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  • LAMP Server: (104) Connection reset by peer

    - by StephenM
    A user reported the following problem when attempting to visit www.airlinemogul.com. The requested URL could not be retrieved While trying to retrieve the URL: http://www.airlinemogul.com/airlinemogul/index.php The following error was encountered: * Read Error The system returned: (104) Connection reset by peer An error condition occurred while reading data from the network. Please retry your request. There are no other issues reported by any other users, so it may be an isolated issue. Could anyone give me any suggestions as to how I could investigate the problem further or find a solution? Thanks.

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  • What is the difference between apt-get and dpkg?

    - by William F. Hammond
    Both apt-get and dpkg can be used to install and remove packages. When to use which? Context: I'm in stuck in package limbo between 10.04.4 LTS and 12.04.1 LTS after an attempted upgrade via the package manager. For example, to fix things I wanted to remove "skype" so that things it depends on could be freed up. But "aptitude" (my normal package management tool) refused to remove it. The advice at http://administratosphere.wordpress.com/2011/11/02/rescuing-an-interrupted-ubuntu-upgrade/ seems helpful but not adequate to resolve my package conflicts. Also there's a strange thing where the grub menu seems not to be properly interpreted, but eventually I get the splash screen with "/ is not ready yet or not present. Continue to wait; or press S to skip or M to recover manually." Manual recovery puts me in a single user shell where I can easily remount / as rw and bring up the network. If I become myself, the command line seems quite robust, but, there seems to be no way to get X11 going.

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  • Web.NET event coming in October

    - by Chris Massey
    If you’re a web developer in Europe (or would like an excuse to travel to Europe), you should definitely take a look at the Web.NET event coming in October. It’s being organized by two Italian web maestros (Simone Chiaretta and Ugo Lattanzi) and the session list looks fantastic. The event site pretty much speaks for itself, but here’s a quick version: It’s a free one-day event on October 20th, with a huge variety of great sessions by great speakers, all 100% focused on web development. There’s a pizza-fuelled hackathon in the evening; thrills, spills and hot new skills. It’s a great chance to network with the local (in relative terms) web development community. It’s free (although all donations are very greatly appreciated). It’s in Milan, darling. Here’s what you need to do: Go and register on www.webnetconf.eu, and vote on which sessions you think look the most interesting. I know this will be a difficult process – it’s *very* hard to choose – but persevere! Grab your place when the free tickets become available early next month (places are limited). Come to Milan in October, learn some new skills, meet some great people, and maybe build something awesome if you feel like staying up late. I’ll be there, and hopefully I’ll see you on the day.

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  • Top Ten Reasons to Attend the 2015 Oracle Value Chain Summit

    - by Terri Hiskey
    Need justification to attend the 2015 Oracle Value Chain Summit? Check out these Top Ten Reasons you should register now for this event: 1. Get Results: 60% higher profits. 65% better earnings per share. 2-3x greater return on assets. Find out how leading organizations achieved these results when they transformed their supply chains. 2. Hear from the Experts: Listen to case studies from leading companies, and speak with top partners who have championed change. 3. Design Your Own Conference: Choose from more than 150 sessions offering deep dives on every aspect of supply chain management: Cross Value Chain, Maintenance, Manufacturing, Procurement, Product Value Chain, Value Chain Execution, and Value Chain Planning. 4. Get Inspired from Those Who Dare: Among the luminaries delivering keynote sessions are former SF 49ers quarterback Steve Young and Andrew Winston, co-author of one of the top-selling green business books, Green to Gold. 5. Expand Your Network: With 1500+ attendees, this summit is a networking bonanza. No other event gathers as many of the best and brightest professionals across industries, including tech experts and customers from the Oracle community. 6. Improve Your Skills: Enhance your expertise by joining NEW hands-on training sessions. 7. Perform a Road-Test: Try the latest IT solutions that generate operational excellence, manage risk, streamline production, improve the customer experience, and impact the bottom line. 8. Join Similar Birds-of-a-Feather: Engage industry peers with similar interests, or shared supply chain communities, in expanded roundtable discussions. 9. Gain Unique Insight: Speak directly with the product experts responsible for Oracle’s Value Chain Solutions. 10. Save $400: Take advantage of the Super Saver rate by registering before September 26, 2014.

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  • Why is this static routing not working ?

