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• Should I start making connections even if I'm not ready for a job yet?

  - by James

  The first job is always the hardest to get and I'm not exception. I'm 23 years old and I have no college degree but planned on going to college this year if all goes well (CS of course). I'm self-studying java right now. I know most of the topics related to the language besides the more advanced topics and I'm beginning to look at open source projects. I would like to find a job (at least a part time job) after a year or two when I'll gain more experience and learn more about java technologies and other technologies that interest me. Finding a job will be a bit difficult because most of the people (or a lot of them at least) at my current age already have 2 years or more of experience, so I will be somewhat disadvantaged. Should I start building connections and joining websites such as linkedin ? I never bothered to look into it because I'm not much of a social network person. If I start contributing to open source projects and create personal projects for 2 years could I apply for jobs that require 1-2 years of experience? Does this experience count ?

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• How do I access site.project.rails (running on host) from VMWare fusion?

  - by Johnny Mnemonic

  I have a rails app setup and running on my snow leopard MacBook - the app is being served by Passenger. As part of the setup they had me add entries for 127.0.0.1 site.project.rails in my hosts file so I could reach the site from site.project.rails I can't for the life of me figure out how to get the app show up in VMWare. I have XP setup and browse to http://site.project.rails and I can't get it to show up. I setup a basic rails app, being served at localhost:3000 by webrick, I can get that to load by visiting my hosts ip (http://192.168.1.1:3000/). I added the same hosts I added on my Mac to Windows. I also Bridged the network under settings for the VM. What am I missing?

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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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• Recommendations needed for email server and file sharing solutions.

  - by Abeansits

  I work at a relatively small company, around 30 people and we are now looking into a solution that can handle: File sharing. Email server. Calendar support. Around 30 users. Accessible from external network. Support for Windows XP (and above), Mac OS 10.6.3 and Ubuntu clients. When it comes down to security we don't have the experience to comment on that. I guess the de facto standard is good enough for us. Sorry if this is formulated as a n00b question, because it is. =) Any kind of pointer in the right direction will be appreciated. Thanks in advance! //Abean

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• forcing upgrade or how to upgrade packages after update failed

  - by Orosjopie

  How do I continue upgrade or fix upgrade as upgrading in 13.04 to 13.10 failed. I'm currently running terminal in restore mode. I get the error unmet dependencies, but tried to install apt-get -f install, but get this error: unable to fetch some archives. using apt-get update also brings errors for example: failed to fetch http: archive.canonical.com/ubuntu/dists/quantal/release.gpg Could not resolve 'archive.canonical.com. Is it my internet connection? Its currently connected via a network cable and internet is on other computers. If internet on my ubuntu 13.10, how do I switch it on? or how can fix my upgrade problem that I can boot ubuntu normal, backup, then format and reload ubuntu 13.10 properly? I posted this problem that has also linked to this problem I mentioned: upgrading to ubuntu 13.10 failed/crashed. I did manager to install/upgrade some of the files and got ubuntu 13.10 to reboot, but not 100%, as it is slow and the unity desktop is not showing 100%. in trying some of the commands online, I get the error that the activity manager is not installed, when trying to install it, it conflicts with activity-log-manager-common. Please assist.

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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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• Antenna Aligner Part 3: Kaspersky

  - by Chris George

  Quick one today. Since starting this project, I've been encountering times where Nomad fails to build my app. It would then take repeated attempts at building to then see a build go through successfully. Rob, who works on Nomad at Red Gate, investigated this and it showed that certain parts of the message required to trigger the 'cloud build' were not getting through to the Nomad app, causing the HTTP connection to stall until timeout. After much scratching heads, it turns out that the Kaspersky Internet Security system I have installed on my laptop at home, was being very aggressive and was causing the problem. Perhaps it's trying to protect me from myself? Anyway, we came up with an interim solution why the Nomad guys investigate with Kaspersky by setting Visual Studio to be a trusted application with the Kaspersky settings and setting it to not scan network traffic. Hey presto! This worked and I have not had a single build problem since (other than losing internet connection, or that embarrassing moment when you blame everyone else then realise you've accidentally switched off your wireless on the laptop).

