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• VMware Fusion on MacBook Pro running Vista, not working after installing a wireless card

  - by Shelley

  A tech friend installed VMware on my Mac so I could use my Windows programs as well. It worked great until I inserted my Sierra 881 USB wireless card while in VMware trying to get to the internet while on the road. It worked briefly, then the AT&T Communication manager won't respond when you click on the icon, I can't open Network and Sharing center, I can't sync my palm - shows it can't connect. Looks like it messed up several things, along with not being able to connect to the internet while in windows. This wireless cards works directly from the Mac - but I need internet while in Windows for some work I am doing. How do I uninstall this - when I try - it just gives me an endless reloading circle - not doing anything. I really need to sync my palm and get back to the way it was. I don't know much about VMware at all and I don't have access to my friend right now to get help.

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• AS2 Server Software Costs

  - by CandyCo

  We're currently using Cleo LexiCom as our server software for receiving EDI transmissions via the AS2 protocol. We have 7 trading partners per year, and this runs us about $800/year for support from Cleo. We need to expand from 7 trading partners to 10 or so, and Cleo charges roughly $600 per new host, plus an expanded yearly support fee. My question(s) are: Does anyone know of a cheaper developer of AS2 server software, and perhaps one that doesn't charge per new host? Does anyone have any clue why we are being charged an upfront fee for new hosts, and if this is a standard practice for AS2 software providers? It seems really odd that we are required to pay upfront costs for this. I could completely understand an increase in the yearly support, however.

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• What is your approach to draw a representation of your network ?

  - by Kartoch

  Hello, I'm looking to the community to see how people are drawing their networks, i.e. using symbols to represent complex topology. You can have hardware approach, where every hardware unit are represented. You can also have "entity" approach, where each "service" is shown. Both are interesting but it is difficult to have both on the same schema (but this is needed, especially using virtualization environment). Furthermore, it is difficult to have complex informations on such representation. For instance security parameters (encrypted link, need for authentication) or specific details (protocol type, ports, encapsulation). So my question is: where your are drawing a representation of your network, what is your approach ? Are you using methodology and/or specific softwares ? What is your recommendations for information to put (or not) ? How to deal with the complexity when the network becomes large and/or you want to put a lot of information on it ? Examples and links to good references will be appreciated.

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• Network connectivity issue

  - by kubiej21

  I am a novice cisco user and I am trying to investigate as to why one of our connections went down. We have a fiber network ring that is operating just fine. Connected to this ring via ethernet, is a lone 3560. This connection has worked flawlessly for the past year and a half. This morning, I noticed that I could not connect to that remote switch. I checked the configurations on both switches, and nothing has changed (as I expected). In the field, the port lights were flashing, indicating that some sort of communication is occurring. There is only 1 ethernet cable that has been run between these two locations, so testing an alternate path is not possible. What else can I do to fix this connection?

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• cannot using internet in VMWare

  - by user66247

  I am using VMware Workstation version 7 on Ubuntu 10.10. I installed Windows XP service pack 3 for guest os. Within VMWare, I am using bridge connection that I assigned static IP address to be able to ping host IP address but I cannot ping default router gateway. I also tried to command "/etc/init.d/vmware start" on terminal. All tasks are able to start successfully except "VM communication interface socket family" I am not sure that how to setup network for my VMWare by using wireless. Thanks in advance.

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• Two VPN connections from the same IP address

  - by Tayles

  I have set up a server running Windows Server 2008 which two remote users can dial into using a VPN connection. It works fine unless they are both in the same location, in which case only one of them can connect. I understand this is because the PPTP protocol cannot cope with two VPN connections from the same IP address. Is this correct? If so, what can I do about it? Please note that the remote location in question is a serviced office, so we're not in a position to change or play around with their router. Thanks!

