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  • How do networking ports work? Can I configure the ports that client and server use?

    - by joedotnot
    Let's say i have a "server" program listening on address 1.2.3.4:69 (i.e. remote port 69) When i connect from a "client" program to it, typically i would specify the IP address + port of the target or server system; But what port would the client be using ? And how does the server know which port to connect back to the client on? I understand this question is very general, but just wanting to get a general feel for how things work. Then extending this to a specific protocol, say FTP (typical port 21), can I change it such that the server uses port 69, but the client uses port 100? And similarly, for Remote Desktop in WinXP (typical port 3389), i know how to change the server port to be something other than 3389, but how does one change what port the client uses (if at all possible)?

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  • Wireshark does not see interfaces (winXP)

    - by bua
    Short story: Wireshark is working....on my winXP-32b ... usage .... Long long time later Wireshark does not work It can't find any usefull interface (just VPN) ipconfig /all Ethernet adapter Wireless Network Connection: Media State . . . . . . . . . . . : Media disconnected Description . . . . . . . . . . . : Dell Wireless 1490 Dual Band WLAN Mini-Card Physical Address. . . . . . . . . : SOME VALID MAC Ethernet adapter eth0: Connection-specific DNS Suffix . : xxxx Description . . . . . . . . . . . : Broadcom 440x 10/100 Integrated Controller Physical Address. . . . . . . . . : SOME VALID MAC Dhcp Enabled. . . . . . . . . . . : Yes Autoconfiguration Enabled . . . . : Yes IP Address. . . . . . . . . . . . : 192.168.12.68 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168..... ..... Ethernet adapter Local Area Connection: Media State . . . . . . . . . . . : Media disconnected Description . . . . . . . . . . . : Fortinet virtual adapter Physical Address. . . . . . . . . : SOME VALID MAC Following steps didn't help: Several Wireshark re-installation Several LIBPCAP re installation SP3 for winXP Any ideas welcome.

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  • Dalvik JIT

    [This post is by Dan Bornstein, virtual-machine wrangler. — Tim Bray] As the tech lead for the Dalvik team within the Android project, I spend my time working...

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  • Beginner server local installation

    - by joanjgm
    Here's the thing I own a small business and currently my emails are being managed by some regular hosting using cpanel and that I bought a small server and installed windows server and exchange Can you tell what I did wrong here Installed and configured my current existing domain Configured all email address Installed noip in case my public address change In the cpanel of the domain I've added an MX record to the noip domain of the server with priority 0 so now emails are being received by my own server Now whenever I send an email to anyone gmail hotmail etc I get a response that cannot be delivered since may be junk This didn't happen when I sent emails from the hosting What's missing what did I do wrong heres the code mx.google.com rejected your message to the following e-mail addresses: Joan J. Guerra Makaren ([email protected]) mx.google.com gave this error: [186.88.202.13 12] Our system has detected that this message is likely unsolicited mail. To reduce the amount of spam sent to Gmail, this message has been blocked. Please visit http://support.google.com/mail/bin/answer.py?hl=en&answer=188131 for more information. cn9si815432vcb.71 - gsmtp Your message wasn't delivered due to a permission or security issue. It may have been rejected by a moderator, the address may only accept e-mail from certain senders, or another restriction may be preventing delivery. Diagnostic information for administrators: Generating server: SERVERMEGA.megaconstrucciones.com.ve [email protected] mx.google.com #550-5.7.1 [186.88.202.13 12] Our system has detected that this message is 550-5.7.1 likely unsolicited mail. To reduce the amount of spam sent to Gmail, 550-5.7.1 this message has been blocked. Please visit 550-5.7.1 http://support.google.com/mail/bin/answer.py?hl=en&answer=188131 for 550 5.7.1 more information. cn9si815432vcb.71 - gsmtp ## Original message headers: Received: from SERVERMEGA.megaconstrucciones.com.ve ([fe80::9096:e9c2:405b:6112]) by SERVERMEGA.megaconstrucciones.com.ve ([fe80::9096:e9c2:405b:6112%10]) with mapi; Thu, 29 May 2014 11:32:19 -0430 From: prueba <[email protected]> To: "Joan J. Guerra Makaren" <[email protected]> Subject: Probando correos Thread-Topic: Probando correos Thread-Index: Ac97V1eW4OBFmoqJTRGoD7IPTC2azg== Date: Thu, 29 May 2014 16:04:35 +0000 Message-ID: <[email protected]> Accept-Language: en-US, es-VE Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: Content-Type: multipart/alternative; boundary="_000_000f42494487966276f7b241megaconstruccionescomve_" MIME-Version: 1.0