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• Why times elapsed connecting to a server are different?

  - by user1634619

  I have a small program which connects to a server of my choice and measures the time elapsed to do so. Each time I run it it returns different result. My question is what does this time depend on ? Network congestion for one. If I choose a server that has multiple addresses e.g. google.com the length of physical link may differ from time to time ? Is it safe to assume that it also affects connection time ? Are there any other factors in place ?

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• How to use CLEAR USB internet connection in Ubuntu (host) and WindowsXP (guest) using VirtualBox

  - by bithacker

  I'm trying to use CLEAR Motorola WiMax USB in Ubuntu as there is no support for linux as yet. I've installed windowsxp as guest in ubuntu and the version I'm using is 3.2.2. USB is connecting fine in WindowsXP but I can't use internet in Ubuntu. Can you please tell me how to do it. Here is the configuration that could help you guys. Thanks in advance. I'm using Two Network Adapters. Network Adapter 1: PCnet-FAST III (NAT) Adapter 2: PCnet-FAST III (Host-only adapter, 'vboxnet0') ipconfig [on Guest windowsXP] Windows IP Configuration Ethernet adapter Local Area Connection: PCnet-FAST III (NAT) Connection-specific DNS Suffix . : IP Address. . . . . . . . . . . . : 10.0.2.15 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 10.0.2.2 Ethernet adapter Local Area Connection 3: PCnet-FAST III (Host-only adapter, 'vboxnet0') Connection-specific DNS Suffix . : IP Address. . . . . . . . . . . . : 192.168.56.101 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : Ethernet adapter Local Area Connection 2: Connection-specific DNS Suffix . : CLEAR Motorola USB IP Address. . . . . . . . . . . . : 10.168.242.33 Subnet Mask . . . . . . . . . . . : 255.255.192.0 Default Gateway . . . . . . . . . : 10.168.192.2 IFCONFIG [on Host Ubuntu] (Ethernet) eth0 Link encap:Ethernet HWaddr 00:14:22:b9:9d:76 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) Interrupt:16 eth1 (Wireless) Link encap:Ethernet HWaddr 00:13:ce:f0:9b:0d inet6 addr: fe80::213:ceff:fef0:9b0d/64 Scope:Link UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:1 errors:0 dropped:5 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:84 (84.0 B) Interrupt:17 Base address:0xe000 Memory:dfcff000-dfcfffff lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:16436 Metric:1 RX packets:2292 errors:0 dropped:0 overruns:0 frame:0 TX packets:2292 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:171952 (171.9 KB) TX bytes:171952 (171.9 KB) vboxnet0 Link encap:Ethernet HWaddr 0a:00:27:00:00:00 inet addr:192.168.56.1 Bcast:192.168.56.255 Mask:255.255.255.0 inet6 addr: fe80::800:27ff:fe00:0/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:137 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:21174 (21.1 KB)

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• SPAN/Port mirroring on Linksys switch

  - by Bastien974

  Hi all, I'm trying to deploy a Snort box in my LAN. I have a Linksys SRW248G4 and trying to configure Port mirroring so that Snort can listen everything on the network in promiscuous mode. So in ADMIN / Port Mirroring, I have 3 things: Source Port (e1,...e48, g1...g4) Type (Rx, Tx, Both) Target (e1...e48, g1...g4) Last time I played with it, I killed all traffic on the switch, I had to reboot it several times... so now I'm asking question before: Do I need to configure each Source Port (from 1 to 48) to forward to the single promiscuous port ? 48 rules !? Is that correct ? Thanks !