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• How to remove AegisP.sys

  - by NinjaCat

  When I boot my laptop, I get the following event in the error log... I cannot tell which service is trying to use the aegisp.sys file or generating this event. Can anyone shed some light? Google is not very helpful with this issue ;) Event Type: Error Event Source: Service Control Manager Event Category: None Event ID: 7000 Date: 8/20/2010 Time: 10:50:03 PM User: N/A Computer: XXX Description: The AEGIS Protocol (IEEE 802.1x) v3.6.0.0 service failed to start due to the following error: The system cannot find the file specified. For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

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• Activating ssl on tomcat

  - by toom

  I want to encrypt the http traffic on a tomcat instance via ssl. Therefore I followed the most simplistic approach described on various webpages. But anyway it simply does not work. Here is what I did: "keytool -genkey -alias tomcat -keyalg RSA" and I enterd "changeit" as the password (since this is the defaut chosen by tomcat) Altering $CATALINA_HOME/conf/servers.xml by uncommenting the following line Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true" maxThreads="150" scheme="https" secure="true" clientAuth="false" sslProtocol="TLS"/ Restarting tomcat Entering https://localhost:8443 does not work. However, I can still access the page via normal http like http://localhost:8080 The logfile does not contain any suspicious information. What is going wrong here?

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• Internet connection resets (wifi), no device has wifi for moment

  - by Gizmo

  I have a few devices setup and I noticed this happens with both my old and new router (two different vendors&models) This happens occasionally, and I tried wireshark today and this cought my attention: No. Time Source Destination Protocol Length Info 69 6.464423000 LiteonTe_7f:64:30 Broadcast ARP 42 Who has 192.168.2.4? Tell 0.0.0.0 73 7.451146000 LiteonTe_59:65:94 Arcadyan_e1:8c:cf ARP 42 Who has 192.168.2.254? Tell 192.168.2.1 85 9.450443000 LiteonTe_59:65:94 Arcadyan_e1:8c:cf ARP 42 Who has 192.168.2.254? Tell 192.168.2.1 91 10.521000000 LiteonTe_59:65:94 Broadcast ARP 42 Who has 192.168.2.254? Tell 192.168.2.1 93 10.860953000 LiteonTe_7f:64:30 Broadcast ARP 42 Who has 192.168.2.254? Tell 192.168.2.4 97 11.099463000 LiteonTe_7f:64:30 Broadcast ARP 42 Who has 192.168.2.254? Tell 192.168.2.4 where 192.168.2.254 is the gateway/router, 192.168.2.1 my laptop ip and 192.168.2.4 my sisters laptop.. what's happening here?

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• How can I get the comment of the current authorized_keys ssh key ?

  - by krosenvold

  Edit: What I really need to know WHICH ssh key from authorized_keys has been used to identify the currently logged on user. According to "man sshd": Protocol 2 public key consist of options, keytype, base64-encoded key, comment. I see that when I use ssh-keygen, the comment is usually the local identity of the user. Is there any way to access this value when I'm on the remote computer ? (Kind of like the SSH_CLIENT shell variable) (Assuming I enforce the comment to be a remote identity of some sort, I would like to log this from a shell-script! This is on ubuntu)

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• Why can't my FreeBSD 6.1 (vmware player client under Win7) do DNS in Bridged mode.

  - by Walter Stickle

  I have a 64-bit FreeBSD 6.1 client, running under Windows 7 (64-bit) via VMWare player 3.0, with networking set to bridge mode. DHCP goes fine on boot... I get correct adress/gateway/nameserver info... I have good connectivity to the world in that I can ping any host I can name by IP addr, (including both of the nameservers in resolv.conf,) ...but I can't resolve any names. Inside the Windows box, the network interface has VMWare Bridge Protocol enabled, and the windows side of things has full connectivity. dig replies with: ;; connection timed out; no servers could be reached ...even if I use "dig @server_ip_addr" to point it at a pingable, working nameserver If I set VM networking to NAT mode, I can get outbound connectivity (with happy DNS) but, of course, can't do INBOUND connectivity, which I need. Thoughts?

