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  • The Truth About Wi-Fi Signal Strength

    - by Jason Fitzpatrick
    Whether it’s the structural layout of your home or just ghosts in the machine, we’re all familiar with inexplicable Wi-Fi dead spots. One extra puzzling situation, unseen in the comic here, is when the addition of another wireless node actually causes issues with your Wi-Fi connectivity. There’s nothing more frustrating than having twice the Wi-Fi node power and half the actual signal at your laptop. If you’re looking to extend your Wi-Fi network coverage headache free, check out our guides to doing so with Tomato-powered routers and DD-WRT-powered routers. Your Wireless Internet Signal Strength [via FailDesk] How to Factory Reset Your Android Phone or Tablet When It Won’t Boot Our Geek Trivia App for Windows 8 is Now Available Everywhere How To Boot Your Android Phone or Tablet Into Safe Mode

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  • How to Run PowerShell Commands on Remote Computers

    - by Chris Hoffman
    PowerShell Remoting allows you to run individual PowerShell commands or access full PowerShell sessions on remote Windows systems. It’s similar to SSH for accessing remote terminals on other operating systems. PowerShell is locked-down by default, so you’ll have to enable PowerShell Remoting before using it. This setup process is a bit more complex if you’re using a workgroup – for example, on a home network — instead of a domain. How to Make Your Laptop Choose a Wired Connection Instead of Wireless HTG Explains: What Is Two-Factor Authentication and Should I Be Using It? HTG Explains: What Is Windows RT and What Does It Mean To Me?

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  • VM can't ping LAN name but sees it via nslookup

    - by amphibient
    I am trying to connect to a network resource from my 10.04.4 VM (VMware Fusion) but the destination is unreachable by name. What is weird is that the name is visible in DNS: >nslookup my.name Server: 123.45.67.89 Address: 123.45.67.89#53 Non-authoritative answer: Name: my.name Address: 10.20.30.40 I can reach it (via ping) by the IP address (10.20.30.40) but not the name and I thought that was weird because the DNS clearly resolves the name. What can I do to enable access to this resource via the name?

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  • ESXi 5 VM Putty session hangs, vSphere client timing out

    - by user192702
    First of all I believe this is a ESXi issue but let me know if you have seen this. It started about a year ago when I noticed occasionally when I putty via SSH to my VM guests, if I do anything that makes it to display a lot of things at once, the session will hang and I have to start a new one quite often only to find the same behaviour. What I meant by display a lot of things can be any of the following: 1) tail -f filename 2) Paste a long command 3) less filename If I type in one character at a time this won't happen. I tried searching online and it always point me to flow control settings and the various suggestions I've tried have never been able to resolve the issue. Since last week, I've noticed I'm not able to connect to my POP3 server from Outlook (it's timing out from Outlook's perspective). Today I tried to connect to the ESXi via vSphere client and it gives me a time out also. Exact behavior and error I saw is similar to the one posted at the following URL but the suggested technique also failed to resolve the issue. http://davidcocke.blogspot.hk/2012/02/unable-to-login-with-vsphere-client.html Has anyone experienced this before? Any suggestions on how to troubleshoot this?

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  • What is Happening vs. What is Interesting