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• Beginners Guide to Client Application Services

  - by mbcrump

  What is it? Client application services make it easy for you to create Windows-based applications that use the ASP.NET AJAX login, roles, and profile application services included in the Microsoft ASP.NET 2.0 AJAX Extensions. These services enable multiple Web and Windows-based applications to share user information and user-management functionality from a single server.   What can you do with it? Authenticate a user. You can use the authentication service to verify a user's identity. Determine the role or roles of an authenticated user. You can use the roles service to change the user interface of your application depending on the user's role. For example, you can provide additional features for users who are in an administrator role. Store and access per-user application settings located on the server. You can use the Web settings service (also known as the profile service) to share settings across multiple applications and locations. Client application services take advantage of the Web services extensibility model through client service providers that you can specify in your application configuration files. These service providers include offline functionality that uses a local cache for authentication, roles, and settings data when a network connection is unavailable. Give me an example of where I would use this! Sharing login and user role information between a Windows Form application and a ASP.NET application. How do I configure it? Click Here

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• Connecting Clinical and Administrative Processes: Oracle SOA Suite for Healthcare Integration

  - by Mala Ramakrishnan

  One of the biggest IT challenges facing today’s health care industry is the difficulty finding reliable, secure, and cost-effective ways to exchange information. Payers and providers need versatile platforms for enterprise-wide information sharing. Clinicians require accurate information to provide quality care to patients while administrators need integrated information for all facets of the business operation. Both sides of the organization must be able to access information from research and development systems, practice management systems, claims systems, financial systems, and many others. Externally, these organizations must share claims data, patient records, pharmaceutical data, lab reports, and diagnostic information among third party entities—all while complying with emerging standards for formatting, processing, and storing electronic health records (EHR). Service-oriented architecture (SOA) enables developers to integrate many types of software applications, databases and computing platforms within a particular health network as well as with community, state, and national health information exchanges. The Oracle SOA Suite for healthcare integration is designed to provide healthcare organizations with comprehensive integration capabilities within a unified middleware platform, as well as with healthcare libraries and templates for streamlining healthcare IT projects. It reduces the need for specialized skills and enforces an enterprise-wide view of critical healthcare data.  Here is a new white paper that details more about this offering: Oracle SOA Suite for Healthcare Integration

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• Teredo - how to connect to host behind NAT?

  - by Signum

  All I want to achieve is to establish connection to my simple server (written in C# using TcpListener class, if it makes any difference), on my computer which is behind NAT. It has some IPv6 address (it's public IP, starting with 2001:0) on Teredo interface. However, I cannot even ping it from outside my network, for instance I'm trying to ping this address from this website http://mebsd.com/ipv6-ping-and-traceroute, result - 100% packet loss. As I understood from reading about Teredo, there is no need for some port forwarding? So where could be the problem?

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• Sendind an internet radio singal from my hifi to a portable

  - by Paul

  I'm just about to set myself up with a wireless network in my house. This is so that I can intregate an internet radio into my hifi system. What I would love to do is to listen to the radio in another room of the house. I also have a little portable radio/cd player that has a USB port on the front. Is there something I could buy which would allow me to listen to the radio through my portable in another room? I do realize that I could solve this problem by buying some wireless portable speakers, however I just wondered if anybody knew another way i.e. bluetooth or something similar?

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• We have moved to larger offices

  - by Chris Houston

  First of all we should probably apologise for the complete lack of blogging over the last 6 months! As web developers we are constantly telling our clients that they should keep their blogs up to date and it seems we have been ignoring our own advice.That being said, we have been very busy moving offices and helping our new host QV Offices setup their new business. As well as all the moving we have not been sitting on our hands, we have built the new site for DairyMaster over in Ireland as well as a separate private website for their global distributor network.As Umbraco Gold Partners we have found more and more that we are working on projects where we are the silent development partners, so although we cannot talk publicly about a lot of the sites we develop, we have some real beauties now in our portfolio :)Now that the dust has settled in our new office ( and has been hovered up! ) we are read for the new year and are looking forward to working on some exciting projects that are currently in the pipeline.We are also intending to run some Hacking sessions for Umbraco as we now have lots of space for developers to come and work with us, so if you have any ideas of a theme for an Umbraco Hackathon then do let us know.And with that it just remains to say Happy Christmas to you all and see you in the new year!

