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  • Wireless AP Placement and Digramming

    - by Matt Simmons
    I'm trying to research the best placement of wireless APs in a given space, and I'm running into problems in gathering information. I found (what I thought was) a great source in this tech republic article: http://techrepublic.com.com/5206-6230-0.html?forumID=82&threadID=163120 While this diagram seems detailed and overall very informative, there were a lot of comments talking about how it was lacking in things like "wire racks, microwaves, concrete walls, motors..." etc. Maybe I'm rash, but I just sort of looked around my office (which is, albeit, somewhat smaller than the one diagrammed), and went "uhhh, there", and hooked up the AP. It seems to cover everywhere. I imagine if my office quadrupled in size, I'd logically divide it up and put four APs in, with a similar amount of thought devoted to each. So, suppose I had a much more complex office. What tools (both diagramming and surveying) do you use to plan your AP placement?

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  • Wireless AP Placement and Digramming

    - by Matt Simmons
    I'm trying to research the best placement of wireless APs in a given space, and I'm running into problems in gathering information. I found (what I thought was) a great source in this tech republic article: http://techrepublic.com.com/5206-6230-0.html?forumID=82&threadID=163120 While this diagram seems detailed and overall very informative, there were a lot of comments talking about how it was lacking in things like "wire racks, microwaves, concrete walls, motors..." etc. Maybe I'm rash, but I just sort of looked around my office (which is, albeit, somewhat smaller than the one diagrammed), and went "uhhh, there", and hooked up the AP. It seems to cover everywhere. I imagine if my office quadrupled in size, I'd logically divide it up and put four APs in, with a similar amount of thought devoted to each. So, suppose I had a much more complex office. What tools (both diagramming and surveying) do you use to plan your AP placement?

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  • What happens when a consumer switch receives a VLAN-tagged Ethernet frame?

    - by netvope
    Suppose you connect a trunk port from a VLAN capable network switch to a (VLAN incapable) consumer-grade network switch via a direct cable. Now the former switch send the later switch a 802.1Q-tagged Ethernet frame. What should the later switch do? Drop the frame? Forward the frame? Undefined behavior? If the behavior is undefined, what is most probable? Edit: Thank you for your answers. To summarize, the behavior of the consumer switch depends on: How it handles frames with 0x8100 in the EtherType field1 How it handles jumbo frames, or frames with payload larger than 1500 bytes Wikipedia has a nice diagram comparing an untagged and a tagged Ethernet frame: There are reports that some consumer-grade switches pass VLAN-tagged frames just fine. 1 or more precisely, where an EtherType field is expected for non-tagged frames

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  • SSH: Tunnel multiple ports to remote server

    - by user1594322
    See attached diagram. Host A - Windows server Host B - Linux server Host C - VMWare ESXi server From host A I can SSH to host B over the VPN tunnel. I can ping host C from host B, but not from host A. I am assuming this is because host C has lost its default gateway. Host C is a VMWware ESXi server, so I would need to tunnel several ports (80,443,902) in order to reach host C from host A. What is the correct ssh syntax to create the tunnel in order to reach host C from host A, and can I do it using a single command, or do I need to run three commands (one for each port, 80,443,902)?

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  • How can I setup a subnetwork using DDWRT and a 2Wire?

    - by MadBurn
    Ok, I'm having a bit of trouble getting this setup. I'm not really sure what direction I need to be looking in. I am on ATT UVerse and I have to use their horrible 2Wire Modem/Router. But with this router, I have very limited control over my network and my wifi range is too small for my house. But, I have a hardwire ran to my TV which I have hooked into a switch and split the line to my PS3. The problem I'm having, is I don't know how to get the Buffalo DD-WRT setup as a subnetwork so that the PS3 can find my Media Server. Here is a diagram of what I'm trying to accomplish: Blue is ethernet.

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  • What am I doing wrong with this cat 6 patch panel wiring?

    - by Max Hodges
    top number is transmitter bottom number is remote terminator 12345678 36145278 is this because I could be mixing T568A and T568B wiring? how do I know if my patch cord is A or B? Do I just look at the plug and match it up with the diagram on the back of the panel somehow? EDIT I read that 36145278 indicates a cross over cable, but I'm not trying to make a cross over. Where did I go wrong? I'm guessing the cable plug is T568A but I wired it to the panel using T568B. So I need to redo it as T568A. But in the future how do I know if I cable is A or B? Cheers!

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  • How to add a 'second elbow' to an 'elbow arrow connector' in Powerpoint 2007?