    - by Geertjan
    Devoxx 2011 was yet another confirmation that all development everywhere is either on the web or on mobile phones. Whether you looked at the conference schedule or attended sessions or talked to speakers at any point at all, it was very clear that no development whatsoever is done anymore on the desktop. In fact, that's something Tim Bray himself told me to my face at the speakers dinner. No new developments of any kind are happening on the desktop. Everyone who is currently on the desktop is working overtime to move all of their applications to the web. They're probably also creating a small subset of their application on an Android tablet, with an even smaller subset on their Android phone. Then you scratch that monolithic surface and find some interesting results. Without naming any names, I asked one of these prominent "ah, forget about the desktop" people at the Devoxx speakers dinner (and I have a witness): "Yes, the desktop is dead, but what about air traffic control, stock trading, oil analysis, risk management applications? In fact, what about any back office application that needs to be usable across all operating systems? Here there is no concern whatsoever with 100% accessibility which is, after all, the only thing that the web has over the desktop, (except when there's a network failure, of course, or when you find yourself in the 3/4 of the world where there's bandwidth problems)? There are 1000's of hidden applications out there that have processing requirements, security requirements, and the requirement that they'll be available even when the network is down or even completely unavailable. Isn't that a valid use case and aren't there 1000's of applications that fall into this so-called niche category? Are you not, in fact, confusing consumer applications, which are increasingly web-based and mobile-based, with high-end corporate applications, which typically need to do massive processing, of one kind or another, for which the web and mobile worlds are completely unsuited?" And you will not believe what the reply to the above question was. (Again, I have a witness to this discussion.) But here it is: "Yes. But those applications are not interesting. I do not want to spend any of my time or work in any way on those applications. They are boring." I'm sad to say that the leaders of the software development community, including those in the Java world, either share the above opinion or are led by it. Because they find something that is not new to be boring, they move on to what is interesting and start talking like the supposedly-boring developments don't even exist. (Kind of like a rapper pretending classical music doesn't exist.) Time and time again I find myself giving Java desktop development courses (at companies, i.e., not hobbyists, or students, but companies, i.e., the places where dollars are earned), where developers say to me: "The course you're giving about creating cross-platform, loosely coupled, and highly cohesive applications is really useful to us. Why do we never find information about this topic at conferences? Why can we never attend a session at a conference where the story about pluggable cross-platform Java is told? Why do we get the impression that we are uncool because we're not on the web and because we're not on a mobile phone, while the reason for that is because we're creating $1000,000 simulation software which has nothing to gain from being on the web or on the mobile phone?" And then I say: "Because nobody knows you exist. Because you're not submitting abstracts to conferences about your very interesting use cases. And because conferences tend to focus on what is new, which tends to be web related (especially HTML 5) or mobile related (especially Android). Because you're not taking the responsibility on yourself to tell the real stories about the real applications being developed all the time and every day. Because you yourself think your work is boring, while in fact it is fascinating. Because desktop developers are working from 9 to 5 on the desktop, in secure environments, such as banks and defense, where you can't spend time, nor have the interest in, blogging your latest tip or trick, as opposed to web developers, who tend to spend a lot of time on the web anyway and are therefore much more inclined to create buzz about the kind of work they're doing." So, next time you look at a conference program and wonder why there's no stories about large desktop development projects in the program, here's the short answer: "No one is going to put those items on the program until you start submitting those kinds of sessions. And until you start blogging. Until you start creating the buzz that the web developers have been creating around their work for the past 10 years or so. And, yes, indeed, programmers get the conference they deserve." And what about Tim Bray? Ask yourself, as Google's lead web technology evangelist, how many desktop developers do you think he talks to and, more generally, what his frame of reference is and what, clearly, he considers to be most interesting.

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  • Need to set up shared storage for Guest virtual machines that are running on a Xen host

    - by Sajith
    My environment: I am doing these things at home with the purpose of learning about virtualization techniques. My machine have quad core processor that supports Intel-VT and 8GB RAM. XEN is the virtualization platform. In short, all domUs are LVM based. Mainly I have two questions; I need to have shared storage for these VMs. Something like NFS / NAS / iSCSI etc. However, I don't know which one is the best solution. Therefore, can someone tell me which suits best? Please note that, this shared storage need to be accessed by the other physical machines in the network. How to implement the selected solution for question #1? Any tutorials / guidelines / ebooks will be a great help and highly appreciated. Thank you in advance :)

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  • How To See Who Logged Into a Computer and When

    - by Chris Hoffman
    Have you ever wanted to monitor who’s logging into your computer and when? On Professional editions of Windows, you can enable logon auditing to have Windows track which user accounts log in and when. The Audit logon events setting tracks both local logins and network logins. Each logon event specifies the user account that logged on and the time the login took place. You can also see when users logged off. How to Get Pro Features in Windows Home Versions with Third Party Tools HTG Explains: Is ReadyBoost Worth Using? HTG Explains: What The Windows Event Viewer Is and How You Can Use It

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  • How do I get the Netgear N150 USB wifi adapter working on 12.04?