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• Regarding the functioning of the HTTP server

  - by Luv

  As all of us uses the HTTP protocol for accessing the web, and request at the port number 80 of the server, now suppose i want to browse or download a file then i will request to the HTTP server by specifying the complete URL. If the server is having file, it would return it if it is not having the file then what will it do? I think it will make the request to the appropriate server which would be having this file and get the file and return to us. In this way does the HTTP server acts as an intermediate between the client and the server? Please correct me if i am wrong here. Many many thanx in advance

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• where is this SPF problem occuring

  - by Saif Khan

  Hi, Inbound mail to a specific user is been forwarded to his external mailbox at another domain. Add mails are routed correctly with the exception of one domain. When mail are sent to users of my domain, including that user, the mails are delivered to everyone except him...as the mail admin I am getting the message The following recipient(s) cannot be reached: usermailbox on 1/10/2011 1:27 PM There was a SMTP communication problem with the recipient's email server. Please contact your system administrator. email.speedimpex.com #5.5.0 smtp;587 [email protected] sender domain does not match SPF records I am sure this has nothing to do with my mail server, however, can someone confirm?

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• What is Slotted and pure aloha?

  - by caspert

  So I am having a really hard time understanding slotted and pure aloha. I have understood CSMA/CD fairly well, but that is it. I have the book: Computer networking - a top down approach, but I find the explanation very cryptic and hard to understand. Wikipedia did not help me. Does anyone have a brief "aloha for dummies" explanation? or perhaps a video tutorial? I think I need something visual. I don't need to be able to create the protocol, I just need a general understanding of it.

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• internet without dns tennis play [closed]

  - by Curious

  Why do we make DNS requests separately when an ISP could also be handling the DNS request along with HTTP data simultaneously. So rather than: Ask opendns what yahoos address is. Opendns returns: 66.55.44.11 Hey, Verizon. Send/Request data from 66.55.44.11. Why wouldn't the protocol just request data from "yahoo.com" and verizon interprets the yahoo.com as a split DNS request. This would lower latency for sure as it cuts out the time required for the dns server to call back the IP to then be sent AGAIN when it could just be handling the entire request theoretically. Couldn't this be managed via a host file change on the client side and make compatible servers?? So much like a proxy.

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• Windows/global setting to allow only SSL when on public Wifi?

  - by hungry

  Rather than going through each of my apps and modifying settings, or tweaking individual browser settings (I use three different browsers) or just being careful not to type non-SSL URLs into the web address bar, is there a solution at the Windows level that will prevent anything from connecting to the web from my laptop unless it's using SSL? I also have mini apps installed like Gmail checker, etc that connect to the web of their own volition using my usernames, passwords and such, so it goes beyond just web browsers. The reason I'm asking is I want to work securely on the general Internet when on public Wifi (e.g. coffee shops) without a lot of hassle or having to remember everything that needs to be locked down. When I'm back home I want to go back to full access mode using any kind of protocol on the web. If a website doesn't support SSL when I'm out in public then I just don't surf it - that's not a worry to me.

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• What protocols will/are ISPs use for IPv6 deployment?

  - by rbeede

  Currently ISPs deal out addresses via DHCP for IPv4 dynamic (single) addresses. What protocol will/are ISPs going to use for IPv6 when they can hand a customer an entire /64 (or /48 if they are nice) block? DHCPv6, RA? For ISPs that support true end-to-end IPv6 will they provide gateway devices (similar to cable modem or true DSL bridges for example) that receive border information for that specific customer? I'm just trying to get an idea of how your common residential service customer will have to configure things in an IPv6 Internet (whenever that comes). Will it be something customers are expected to statically configure on their home wireless router? Today with IPv4 I do it like this: Modem (bridge) passes public IPv4 obtained via DHCPv4 from ISP to second device (wireless router). It in turn has its own DHCPv4 service it provides on the internal lan.

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• Redirect websockets to port?

  - by DigitalMan

  So, I've got a WebSocket server in C++, that is a completely stand-alone entity - handles header parsing, receiving, sending, all of it on its own, listening directly to the port. Problem is, it needs to run on a server alongside Apache, and that's a bit of a problem. Now, there was a solution here to a similar issue involving mod_proxy, but I'm hoping I can intercept and redirect WebSocket communication before Apache even knows about it, possibly with iptables. So the question is, is it possible to direct traffic bound for chat.mysite.net to a WebSocket server on, say, port 8080, while anything else headed to mysite.net proceeds as expected to Apache?

