative information about those problems. SmokePing regularly pings servers inside our network, in a connected network and outside hosts. I only have a limited amount of control over our internal network and none at all for the connection to the outside and to the second network. I now see quite often (2-4 times a day) that packets to the second network and the outside are dropped. Most of the times it is 1-2 packets out of 20, sometimes more. Inside our internal network no packets are dropped. Is this an expected amount of packet loss, or does it indicate that something is wrong? I'm mainly wondering if I should bother the university IT department about it, or if I should just accept it as it is.

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  • Is Moving Entity Framework objects over a webservice really the best way?

    - by aceinthehole
    I've inherited a .NET project that has close to 2 thousand clients out in the field that need to push data periodically up to a central repository. The clients wake up and attempt to push the data up via a series of WCF webservices where they are passing each entity framework entity as parameter. Once the service receives this object, it preforms some business logic on the data, and then turns around and sticks it in it's own database that mirrors the database on the client machines. The trick is, is that this data is being transmitted over a metered connection, which is very expensive. So optimizing the data is a serious priority. Now, we are using a custom encoder that compresses the data (and decompresses it on the other end) while it is being transmitted, and this is reducing the data footprint. However, the amount of data that the clients are using, seem ridiculously large, given the amount of information that is actually being transmitted. It seems me that entity framework itself may be to blame. I'm suspecting that the objects are very large when serialized to be sent over wire, with a lot context information and who knows what else, when what we really need is just the 'new' inserts. Is using the entity framework and WCF services as we have done so far the correct way, architecturally, of approaching this n-tiered, asynchronous, push only problem? Or is there a different approach, that could optimize the data use?

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  • How to install GNOME desktop from DVD on CentOS 6 using the command line?

    - by alwbtc
    I have installed CentOS 6 in Virtualbox. Although I have chosen to install General Purpose GNOME Desktop, the GNOME desktop does not start. All I get is a black and white text prompt. I would like to know how I can install GNOME Desktop from the CentOS DVD. How do I mount the DVD image? How do I install GNOME desktop from command line? If I already have the GNOME Desktop installed, why doesn't it start? How can I check from command line that I have GNOME installled? This virtual machine does not have internet connection, that's why I want to install the GNOME Desktop from DVD.

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  • Windows 8 cannot connect remotely to Windows Server 2012

    - by raza naqvi
    I have installed Windows Server 2012 and then configured remote applications. At first it was working fine and I could be able to connect remotely and run remote applications from Windows 8 clients. But after few days the following error occurred: Remote Desktop Connection This computer can't connect to the remote computer. Try connecting again. If the problem continues, contact the owner of the remote computer or your network administrator. However I still can connect from Windows 7 without any problem. Only Windows 8 has a problem and cannot connect remotely. Neither remote apps nor RDP is working.

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  • Is there an easy way to configure an Ubuntu system to function as a proxy/file server from behind an NAT?

    - by amol.kamath
    Sorry for the long question, but the situation/desire is quite complex. Here is my setup: I have a laptop which I carry around everywhere and I have a desktop sitting at home, connected to the internet through a router using NAT. My objective is to create a connection from my laptop to my desktop that can allow me to (in order of priority): Use the desktop as a proxy server Access files on the desktop remotely Control said desktop from the laptop using VNC or similar. Now here is the scene. I have already looked up and tried several ways to achieve the above goals. Teamviewer - I used it and didn't like it. This is not an option. SSH - This seems ideal, I have figured a way to use this for both proxy and file sharing. However, I am currently unable to connect it due to the NAT. I have a separate thread trying to get that to work here. VPN - I've figured out how to use this method for proxy, but not file sharing. However this faces the same problem as the above: I can't get it to connect through the NAT. Does anyone have any other solutions for what I want? Otherwise, if there are solutions to connecting through the NAT, please tell me (in the other thread). Thanks

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  • It happens only at Devoxx ...