    - by Jon
    Just installed latest version of ubuntu. I'm using a Netgear N150 Wireless USB Micro Adapter WNA1000M which keeps asking for network password over and over. I read elsewhere that I needed to install the latest driver for my chipset (RTL8188CUS) which I have and still no joy. If I run the steps listed in this thread while connected through ethernet, the wireless will connect just fine. If I disconnect the ethernet, the wifi will even continue to work, but after a restart or two I will lose connection. If I repeat the steps listed in the aforementioned thread, it will not re-connect wifi unless I run those steps while connected to ethernet.......so strange...

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  • How do I get a D-Link DWL-G520 working?

    - by human33
    I have Ubuntu 12.04 on an older desktop PC, and I am finding it much harder to connect to a wifi connection than it should be. I have an iPhone with which I want to tether to it with Mifi 4.0, but I need to install ipheth which I can't do without internet on that computer. I am typing from my other windows pc with which i can download and move hings with thumb drives, but haven't gotten keryx to work. I also found a D-Link DWL-G520 HIGH SPEED 2.4GHZ (802.11G) WIRELESS 108MBPS PCI ADAPTER which I installed, but can't find a driver to put on a flashdrive to use it. If anybody has any ideas, they are appreciated. I am a noob, and I don't want to have to move the comp. downstairs to plug into the modem. PS: I also have a netgear USB network adapter, which doesn't work with my Ubuntu.

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  • Wireless suddenly dropping with a Ralink RT2870

    - by cwwk
    I have a Linksys WUSB600N v1 Dual-Band Wireless-N Network Adapter Ralink RT2870 USB dongle that worked flawlessly in 11.10. Since upgrading, I can't keep a connection for more than five minutes. The wild world of Google was unable to provide a solution, and I would rather not downgrade although that remains a possibility. Results of syslog: slack@slack:~$ tail /var/log/syslog Apr 26 20:26:10 slack AptDaemon: INFO: Initializing daemon Apr 26 20:26:10 slack AptDaemon.PackageKit: INFO: Initializing PackageKit compat layer Apr 26 20:26:10 slack dbus[972]: [system] Successfully activated service 'org.freedesktop.PackageKit' Apr 26 20:26:10 slack AptDaemon.PackageKit: INFO: Initializing PackageKit transaction Apr 26 20:26:10 slack AptDaemon.Worker: INFO: Simulating trans: /org/debian/apt/transaction/aaed4e38eb3c41ad86d2bab6ca03ee7c Apr 26 20:26:10 slack AptDaemon.Worker: INFO: Processing transaction /org/debian/apt/transaction/aaed4e38eb3c41ad86d2bab6ca03ee7c Apr 26 20:26:12 slack dbus[972]: [system] Activating service name='com.ubuntu.SystemService' (using servicehelper) Apr 26 20:26:12 slack dbus[972]: [system] Successfully activated service 'com.ubuntu.SystemService' Apr 26 20:30:26 slack AptDaemon.PackageKit: INFO: Get updates() Apr 26 20:30:27 slack AptDaemon.Worker: INFO: Finished transaction /org/debian/apt/transaction/aaed4e38eb3c41ad86d2bab6ca03ee7c Any suggestions?

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  • Tab Sweep - Devoxx questions, GlassFish Rest, APAC Java, Lift, JEPs, tools, ...