    - by geeko
    Greeting gurus, I'm trying to develop a DHCP enforcement extension like Microsoft NAP. My trick to block dynamic-IP requesting machines (that don't meet certain policy) is to strip the default gateway (no default gateway) stated in the IP lease and set the lease subnet mask to 255.255.255.255. Now I need the blocked machines to be able to reach some specific locations (IPs) on the network. To allow for this, I'm including some static routes in the lease. For example, I'm including 10.10.10.11 via router 10.10.10.254 (the one to which the blocked machine that needs to access 10.10.10.11 is connected). Unfortunately, as soon as I set the default gateway to nothing, blocked machines cannot reach any of the added static routes. I also tried classless static routes. Any ideas ? any one knows how MS NAP actually do it ? Geeko

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  • DNS on Redhat - rdnc: no server specified and no default

    - by Syahmul Aziz
    Hi all. The error as shown in the 2 pictures below: The configurations for named.conf and the zones files as shown below: After applying "alveso" suggestion below. Now, I think there is no error but I still can't ping my own domain www.p0864868.com (10.0.0.1) nor can I do host or nslookup as shown on previous pictures. PLease assist. Thank you in advance. I also attached my the changes that I made to my named.conf as well as my resolve.conf configs as shown below: progress 2: turned on logging by typping "rndc queylog" The output as below when I pinged p0864868.com progress 3: changed permission of 10-0-0.zone and p086868.zone to 644 named:named Still can't ping www.p0864868.com or execute host command. It says something like network unreachable. I don't understand why it refer to I don't what address is that.

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  • hardware addressing and configurable addressing scheme

    - by Zia ur Rahman
    basically i want to ask question about configurable addressing scheme for LAN interface hardware. i have read about it from a book, some main points are given by a configurable addressing scheme provides a mechanism that a customer can use to set a physical address.The mechanism can be manual (the switches that must be set when the interface is first installed).or an electronic memory such as an EPROM that can be downloded from the computer(what does this means). Most hardware needs to be configured only once- configuration is usually done when the hardware is first installed. Question:Suppose a network administrator configures the LAN interface hardware (assigns the address) when he installs it. Now later on if he needs to change the physical address of the device can he change it? Or in this addressing scheme the hardware can only be configured once and we can not reconfigure it later on.

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  • Ubuntu-installer fails preseed configuration file

    - by user76171
    I try to install Ubuntu 12.04 over network unattended. I installed a DHCP server (Dnsmasq), a TFTP server (tftpd-hpa), I got the netboot.tar.gz archive with the pxelinux.0 file, the pxelinux.cfg directory, the linux kernel and the initrd.gz image and I put a preseed file into my web server. Dnsmasq, tftpd-hpa, pxelinux and Apache are all on the same machine. The PCs MB doesn’t support PXE, so I use iPXE and boot it from a CD. The PC gets an IP from the DHCP, then iPXE loads #pxelinux.cfg/default, which I edited like this: timeout 5 prompt 0 default install label install kernel ubuntu-installer/i386/linux append vga=normal locale=en_GB setup/layoutcode=sl_SI console-setup/layoutcode=sl_SI netcfg/choose_interface=auto initrd=ubuntu-installer/i386/initrd.gz netcfg/get_hostname=ubuntux preseed/url=#http://192.168.10.10/ins/preseed.cfg Then it loads the linux kernel and the initrd.gz image. Then I got a question: Detect keyboard layout? I desided to bother with this later. So I answer No, and then twice on Englishjust to get trough and then I get to the error: The installer failed to process the preconfiguration file from #http://192.168.10.10/ins/preseeed.cfg. The file may be corrupt. I created the file myself and copied the d-I commands into it. I also tried to get the preseed.cfg over a web browser and it works fine. So why is the installer failing?

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  • Linux stretch cluster: MD replication, DRBD or Veritas?

    - by PieterB
    For the moment there's a lot of choices for setting up a Linux cluster. For cluster manager: you can use Red Hat Cluster manager, Pacemaker or Veritas Cluster Server. The first one has the most momentum, the second one comes by default with RH subscriptions and the last one is very expensive and has a very good reputation ;-) For storage: - You can replicate LUN's using software raid / md device - You can use the network using DRBD replication, which offers a bit more flexibility - You can use Veritas Storage Foundation technology to talk to your SANs replication technology. Anyone has any recommandations or experience with these technologies?