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• Unable to connect to a remote SQL Server Instance over a VPN

  - by Jack Njiri

  I'm running SQL Server 2005 on two different servers running Win XP. The two servers are in different physical locations and are connected via a dedecated point to point data link in a virtual private network(VPN). Im only able to connect to the remote instance of SQL Server by specifying the IP address on the server name property. If I provide the actual server name say 'ServerA', then I get an error message. Everything works fine except configuring replication at the subscriber level, which requires the actual name of the instance, not an IP address or alias. I have already configured both instances on allow remote connections and im running the SQL Server Browser. How do I connect to the remote instance by providing the instance name? Alternatively how I configure subscription to a remote publisher without supplying the remote instance name?

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• tradeoffs of iSCSI vs. AFP when using Time Machine with a NAS?

  - by Ajit George

  I'm setting up a home NAS device (Synology DS409) that I'm planning to use for Time Machine backups (amongst other things). What are the tradeoffs between using iSCSI or AFP to mount the backup volume? The Synology wiki suggests that iSCSI is better if the Mac will be frequently disconnected from the network or sleeping, from the point of view of the volume automatically remounting. What about filesystem consistency? Given that unplugging a USB drive without properly unmounting it often requires the Time Machine volume to be repaired, would iSCSI have the same issues?

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• ISA - Why do i suddenly need to specify settings on the client machines?

  - by user40623

  Have been pulling my hair out over this one for hours, and wondering if someone can help. I have a server with two network interfaces that was running isa 2004 and humming until i installed sbs service pack + isa 2004 service pack 3. Grrrrrrrrrr I can get the client machines to connect to the internet but only by installing the ISA Client on each machine or setting proxy settings etc in the internet settings. Ideally i want the client machines to just work with no configuration or proxy server settings as they were before. Where do i start, and what other information do you need from me if any to find out what im doing wrong Thanks!

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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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• Oracle Delivers Special Recognition for Specialized Partners

  - by michaela.seika(at)oracle.com

  Since announcing Oracle PartnerNetwork Specialized (OPN Specialized) in October 2009, Oracle has been focused on building a program that first enables solution providers to become highly skilled Oracle partners who deliver value to customers and that then recognizes and rewards their achievements in a meaningful way. Today the company unveiled new benefits reserved for partners who have achieved one or more of the over 50 specializations currently available. The benefits demonstrate Oracle's commitment to showcase these valued partners to three key audiences: customers, other partners, and Oracle employees.With today's launch of www.oracle.com/specialized Oracle has taken what IDC believes is a first of its kind approach to putting top partners front and center with customers and prospects. While most vendors offer a business partner finder tool on their website none has gone as far as Oracle with the creation of this new site dedicated to the promotion of Specialized Partners. The tag lines - "Recognized by Oracle, Preferred by Customers" and "Specialized. Recognized. Preferred." gets right to the point - these are the solution providers with which customers should choose to engage. The contents of the page offer multiple proof points to justify the marketing phrases.One of the benefits Oracle offers its Specialized Partners is video creation and placement. While Oracle works with partners to create informal or "guerilla" videos which often are placed on YouTube to generate awareness and buzz, the company also produces professional videos for its partners. The greatest value the partner receives from this benefit isn't the non-trivial production costs that Oracle covers but instead the prominent exposure Oracle gives the finished product. Partner videos are featured on www.oracle.com/specialized, used as part of monthly OPN Specialized Partners monthly webcasts, placed on a customer facing website, the Oracle Media Network, which includes several partner sites such as PartnerCast. A solution provider gains a great deal of credibility when they can send a prospect to an Oracle website where they are featured. Read the full article here.