    - by alexismp
    Recent Tips and News on Java, Java EE 6, GlassFish & more : • Submit a question for Devoxx 2011 Keynotes (Moderator questions) • Devoxx for Java developers (The Java blog) • GlassFish REST Client: ComplexExample.java (Jason) • Oracle Technology Network site for Asia-Pacific developers (OTN APAC) • Notes on deploying Lift apps to GlassFish (Antonio) • Using JSR-250's @PostConstruct Annotation to Replace Spring's InitializingBean (DZone) • The future is in the JEPs (Stephen) • Comparison of Eclipse 3.6 and IntelliJ IDEA 10.5: Pros and Cons (Dzone)

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  • Xerox 3100 mfp printer/ scanner not working not working

    - by Nikos
    I have installed the latest version of Ubuntu on my system. My problem is I cannot find the proper drivers for my printer/ scanner:Xerox Phaser 3100 MFP. Although it is recognised by the system and my print jobs appear as completed, in fact they are not. Also I have a problem with my wireless connectio. Although it is configured in the network settings, connection is not successful, unless I restart my router. What can I do? Thank you in advance

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  • Partner Webcast: Service Automation - September 19th, 11:00am PST (20:00 CET)

    - by Richard Lefebvre
    LIVE PARTNERCAST Save the Date: September 19th, 11:00am Pacific Streaming Live at partners.oracle.com Hosted by Rachel Lunt, Director of Global Business Unit Partner Enablement Topic: Service Automation Guests: Patrick Ty, Sr. Solutions Manager of Partner Enablement for Oracle Commerce. Jim Richmond, Director of US eBusiness Consulting at RealDecoy. John Sekevitch, Managing Director for Aaxis Commerce. Karl Helfner, Partner Enablement Manager covering RightNow CX Cloud Service at Oracle. How do I view a live OPN PartnerCast? PartnerCasts can be viewed once a month, live from the Oracle PartnerNetwork homepage. Audience members have the opportunity to submit questions during the show via chat or social media outlets, many of which are answered on-air. Missed the last PartnerCast? Replays of each segment are published to the replay tab here, the Oracle Media Network, and Oracle PartnerNetwork’s YouTube channel.  You can also subscribe to the PartnerCast RSS Feed and view through your favorite newsreader

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  • Internet stopped working suddenly on 12.04

    - by Daniel
    My laptop was running smoothly until yesterday. Today, I can't connect to the Internet at home anymore. I am only able to access the router, but no Internet access. A have a Dell Latitude E6320 with Ubuntu 12.04. At my job, I don't have any problems connecting this laptop both via Wireless and Ethernet. At home, if I try connecting it through Windows, it does work fine. I even checked the MAC address and it's OK. My other laptop, which also runs Ubuntu, is not facing this problem. I have already tried to restart and downgrade network-manager package and its dependencies. Can anyone help me please? I am afraid, I will have to reinstall everything.

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  • Wifi is connected but internet not working?

    - by Philip
    I have a lenovo x230 running ubuntu 12.04lts. I've been using it just fine for a while, but all of a sudden the internet's stopped working. It's connected to the router just fine (I can see the antenna bars saying it's connected) but when I try to go to a webpage, it's just loading forever. I've tried the fix listed here (http://ubuntuforums.org/showthread.php?t=1985079) but it hasn't done anything (the instructions are a little confusing though). I'm booting windows 7 right now and the internet works just fine when I'm on windows, so I know it must be a problem with ubuntu. I haven't touched any network settings before this problem happened, and I've been using it just fine for months, so I don't know why I'm getting this problem all of a sudden. Oh and I haven't updated anything in a few weeks (you know when the update manager pops up every so often listing all the things there's an update for) so I know it's not some update that broke it.

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  • Wireless very slow. Changed mode from Infracstructure to Ad-hoc

    - by Dan
    This is my first time using Linux so go easy on me :) I downloaded and installed Mint 11 couple of days ago and I was having trouble connecting to internet with wifi. Actually it says it connects but does not load any webpages. I tried to get help from this model of laptop owners (Asus G73SW) who uses mostly Ubuntu but they said they never had any problem right from install. So I decided to try out Ubuntu 11.04. Same thing. BUT now I get internet after going into Network Connection edit and changing the Mode from Infracstructure to Ad-Hoc. I get load pages but very slow. And if I'm not mistaken, as I was writing this paragraph, I might have been disconnected. However the wifi bar is full. Please help me this newb because I really want to keep using Ubuntu but I might just have to go back to W7 if nothing can be done. Thank you!