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  • Working WCF WebServices with NLB server

    - by gguth
    Im starting the architecture of a new project using WCF, but im not the right person to make some network considerations, so im doing some research but cannot find the answers to these questions: We´ll host the WCF service in a common Windows Service app in 2 servers and we´ll have another server to make the Load-Balancing job using the WNLB. The fact that we are hosting the WCF in a Windows Service app can disturb the NLB job? Before my research i thought the load balancing was tought to configure, but with NLB it seems to be very simple, its really that simple? Note: The binding will be basicHttpBinding

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  • Windows Azure and Server App Fabric &ndash; kinsmen or distant relatives?

    - by kaleidoscope
    Technorati Tags: tinu,windows azure,windows server,app fabric,caching windows azure If you are into Windows Azure then it would be rather demeaning to ask if you are aware of Windows Azure App Fabric. Just in case you are not - Windows Azure App Fabric provides a secure connectivity service by means of which developers can build distributed applications as well as services that work across network and organizational boundaries in the cloud. But some of you may have heard of another similar term floating around forums and blog posts - Windows Server App Fabric. The momentary déjà vu that you might have felt upon encountering it is not unheard of in the Cloud Computing circles - http://social.msdn.microsoft.com/Forums/en/netservices/thread/5ad4bf92-6afb-4ede-b4a8-6c2bcf8f2f3f http://forums.virtualizationtimes.com/session-state-management-using-windows-server-app-fabric Many have fallen prey to this ambiguous nomenclature but its not without a purpose. First announced at PDC 2009, Windows Server AppFabric is a set of application services focused on improving the speed, scale, and management of Web, Composite, and Enterprise applications. Initially codenamed Dublin the app fabric (oops....Windows Server App Fabric) provides add-ons like Monitoring,Tracking and Persistence into your hosted Workflow and Services without the Developer worried about these Functionalities. Alongwith this it also provides Distributed In-Memory caching features from Velocity caching. In short it is a healthy equivalent of Windows Azure App Fabric minus the cloud part. So why bring this up while talking about Windows Azure? Well, apart from their similar last names these powers are soon to be combined if Microsoft's roadmap is to be believed - "Together, Windows Server AppFabric and Windows Azure platform AppFabric provide a comprehensive set of services that help developers rapidly develop new applications spanning Windows Azure and Windows Server, and which also interoperate with other industry platforms such as Java, Ruby, and PHP." One of the most powerful features of the Windows Server App Fabric is its distributed caching mechanism which if appropriately leveraged with the Windows Azure App Fabric could very well mean a revolution in the Session Management techniques for the Azure platform. Well Microsoft, we do have our fingers crossed..... Read on... http://blogs.technet.com/windowsserver/archive/2010/03/01/windows-server-appfabric-beta-2-available.aspx

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  • MS SQL 2000 and SSL Certificate

    - by smoak
    I'm trying to set up a MS SQL 2000 server to use an already existing SSL certificate installed on the server. I verified that the certificate shows up in the Personal/Certificate folder of the account that is running the MSSQLSERVER service using the Certificate MMC snap-in. I also verified that the certificate for the CA is installed under the Trusted Root Certificate Authorities. Additionally, to make sure that it is using this specific certificate I created a Certificate registry value of type REG_BINARY in: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\MSSQLServer\MSSQLServer\SuperSocketNetLib and I set it to the certificates thumbprint like it mentions in: http://support.microsoft.com/kb/276553 Finally, I opened up the Server Network Utility, checked Force protocol encryption, clicked OK, and restarted the MSSQLSERVER service. Unfortunately, it fails to start and looking at the event log it's failing with: 19015: Encryption requested but no valid certificate was found. SQL Server terminating. I'm at a loss. Any ideas? Where did I go wrong?

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  • How is"cloud computing"different from "client-server"?

    - by BellevueBob
    Watching a CEO for a new "cloud computing" company describe his company on a finance TV program today, he said something like "Cloud computing is superior to old-fashioned client-server computing". Now I'm confused. Can someone please explain what "cloud computing" means in contrast to client-server? As far as I understand it, cloud computing is more of a network services model, such that I do not own or maintain the physical hardware. The "cloud" is all the back-end stuff. But I still might have an application that communicates with that "cloud" environment. And if I run a web site presents a form that a user fills out, pushes a button on the page, and returns some report that was generated by the web server, isn't that the same as "cloud" computing? And would you not consider my web browser as the "client"? Please note my question is specific to the concept of "cloud computing" with respect to "client-server". Sorry if this is an inappropriate question for this site; it's the one closest in the Stack universe and this is my first time here. I'm an old timer, programming since mainframe days in the late 70's.