    - by ricebowl
    I'm trying to put together a relatively complex flow-chart thing -as part of a University assignment (health-related, and gosh, does my university love all things Microsoft Office...). Because of the way the chart progresses I have to connect two objects with a 'double elbow' version of the 'elbow arrow connector.' I accept that perhaps this complexity means I should redesign the chart, but I've tried and failed to simplify things already. If you'll pardon my ASCII art, this is what I have: +----------------+ | 1 | | | +-------+--------+ | | +-------+--------+ /\ |2 +--------|-----/ 3\ +----------------+ \ / \/ Shape 1 should connect to shape 3, currently the line doing so passes behind shape 2. The diagram below shows what I'd prefer, and, frankly, what I need to happen. +----------------+ | 1 | | | +-------+--------+ | +-----------+ +----------------+ | /\ |2 | +--/ 3\ +----------------+ \ / \/ Having explored the various right-click options I'm either being blind and not seeing it, or...well, I'm hoping it's just me being blind and/or stupid, frankly. If anyone has any suggestions they'd be gratefully received. I'm working with WinXP and Office 2007 (at the university, I run on Ubuntu at home, which possibly explains why I'm missing something potentially simple)...

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  • Aligning Numbered Bullet Points in Word 2007

    - by FrustratedwithWord
    I am putting together a very large business manual which incorporates numbered headings, steps to follow, diagrams, etc. When using the bullet points, they align perfectly as I work through the processes. However when I include a diagram, or something different from the "norm" of text, the alignment changes. I would like all the bullet points to be aligned in the whole document regardless of where they appear in the document. Is there a way to save the settings so that the bullets always appear in the same position? Currently I am having to reset the indents by dragging the tabs on the ruler. This will be a large document, so I don't want to manually adjust the numbered bullets every time. Help would be greatly appreciated. Thanks very much.

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  • How can I terminate wisptis.exe in Windows XP SP2

    - by user9950
    I am working in a production environment. Basically I work on graphics oriented enviroment so I used to work on catia and windchill as well. When I am opening a part or diagram in Catia along with CNEXT .exe (catia service) wisptis.exe is starting and making the system halt and Catia will crash. So I need to restart the worksation or I need to close all applications then I need to open catia then again the same problem. So please tell me how to avoid this or stop the wisptis.exe service. If I want to work on catia I need to kill wisptis.exe service otherwise I cant work.

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  • Bridged virtual interface is not available or visible to ifconfig.

    - by Omniwombat
    Hello all. I'm running Ubuntu 9.04, kernel 2.6.28-18, and vmware-server 2.0.1. I'm attempting to setup a virtual linux machine to use a bridged interface rather than NAT or host-only. Both NAT and host-only work just fine. When running vmware-config.pl, I set /dev/vmnet0 to bridge eth0, /dev/vmnet1 to host-only, and /dev/vmnet8 to NAT. When I run ifconfig -a I see the physical interface (eth0), vmnet1 and vmnet8 both of which are up and have IP addresses assigned to them. I also see other various interfaces that are not relevant here. In the web console, when I ask that the guest machine's network card be bridged, it states that a bridged setup is "Not available" and shows the disabled device icon. Inside the guest machine, I do have an eth0 interface which I can set to anything I like, however it can't see my external network, or the host. I do see errors in my vmware/hostd.log which state: "The network bridge on device vmnet0 is not running. The virtual machine will not be able to communicate with the host or with other machines on your network" which confirms the problem. vmnet-bridge is running, and I see the following in my process table: /usr/bin/vmnet-bridge -d /var/run/vmnet-bridge-0.pid -n 0 -i eth0 I confirm that the /var/run/vmnet-bridge-0.pid file is there and that it points to the correct process. I saw this question relating to Ubuntu 9.04 and bridged interfaces, in which the poster determined that the vsock library was not getting built due to a flaw in the vmware-config.pl script. I applied the patch, reran the script, and confirm that vsock.ko and vsock.o are in my /lib directory structure. vsock does show up in an lsmod. My /etc/vmware directory has /vmnet1 and /vmnet8 subdirectories. They contain configuration utilities for running DHCP and nat type services as expected. There is no vmnet0 subdirectory. My /etc/vmware/netmap.conf file DOES show entries for vmnet0; both the name and the device as I configured it from the script. My /dev directory contains devices vmnet0 through vmnet9. They have major device number 119, and minor device numbers 0 through 9. /proc/net/dev shows statistics for vmnet1 and vmnet8, but not vmnet0. I have a /proc/vmnet directory, but it's empty. When I start or stop the vmware service with /etc/init.d/vmware start, I see the following: Starting VMware services: Virtual machine monitor done Virtual machine communication interface done VM communication interface socket family: done Virtual ethernet done Bridged networking on /dev/vmnet0 done Host-only networking on /dev/vmnet1 (background) done DHCP server on /dev/vmnet1 done Host-only networking on /dev/vmnet8 (background) done DHCP server on /dev/vmnet8 done NAT service on /dev/vmnet8 done VMware Server Authentication Daemon (background) done Shared Memory Available done Starting VMware management services: VMware Server Host Agent (background) done VMware Virtual Infrastructure Web Access Starting VMware autostart virtual machines: Virtual machines done Nothing appears to be wrong there. What n00b thing am I doing such that vmnet0 and only vmnet0 does not show up in the interface list?