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  • Encrypting peer-to-peer application with iptables and stunnel

    - by Jonathan Oliver
    I'm running legacy applications in which I do not have access to the source code. These components talk to each other using plaintext on a particular port. I would like to be able to secure the communications between the two or more nodes using something like stunnel to facilitate peer-to-peer communication rather than using a more traditional (and centralized) VPN package like OpenVPN, etc. Ideally, the traffic flow would go like this: app@hostA:1234 tries to open a TCP connection to app@hostB:1234. iptables captures and redirects the traffic on port 1234 to stunnel running on hostA at port 5678. stunnel@hostA negotiates and establishes a connection with stunnel@hostB:4567. stunnel@hostB forwards any decrypted traffic to app@hostB:1234. In essence, I'm trying to set this up to where any outbound traffic (generated on the local machine) to port N forwards through stunnel to port N+1, and the receiving side receives on port N+1, decrypts, and forwards to the local application at port N. I'm not particularly concerned about losing the hostA origin IP address/machine identity when stunnel@hostB forwards to app@hostB because the communications payload contains identifying information. The other trick in this is that normally with stunnel you have a client/server architecture. But this application is much more P2P because nodes can come and go dynamically and hard-coding some kind of "connection = hostN:port" in the stunnel configuration won't work.

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  • No enable mobile broadband option

    - by noboot
    I just migrated from Wubi to actual dual booting Ubuntu and Windows 7 my machine is an Aspire 4750G. When I had (Wubi) Ubuntu 12.04 LTS 64-bit the network applet included the "enable mobile broadband" option. Now, I am using Ubuntu 12.04 LTS (32-bit) actual install as the 64-bit does not work. And my problem is that it does not show the "enable mobile broadband" option. This is so weird considering that I did not encounter the same problem in Wubi based installation.. Kindly help.. I have managed to connect to the internet via Sakis3G Script, still I find the previous method a lot more convenient..

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  • ubuntu 12.04 internet stopped working

    - by Daniel
    My laptop was running smoothly until yesterday. Today, I can't connect to the internet at home anymore. I am only able to access the router, but no internet access. A have a Dell Latitude E6320 with ubuntu 12.04. At my job, I don't have any problems connecting this laptop both via wireless and ethernet. At home, if I try connecting it through Windows it does work fine. I even checked the MAC addess and it's OK. My other laptop, which also runs ubuntu, is not facing this problem. I have already tried to restart and downgrade network-manager package and its dependecies. Anyone can help me please??? I am affraid I will have to reinstall everything...

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  • Postfix relay all mail through SES except for one sending domain / address

    - by Kevin
    I'm thinking this is really really super simple, but I can't figure out what I need to do. I don't mess with Postfix much (Just let it run and do its thing) so I've got no idea where to even start with this. We have postfix currently configured to relay all mail out through SES using the code below. We need to modify this so that emails sent from one of our domains (domain.com) DO NOT go through SES. Everything else should continue to flow out through the SES connection. I'm assuming this is like a one line thing but my google skills are not helping me at all. relayhost = email-smtp.us-east-1.amazonaws.com:25 smtp_sasl_auth_enable = yes smtp_sasl_security_options = noanonymous smtp_sasl_password_maps = hash:/etc/postfix/sasl_passwd smtp_use_tls = yes smtp_tls_security_level = encrypt smtp_tls_note_starttls_offer = yes smtp_tls_CAfile = /etc/ssl/certs/ca-certificates.crt smtp_destination_concurrency_limit = 450 Update I have created sender_transport file in /etc/postfix. In it is @domain.com smtp: I then ran this through postmap and placed sender_dependent_default_transport_maps = hash:/etc/postfix/sender_transport above the above block of code and restarted postfix, but still all email is going out through SES. Log after sending Oct 22 14:38:48 web postfix/smtp[19446]: 4B19D640002: to=<[email protected]>, relay=email-smtp.us-east-1.amazonaws.com[54.243.47.187]:25, delay=1.4, delays=0.01/0/0.92/0.44, dsn=2.0.0, status=sent (250 Ok 00000141e21b181f-ee6f7c4f-f0f5-4b0f-ba69-2db146a4f988-000000) Oct 22 14:38:48 web postfix/qmgr[19435]: 4B19D640002: removed I don't think this log is what you're looking for, but it's the only thing that is logged when mail goes out, and this is with me running /usr/sbin/postfix -v start manually and not with the init script.