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  • can not access dlink 604 set up interface

    - by user36089
    Hello everyone I used dlink-di604 enthernet board as router to share web access. My ISP provides the service base on Ethernet rathern than base on Ethernet pppoe mode. It is manually setup ipv4, subnet mask , DNS, Gateway etc Log in using web user name&password. I use http://192.168.0.2 try to access dlink di604 setup inferface, but failed I call command ipconfig /all Dos shell displayed: Ethernet adapter Local Connection: Physical Address: 00-3c-56-79-19-49 IPv4 address:10.7.8.225 subnet mask: 255.255.255.0 default gate way: 10.7.8.1 DNS servers 10.10.10.10 What is the correct way to access dlink 604 setup interface and set to share web access? Welcome any comment Thanks interdev

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  • Open Directory authenticated bind succeeds, but creates incomplete record

    - by Jay Thompson
    I have about a dozen Macs running 10.6.7 or 10.6.8, which are all failing to bind properly to my new 10.7.4 Server OD. I can bind them just fine via Directory Utility or dsconfigldap, and it reports success. However, when I look at the record, it is failing to write the MAC address. Even if I manually update the record with the MAC address, MCX doesn't do anything and clients can't log in to OD accounts. All of the affected clients have hundreds of lines in the /Library/Logs/DirectoryService.error.log like so: 2012-09-15 22:23:18 EDT - T[0x00007FFF70292CC0] - GetMACAddress returned 0x *** bad control string *** 8x I do know that all of these clients were previously managed with the Guest computer account, and I also know that they were all imaged with a DeployStudio image when they were purchased. I've tried dscacheutil -flushcache, but after that I'm drawing a blank. Google has a few hits, but nothing very helpful. Re-imaging would be ideal but probably isn't going to happen. Anyone come across this before?

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  • How to embed word doc as background picture of an Access report using .EMF or equivalent ?

    - by iDevlop
    My company's standard paper has logo, address and all the details in the right margin with a vertical blue line. I have that as a word template. I want to have the same thing as the background of my Invoices report. I managed to do that 5 years ago by saving to EMF format (vector format, prints out nicely) and putting the file as the background of the report. Now my company is moving, and I need to change the address on my invoices, but I can't find out how I did to convert the word doc to EMF. Any suggestion ? By EMF or another process, but I want to avoid BMP, which is huge and does not print nicely. Thanks !

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  • Cross subnet connection

    - by user30472
    My internal Windows 2008 AD network is 172.20.xxx.xxx My Apple Wireless base stations only allows DHCP 172.16.xxx.xxx Private IP address ranges: 10.0.0.0 to 10.255.255.255 172.16.0.0 to 172.31.255.255 192.168.0.0 to 192.168.255.255 The problem: The internet works from my IPad that has a 172.16.xxx.xxx address, but I can't access (browse) my tools server that is 172.20.xxx.xxx that host my Filemaker database. Is it possible to add 172.16.xxx.xxx range somewhere in DHCP or DNS on my Windows domain server so I can access tools? Or is there another way to make this connection work? Thanks

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  • We’re looking got SQL People

    - by simonsabin
    We are growing our data team at Wonga. If you are working in the SQL Server space and would like to join the one the fastest growing tech companies in Europe then please get in touch ( http://sqlblogcasts.com/blogs/simons/contact.aspx ) We have positions for production DBAs, Data QA analysts and SQL generalists (with a BI tendency). We also have generalist production support roles   Wonga is currently 3rd in the Times Tech Track 100 having been 1st last year. Being in the top 3 for two years...(read more)

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  • Boost Your SEO With Good Keyword Research

    Once you get into the search engine optimization game, you'll learn all types of basic principles. Emphasizing your keyword in code is one. Stressing Your Keyword For SEO. Keywords are the key, pun supposed, to search engine optimization. You must develop an understanding of what your projections are wanting for in your space of business. Keyword research is the method for doing this and a step that should be conducted with nice precision and effort.