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• Windows Media Player 11 fails to authenticate with proxy (ISA)

  - by Ed Manet

  We have some users who need to use a 3rd party site that embeds Windows Media Player streaming video into a web page. Our users go through an ISA proxy server to connect to the Internet. The browser has no problems accessing the site through the proxy. When Media Player loads, we get prompted for network credentials, but the authentication fails. If we set up Internet Explorer 8 to not use the proxy, Media Player has no problem. Media Player is configured to use the RTSP/TCP and HTTP protocols, but not the RTSP/UDP protocol. Is this necessary? Is there a registry key I can use to enable it? Is this more of a proxy server issue? The proxy guy says it's a desktop issue.

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• Should I host my entire web application using https?

  - by user54455

  Actually my only requirement for using SSL encryption is that when a user logs in, the password is transferred encrypted. However after reading a bit about protocol switching, that an HTTPS session can't be taken over as an HTTP session etc. I've been asking myself if it's so bad to just have the entire application use HTTPS only. What are the reasons against it and how would you rate their importance? Please also mention: How much performance do I lose on server side (roughly)? How much performance do I lose on client side (roughly)? Any other problems on server / client side?

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• Other options to "balance source" in haproxy

  - by PriceChild

  I have haproxy listening on several ports and pointed at several backend servers. Ideally, I would like it so that repeated communications to the same port get pointed at the same backend. "balance source" isn't workable because often requests come from the same source. Is this doable? I'm also open to non-haproxy solutions. The protocol being used isn't important but is definitely not http. Just assume its ssh and you shouldn't go wrong.

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• direct url to server ip address and port

  - by AM0

  We have a Windows 2012 dedicated server. There’s a custom service running on port xxxxx which accepts connections from our custom built hardware devices over TCP/IP port. As of now we use servername.serverdomain.com:xxxxx to connect to the service and start communication. However, we prefer to use URL instead of server’s name or IP Address. So we got a custom url and set its name servers to point to dedicated server. However, just setting DNS doesn’t seem to be working. Could someone please guide as to how to get it working? UPDATE In short I want www.custom-url.com being forwarded to servername.serverdomain.com:xxxxx. These requests are coming from hardware and not browser.

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• svn:externals cache and stale URLs

  - by dcaunt

  I have a subversion externals entry in a library folder which looks like this: Z https://svn/Z/trunk/library/Z Fetching external item into '/home/releases/50/library/Z' svn: OPTIONS of 'http://svn/repo/trunk/library/Z': could not connect to server (http://svn) The externals URL was the same, but over the HTTP protocol. Having changed the externals to point to the HTTPS, I can't figure out why subversion is still trying to use the old URL. Does subversion cache the externals path, and if so how can I clear this? If not, what else could be causing this? I can check out from the correct (HTTPS) URL fine from the server. NOTE: svn is an entry in the server's local hosts file, pointing to our subversion server's IP.

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• ssh accepts any password

  - by nodapic

  I'm recovering a server from getting hacked and there is one thing I can't fix: When I ssh (or scp) to the server, no matter what password I give, it lets me log in. I don't know much about the ssh protocol but I'm pretty sure it's not supposed to do that. I've checked in the sshd_config file and the only changes are the ones that I've made (as far as I can remember). Another thought that I had was that there might be something screwed up in the /etc/passwd file that I'm missing. Has anyone seen this?

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• How can 2 or more instances of the same program to communicate in local network?

  - by user1981437

  I want to create program which will be in use for few computers connected in local network. Basically the program aim is to keep track of all tables in a bar ( lets say ), which are reserved. When some user book a table as reserved the program should broadcast the table number to all other Pc's and mark the table as reserved. Since all computers use the same program, how is possible to create communication between all of them ? Should i use sockets to achieve this? If it matters, all of the computers have installed Linux OS,and the app will be developed in ruby,perl or php. Thank you.

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