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  • RightNow Knowledge Zone and specialisation material

    - by Richard Lefebvre
    Have you visited and registered to the Oracle RightNow Knowledge Zone ? It is loaded with meaningfull information and material to support your RightNow business enablement, including this Oracle RightNow CX Cloud Service 2012 Essentials Exam Study Guide(PDF) which includes exam sample question and will help you preparing your specialization! For information the RightNow specialization, please visit the Specialization guide which offers a consolidated view of the Specialization Competency readiness for all launched and planned Specialization, and the Criteria that need to be met for joining the OPN Specialized program, as well as the latest information on Oracle Partner Network certification exams available here.

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  • TortoiseSVN and Subclipse icons not updating with SVN? [migrated]

    - by Thomas Mancini
    I have a repository on a network share with working directories on two separate machines. Upon making changes to my local working directory and committing them, the icons are not changing on the other developer's machine. If the Dev goes to Team Synchronize with Repository it shows the changes in the Synchronize view within Eclipse, however I was expecting the icon next to the project to change if it is not in sync with the repository. The same happens with TortoiseSVN in Windows Explorer. If we right click and check the repository for modifications it shows them, however the overlay icon on the directory is still the green check box. Am I just misinterpreting what I expect to happen, or is there a way to get these icons to change if the project is no longer in sync with the repository?

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  • Team Fortress 2 Is Now Free [Gaming]

    - by Jason Fitzpatrick
    Wildly popular computer game Team Fortress 2 is now free Previously $10, Valve dropped the price for Team Fortress 2 to $0. The new model is a “freemium” one wherein the majority of the game is free but you can purchase small upgrades in-game (like expanding your backpack from 50 slots to 300 slots to hold more gear or purchasing items instead of searching them out in the game). Check out the trailer and then hit up the link below to grab a copy. Team Fortress 2 [via Mashable] What is a Histogram, and How Can I Use it to Improve My Photos?How To Easily Access Your Home Network From Anywhere With DDNSHow To Recover After Your Email Password Is Compromised

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  • Graphic card for parallel programming vs traditional methods

    - by Sambatyon
    With a simple search in amazon one can see that the modern approach for parallel programming is to use your graphic card. However I am still a little bit skeptical about it. My last computer has an 8 core CPU which I need is enough for basic all my parallel needs, if I need more I will probably use MPI through a network using my old machines. All in all, Why and/or when should I use CUDA or another method which uses my graphic card instead of traditional methods like pthreads, java threads, boost threads or the new C++ 11 threads? What about using processes?

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  • How to reverse file ownership and permission settings

    - by pandisvezia
    I installed LAMP and WordPress on my system a week ago. Since I couldn't create Child Themes in WordPress and work with PHP folders for my other projects collocated in var/www without using Nautilus I wanted to solve the permissions issue. I hoped to bring a solution carrying out the commands on this page for my WordPress folder: http://wiki.apache.org/httpd/FileSystemPermissions. This allowed me to play with any file in the folder like creating and modifying .css files through WP Admin, etc. But after a restart I discovered that I can't change DNS settings of my network connections in the list anymore because it is asking me the root password and even though I enter the password it doesn't let me do the action giving "insufficient privileges" error. Can you help me correct the mistake I possibily made during the configuration and, maybe, configure again the permission and ownership settings for var/www/somefolder as it is adviced to be configured under general circumstances? Thanks in advance!

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