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  • arp across subnets which devices can be detected?

    - by Gobliins
    i have some devices connected in the same physical network (LAN) but in different subnets. I want to detect them all with the ARP from my computer. My Computer is also in the same physical network but on a different subnet. ! The devices have no arp protocol installed (yet). Is it possible to detect the devices (with or withour ARP installed on every device)? If the devices have a MAC-address but no IP-address, can ARP still detect the machines?

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  • Unable to copy and paste (or cut and paste) photos already reduced in size from Word document into a

    - by Simon Child
    Hello I cannot copy photos and paste them from a word document into the text of an email on my Sony Laptop having already substantially redcued the size of the photos using Microsoft Office Picture Manager. I can readily manage to perform this functjon from my work place PC but am presently working mostly from home. I am trying to email photos and text using a btinternet.com email address but have checked that I cannot perform the task using my alternate googlemail email address either. I can obviously highlight the relevant photographs but whenever I try to copy or cut them into the email text the paste function is disabled. Assistance would be much appreciated. Kind regards Simon

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  • Unit turning in navmesh-based pathfinding

    - by Haddayn
    I'm working on an RTS game, and I'm using navmeshes for unit pathfinding. I do know how to find a general path within a navmesh, but how do you determine if the unit have enough space to turn? I have units of different shapes (mostly rectangles with different dimensions), and with different turn radii. Additionally some of units can turn in place, and some can move in reverse. So, how to find a path which unit can follow, considering that it can not rotate easily?

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  • Website Success Strategies For Service Providers

    There is a big market for a variety of services that can be delivered online. In fact, one of the fastest ways to generate income with an online business is to offer a service. Examples of successful online service businesses include graphic design, virtual assistance, web content writing, life coaching and marketing consultation.

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  • Need help with remote dekstop - Limit the computers you can access server from

    - by stirredo
    I have a windows server 2003 computer that is accessed by remote desktop connection. To access the server all you need to know is the IP address of the computer. I want to limit the computers that can access the windows server computer to authorized computers only. The authorized computers won't have static IPs, so I cannot limit them on basis of IP address. Can I limit them on basis of MAC id perhaps? I won't mind using third party solution like Teamviewer or Logmein etc. So How can I solve this problem?

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  • In VirtualBox, how can I access host localhost from guest (Visual Studio Dev Server from IE7 testing VM)?

    - by Seth
    Host OS is Win7 running MyApp in the Visual Studio Development Server, bound to localhost:51227, VM is VirtualBox configured with NAT. Guest OS is Win XP with IE7 installed. My goal is to debug MyApp (running on host) from within IE7 (running on guest). Visual Studio Development server only binds to the loopback network device (i.e. localhost). It does not bind to the external IP address of my host. I've tried access 10.0.2.2:51227 from IE7 on the guest (and confirmed that 10.0.2.2 is the gateway address using ipconfig), but it appears that 10.0.2.2 binds to the external IP of the Host, NOT the loopback IP (localhost), so this does not work. Any suggestions?

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  • Windows 7 Taskbar doesn't remember configuration

    - by eidylon
    Hi all... I have my taskbar on Win7 all customized. I have it at the top of the screen, and i have the address bar, desktop toolbar, and a custom folder toolbar all turned on. I have it set to two rows, and have the taskbar and desktop on one row and the address bar and custom folder on the second row. When i shutdown then restart my computer it remembers that i have the taskbar at the top of the screen, but it does not remember the way i had the various bars organized, and it just makes it a single row with the bars all mushed together on one row. Anyone else had this/know how to fix it? Running Win7 Ultimate x64.

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  • How to Set Up a Website - Tips Inside

    If you want to put up an online business, creating a website is the very first thing you have to focus on. Your website will serve as your store in the virtual world so you have to pay attention to it the way you would you're a physical store.