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  • Can connect to shared folder on Windows Server 2012, but access denied when accessing

    - by Cylindric
    I have a Windows Server 2012 (non-domain) with a folder that's shared out as TestShare. The share permissions are Everyone has full access, and there is a local user TestUser that has full access to the actual folder. On GuestServer I can connect and/or map a drive to \HostServer\TestShare, specifying the username and password for TestUser. NTFS permissions: Share permissions Effective Access Report The problem is that when I try to access the folder, I get an "access denied" message. On the host server I can see the user connected to the share in the Sessions manager, so the password is correct and being recognised. If I use an incorrect password I don't get the "completed successfully" message, nor the 'open session'. What else can be blocking access to the shared files, when the share seems to be set, and the folder permissions seem to be set, and the connection seems to be okay? The network is recognised as "public", and the relevant firewall rules seem to be enabled - even disabling the firewall doesn't help.

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  • My HP-Vista based laptop has become very slow recently

    - by goldenmean
    My HP laptop which has Vista Home premium. When I try to start Firefox, internet explorer, it becomes very slow. No other app. When i checked the Performance in Task Manager. It shows the Physical memory , Free as 0 bytes, almost always. This has been recently. Earlier it didn't used to be zero. Laptop has 2GB of RAM. I have nothing running in my tray except - Sound control, Laptop power plan indicator,Network status indicator. There are no other processes whose memory usage adds up to so high to make Free memory as 0. Then what could be hogging the memory and make the laptop very slow. Any pointers would help as it is crawling at the moment.

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  • OS X Can't Access Netatalk Shares

    - by Rogger Matamoros
    In my home network, I have a server running Ubuntu 10.4, configured to share files to my MacBook Pro running Snow Leopard (10.6.8) with Netatalk and Avahi. It was working like a charm until one day it stopped working. I can see my server in Finder, I can enter a username and password, and it seems to accept it all, but Finder gets stuck "Connecting" until it times out. I've checked the afpd.conf and AppleVolumes.default. They are all intact. My guess is that an update broke something, but I don't know how to troubleshoot it further. Any suggestions?

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  • Easy shorewall question : allow ips to DNAT

    - by llazzaro
    Hello, At my home network I had a transparent proxy. This is the rule that forward all 80 traffic to my squid3.1 server at DMZ DNAT loc:!10.0.0.126 dmz:172.16.0.198:3128 tcp 80 - !172.16.0.198 Ok, I need to add more ips to avoid transparent proxy. I tried loc:!10.0.0.134,!10.0.0.126...but didnt work (also similars like [ip0,ip1]. I tried to google the answer cant find it (sorry no matches, not searching the right keywords) also I tried to read the docs, but they are really long (and indexes dont help me). Thanks!

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  • Need to get a list of all users within a subnet of servers

    - by mikedopp
    I am looking to write a batch or vbs script to gather all users (local to the server. ie. administrators or a local account(not ad users)) on a collection of servers inside my network. I assume I could do this by subnet. Could even put the server names into a csv text file for the script to read from and report back to. Lots to ask. I would use net user however I run into local access only. Ideas? Or too many security walls to work?

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  • Make own dial-up ISP using broadband connection [on hold]

    - by SkylarMT
    So, I see no reason why this wouldn't be possible. I have a Linux server (a Raspberry Pi to be exact) connected via Ethernet to a broadband ISP. I want to be able to dial a number, have it go through the normal telephone network, onto the Internet via a VoIP provider (I know you can call a Skype user from a landline), to my Raspberry Pi, and then have the Pi connect me to the Internet. I've found guides on making your own ISP, but they all involve a dedicated phone line on the server end. Is there a way to do this with no modem on the server end? I live in an area with a lot of people still on dialup, and if I pull this off I could make some extra money. Thanks!