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• Error when trying to access Shared files from iMac via smb

  - by SatheeshJM

  I used to access all my Windows XP shared files on my Mac using Finder -- Window -- Connect to server. Now all of a sudden, an error crops up when I try to connect. I get the error "There was a problem connecting to the server "192.168.1.*" The server may not exist or it is unavailable at this time. Check the server name or IP address, check your internet connection and then try again. How can I remove this error and access my shared files from my Mac? P.S my network connections is fine.

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• Disabling networkmanager for a specific interface

  - by bdonlan

  I'd like to do some experimentation with hostap without disabling my primary wireless interface. How do I tell networkmanager to keep its hands off a specific interface or interfaces while allowing it to continue managing all other interfaces normally? I'm using Ubuntu 9.04. (Wasn't sure if this should go on superuser or serverfault, as networkmanager isn't much of a 'server' tool - if it belongs on serverfault please feel free to move it) Edit: I've tried adding this to /etc/network/interfaces: allow-hotplug wlan2 iface wlan2 inet static address 192.168.49.1 netmask 255.255.255.0 But this has no apparent effect, even after restarting NetworkManager. Here's my /etc/NetworkManager/nm-system-settings.conf: [main] plugins=ifupdown,keyfile [ifupdown] managed=false Edit[2]: Looks like I needed to restart nm-system-settings, then NetworkManager.

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• Interconnect nodes in a Java distributed infrastructure for tweet processing

  - by David Moreno García

  I'm working in a new version of an old project that I used to download and process user statuses from Twitter. The main problem of that project was its infrastructure. I used multiple instances of a java application (trackers) to download from Twitter given an specific task (basically terms to search for), connected with a central node (a web application) that had to process all tweets once per day and generate a new task for each trackers once each 15 minutes. The central node also had to monitor all trackers and enable/disable them under user petition. This, as I said, was too slow because I had multiple bottlenecks, so in this new version I want to improve the infrastructure and isolate all functionalities in specific nodes. I also need a good notification system to receive notifications for any node. So, in the next diagram I show the components that I'll need in this new version: As you can see, there are more nodes. Here are some notes about them: Dashboard: Controls trackers statuses and send a single task to each of them (under user request). The trackers will use this task until replaced with a new one (if done, not each 15 minutes like before). Search engine: I need to store all the tweets. They are firstly stored in a local database for each tracker but after that I'm thinking on using something like Elasticsearch to be able to do fast searches. Tweet processor: Just and isolated component with its own database (maybe something like the search engine to have fast access to info generated by the module). In the future more could be added. Application UI: A web application with a shared database with the Dashboard (mainly to store users information and preferences). Indeed, both could be merged into a single web. The main difference with the previous version of the project is that now they will be isolated and they will only show information and send requests. I will not do any heavy task in them (like process tweets as I did before). So, having this components, my main headache is how to structure all to not have to rewrite a lot of code every time I need to access any new data. Another headache is how can I interconnect nodes. I could use sockets but that is a pain in the ass. Maybe a REST layer? And finally, if all the nodes are isolated, how could I generate notifications for each user which info is only in the database used by the Application UI? I'm programming this using Java and Spring (at least I used them in the last version) but I have no problems with changing the language if I can take advantage of a tool/library/engine to make my life easier and have a better platform. Any comment will be appreciated.

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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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• Unable to log into Windows XP Pro Domain Not Available

  - by Belliez

  Trying to access an old laptop I have but at the windows login screen I attempt to log in and get the message "Unable to log in because is unavailable". This laptop is not on a domain or a network and I do not know the computer name. I have blanked the passwords of the local administrator and user account using Offline NT Password and Registry Editor but still unable to log in? Any advice would be grateful or if you can point me to the registry location I can edit or delete to remove the domain. Thanks

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