    - by arungupta
    After attending several Java conferences world wide, this was my very first time at Devoxx. Here are some items I found that happens only at Devoxx ... Pioneers of theater-style seating - This not only provides comfortable seating for each attendee but the screens are very clearly visible to everybody in the room. Intellectual level of attendees is very high - Read more explanation on the Java EE 6 lab blog. In short, a lab, 1/3 of the content delivered at Devoxx 2011, could not be completed at other developer days in more than 1/3 the time. Snack box for lunches - Even though this suits well to the healthy lifestyle of multiple-snacks-during-a-day style but leaves attendees hungry sooner in the day. The longer breaks before the next snack in the evening does not help at all. Fortunately, Azure cupcakes and Android ice creams turned out to be handy. I finally carried my own apple :-) Wrist band instead of lanyard - The good part about this is that once tied to your hand then you are less likely to forget in your room. But OTOH you are a pretty much a branded conference attendee all through out the city. It was cost effective as it costed 20c as opposed to 1 euro for the lanyard. Live streaming from theater #8 (the biggest room) on parleys.com All talks recorded and released on parleys.com over next year. This allows attendees to not to miss any session and watch replay at their own leisure. Stephan promised to start sharing the sessions by mid December this year. No need to pre-register for a session - This is true for most of the conferences but bigger rooms (+ overflow room for key sessions) provide sufficient space for all those who want to attend the session. And of course all sessions are available on parleys.com anyway! Community votes on whiteboard - Devoxx attendees gets a chance to vote on topics ranging from their favorite non-Java language, operating system, or love from Oracle. Captured pictures at the end of Day 2 are shown below. Movie on the last but one night - This year it was The Adventures of Tintin and was lots of fun. Fries with mayo - This is a typical Belgian thing. Guys going in ladies room to avoid the long queues ... wow! Tweet wall everywhere and I mean literally everywhere, in rooms, hallways, front desk, and other places. The tweet picking algorithm was not very clear as I never saw my tweet appear on the wall ;-) You can also watch it at wall.devoxx.com. Cozy speaker dinner with great food and wine List of parallel and upcoming sessions displayed on the screen - This makes the information more explicit with the attendees. REST API with multiple mobile clients - This API is also used by some other conferences as well. And there always is iphone.devoxx.com. Steering committee members were recognized multiple times. The committee members were clearly identifiable wearing red hoodies. The wireless SSID was intuitive "Devoxx" but hidden to avoid some crap from Microsoft Windows. All of 9000 addresses were used up most of the times with each attendee having multiple devices. A 1 GB fibre optic cable was stretched to Metropolis to support the required network bandwidth. Stephan is already planning to upgrade the equipment and have a better infrastructure next year. Free water, soda, juice in a cooler Kinect connected to TV screens so that attendees can use their hands to browse through the list of sesssions. #devoxxblog, #devoxxwomen, #devoxxfrance, #devoxxgreat, #devoxxsuggestions And Devoxx attendees are called Devoxxians ... how cool is that ? :-) What other things do you think happen only at Devoxx ? And now the pictures from the community whiteboard: And a more complete album (including bigger pics of community votes) is available below:

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  • Inverted LACK Table Serves as a Perfect Gear Rack [DIY]

    - by Jason Fitzpatrick
    We’ve seen IKEA gear hacked to hold audio and computer gear before, but this mod adds in a simple and effective twist. LACK end tables are, conveniently, the same width as a standard server rack. This makes it super simple for DIYers to mount their gear right into the legs of the table with no modification necessary. In this case, however, Winston Smith included a clever update to the mod. Rather than leave it like a standard table, he flipped the table upside down for increased stability and a stronger connection between the legs of his improvised audio rack and the table-top-turned-floor-plate. He then finished it with a matching LACK shelf piece to serve as a turn-table stand. His gear is stored cleanly, off the floor, and in a sturdy container all for about $25–a definite bargain when it comes to storage racks. Hit up the link below for more information and pictures. LACK Rack & EXPEDIT Desktop [IKEA Hackers] HTG Explains: How Windows Uses The Task Scheduler for System Tasks HTG Explains: Why Do Hard Drives Show the Wrong Capacity in Windows? Java is Insecure and Awful, It’s Time to Disable It, and Here’s How

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  • Any worker agent monitors for appliance based load balancers?

    - by Zethris
    Looking to find out to what extent an appliance load balancer can monitor servers for both failover (say for example a service like apache tomcat fails) and load balancing? Right now it looks like it's just port monitoring/connection tracking and healthcheck urls that it will heartbeat and detect as down if it doesn't come back with a finished request. We are looking at the Kemp 3500 or Loadbalancer.org solutions. Is there any sort of web application level monitoring/load balancing that these load balancers can offer that can more directly interact with the servers it's balancing?

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