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  • SMTP server problem

    - by ram
    Hi, Our requirement is to send weekly newsletters to our website customers. For which we wanted to have local hosted SMTP server in our office. We are not using SMTP server provided by website hosting provider, as we wanted to reduce the network traffic and avoid IP blocking due to bulk mails. We are sending newsletters on weekly basis from our local SMTP server. But due to some reasons, some emails are going to spam and some are not reaching to customers and sometimes there are bounce messages to follow bulk email guidelines (mainly from Gmail). Can you please suggest me, how to achieve my problem. I also wanted to know what type of technology generally Linkedin or banks uses to send notifications emails to all its customers. When they send bulk emails, they will always reach inbox with out any problem. I want the same solution to implement for my website. Please suggest me. Thank you very much in advance.

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  • Modify HTML Content with Squid

    - by user38400
    We have setup our network as per the tutorial here: https://help.ubuntu.com/community/Upside-Down-TernetHowTo. Basically, we have a squid proxy that inverts images for pages that clients request. We're trying to modify the script so that we can edit the contents of the webpage before the webpage is sent to the client. We are not having any luck. I'm wondering if there is something different about .html files that makes this not possible. What is happening is that we do a wget on the URI that is requested, save it locally, modify it and then echo back the new URI. The page that the user gets is the unmodified page and not the one that we just changed.

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  • What's so bad about pointers in C++?

    - by Martin Beckett
    To continue the discussion in Why are pointers not recommended when coding with C++ Suppose you have a class that encapsulates objects which need some initialisation to be valid - like a network socket. // Blah manages some data and transmits it over a socket class socket; // forward declaration, so nice weak linkage. class blah { ... stuff TcpSocket *socket; } ~blah { // TcpSocket dtor handles disconnect delete socket; // or better, wrap it in a smart pointer } The ctor ensures that socket is marked NULL, then later in the code when I have the information to initialise the object. // initialising blah if ( !socket ) { // I know socket hasn't been created/connected // create it in a known initialised state and handle any errors // RAII is a good thing ! socket = new TcpSocket(ip,port); } // and when i actually need to use it if (socket) { // if socket exists then it must be connected and valid } This seems better than having the socket on the stack, having it created in some 'pending' state at program start and then having to continually check some isOK() or isConnected() function before every use. Additionally if TcpSocket ctor throws an exception it's a lot easier to handle at the point a Tcp connection is made rather than at program start. Obviously the socket is just an example, but I'm having a hard time thinking of when an encapsulated object with any sort of internal state shouldn't be created and initialised with new.

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  • AuthInfoRequired cups overwrites

    - by mooscape
    My problem is basically identical to the following: http://bbs.archlinux.org/viewtopic.php?id=61826 Put simply, I have a machine in ubuntu trying to connect to another ubuntu machine via a network in order to use the printer attached. There is no problem printing until I restart the guest machine. Immediately it overwrites the printers.conf file (under /etc/cups/printers.conf). It always adds the same line: AuthInfoRequired username,password I stop cups and change it to *#*AuthInfoRequired username,password to comment out the command. Start cups. Works great 'til the next shutdown. Then it gets overwritten again. Googling indicates it may be GTK problem and not CUPS, but I have found no permanent solution to date. Any suggestions appreciated ....

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  • reverse nslookup fails for single machine

    - by matt wilkie
    I have a computer on a windows Active Directory network for which reverse dns lookup fails. It doesn't matter which machine runs the lookup. The problem computer is a debian vm on a windows server 2003 host. >nslookup wiki.dept Server: primary.internal.domain.org Address: 192.111.222.44 Name: wiki.dept.internal.domain.org Address: 192.111.111.185 >nslookup 192.111.111.185 Server: primary.internal.domain.org Address: 192.111.222.44 *** primary.internal.domain.org can't find 192.111.111.185: Non-existent domain Contents of /etc/resolv.conf on the debian guest: nameserver 192.111.111.244 nameserver 192.111.222.44 search internal.domain.org What is wrong? how do I get ip-to-name resolution to work for this machine? Thank you.

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  • Using WDS to make a router act like a makeshift signal booster

    - by cornjuliox
    I've got a router that supports WDS, and I was wondering if I could use it to help extend the range of an existing wireless router? The PC I'm using right now is just barely within the signal range of a wireless router, and the signal is rather weak so I moved my wireless USB adapter away from the computer using a USB extension cord and used a pie tin + some packing tape + a stack of books and a tall wooden stand to make a sort of reflector dish. Sometime in the future I'd like other PCs to be able to connect wirelessly but with the way things are set up I can't move any farther from this spot or I lose the signal entirely. Can I use WDS to bridge the two networks together both to increase the range of the first network and allow computers connected to the 2nd router to share internet access?

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