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  • Disable IPv6 on Debian VPS

    - by chris_l
    I have a Debian Lenny VPS, that's running virtualized by Parallels/Virtuozzo. Currently, the network interface doesn't have an IPv6 address - and that's good, because I don't have an ip6tables configuration. But I assume, that I could wake up one day, and ifconfig will show me an ipv6 address for the interface - because I have no control over the kernel or its modules - they're under the control of the hosting company. That would leave the server completely vulnerable to attacks from IPv6 addresses. What would be the best way to disable IPv6 (for the interface or maybe for the entire host)? Usually I would simply disable the kernel module, but that's not possible in this case.

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  • How do I now access my site for an installation

    - by user4524
    I have just rented a virtual private server with DirectAdmin. I have an ip address, lets say its: 178.239.60.18 Now I have made a new domain on the server. It resides in a folder called: example. Now when I would like to acces this in a browser, I type in 178.239.60.18/example or 178.239.60.18:example But this does not work. What am I doing wrong? When I look at the DNS record it does say the the ip address for example is 178.239.60.18

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  • VPN Authentication Credentials (Local/Remote Identifiers) For Remote Access VPN

    - by thatidiotguy
    So I am trying to set up a remote access VPN using the free ShrewSoft vpn client: https://www.shrew.net/software I want to use a PSK as the authentication mechanism combined with XAuth so that a connection requires a valid username/pass combo. Under the authentication tab this particular VPN Client however is asking for a Local Identity and a Remote Identity. The options for Local Identity Type are: Fully Qualified Domain Name User Fully Qualified Domain Name IP Address Key Identifier The options for Remote Identity are: Any Fully Qualified Domain Name User Fully Qualified Domain Name IP Address Key Identifier My current thinking is that I can use the Fully Qualifed Domain Name provided by the remote firewall for the Remote Identity, but I do not know what it wants for local identity. Just to stress: I am not trying to set up a site to site VPN. Can anybody shed any light on what I am missing here? A screenshot can be provided if that would be helpful. The current error I am getting during the connection is: IKE Responder: Proposed IKE ID mismatch

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  • Kubuntu 11.10 Lot of Networking problems

    - by Cobraone
    Since I upgrade to 11.10 I have a lot of problems with KDE. First of all there are problems in configuring a static IP address. Just to explain @home I have a normal fiber ADSL and I use a DHCP. When I go to a customer I must insert a static IP address. With ifconfig everything seems ok but there is something wrong in searching DNS names. (I have installed Ubuntu and was going ok again). Now I Have reinstalled again Kubuntu 11.10 and I have the same problem in addition today I have discovered that if I connect to a network in another customer office the desktop freezes and I could only switch between windows with alt+tab. No FN key or right click to open run command works. So i unplugged network (configuration is just DHCP here) and tried on another position in office. It was the same. My Laptop freezes when connected, a fedora 14 of a friend works. So I decided to connect my Galaxy S II as USB network device. Everything is ok for like 3 minutes. When I noticed a little loss of signal again the desktop freezes and i must work (like now) just switching between windows with alt+tab). Additional information: Unplugging network or restarting it via Konsole does not not solve the freezing problem. Every time I must open a console and reboot. Any idea of what tests to do ? Just a recommendation: If I must post here logs or something else please guide me. I use Linux since Ubuntu 9 but I am not an "expert".

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  • Compiz cube configuration

    - by Keynesian
    Sorry for the stupid question but I am new with Linux (I am using Gnome classic with Ubuntu 12.04) and I cannot set compiz in order to obtain the rotating cube. I have already installed compizconfig-setting-manager and also the extra (and fusion) plugins but: even if I disable the desktop wall and enable cube and rotating cube, nothing happens; even if I change into general settings the number of vertical and horizontal virtual size nothing happens. What I need is (possibly) a step by step answer. Thank you

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  • Handling Constraint Violations and Errors in SQL Server

    The database developer can, of course, throw all errors back to the application developer to deal with, but this is neither kind nor necessary. How errors are dealt with is dependent on the application, but the process itself isn't entirely obvious. Compress live data by 73% Red Gate's SQL Storage Compress reduces the size of live SQL Server databases, saving you disk space and storage costs. Learn more.

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