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  • Logstash shipper & server on the samebox

    - by keftes
    I'm trying to setup a central logstash configuration. However I would like to be sending my logs through syslog-ng and not third party shippers. This means that my logstash server is accepting via syslog-ng all the logs from the agents. I then need to install a logstash process that will be reading from /var/log/syslog-clients/* and grabbing all the log files that are sent to the central log server. These logs will then be sent to redis on the same VM. In theory I need to also configure a second logstash process that will read from redis and start indexing the logs and send them to elasticsearch. My question: Do I have to use two different logstash processes (shipper & server) even if I am in the same box (I want one log server instance)? Is there any way to just have one logstash configuration and have the process read from syslog-ng --- write to redis and also read from redis --- output to elastic search ? Diagram of my setup: [client]-------syslog-ng--- [log server] ---syslog-ng <----logstash-shipper --- redis <----logstash-server ---- elastic-search <--- kibana

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  • Setting up routing for MS DirectAccess to a VMWare EsXi Host

    - by Paul D'Ambra
    I'm trying to set up DirectAccess on a virtual machine so I can demonstrate it's value and then if need be add a physical machine to host it. I'm hitting a problem because the Direct Access machine (DA01) needs to have 2 public addresses actually configured on the external adapter but there is a Zyxel Zywall USG300 between the VMware ESXi host and the outside world. I've summarised my setup in this diagram If I ping from the LAN to 212.x.y.89 I get a response but if I ping from the VM I get destination host unreachable. I used "route add 212.x.y.89 192.c.d.1" and get request timed out. At that point I see outbound traffic allowed on the Zyxel firewall but nothing coming back. I'm past my understanding of routing and VMWare so am not sure how to tie down where my problem lies (or even if this setup is possible). So any help massively appreciated. Paul

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  • Connecting both WAN and LAN ports to the same hub

    - by C. Lee
    For some reason I wish to connect the WAN port and the LAN port on a router to the same hub and make the hub is connected to both networks, the Internet and a private network. Below is a diagram of the network configuration I'd like to build. I tried this and it didn't work as expected. PC 1 has no problem, but PC 2 cannot connect to the Internet. When I ping 192.168.0.1 from PC 2, all packets are lost. It works well when PC 2 is connected directly to the router. What's the problem with the network configuration above?

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  • Remove Excel data link in Visio Drawing

    - by Ddono25
    I am creating a server topology for one of our SharePoint farms and thought it would be easy to just link the Excel spreadsheet with our server information to the Visio drawing to auto-populate some things. It didn't work out that well, but the drawing is finished without it now. I cannot remove the link between the Excel spreadsheet and the Visio diagram. Whenever the drawing is opened the linked excel server list opens in a pane at the very bottom of the window. How would I eliminate the data link? Or just the spreadsheet from view when being opened?

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  • Can I set up a 2nd home wireless router, with router2 connecting to the internet through a desktop which is wirelessly connected to router1?

    - by gil b.
    Hi, I apologize for the crudeness of my MSPaint drawing, but please view my diagram of what I'd like to accomplish: Proposed home network architecture Currently, all devices are connected to 1 wireless router. I would like to make my own subnet, with a box in-between my subnet and the shared wireless router, so that I can learn about IDS, traffic analysis, etc. I was also given a cisco PIX firewall to play around with, and it'd be an added bonus if I could incorporate that into my network. The reason for this proposed architecture is so that I can monitor all MY traffic, without seeing anything going on with my roommates' traffic. my MAIN Question is, is it possible to have my desktop connect to the wireless router with internet via wireless card AND share that connection via the ethernet card, hooked to wireless router 2? cable modem - wireless router - desktop pc connected wirelessly - wireless router 2 getting internet from wired connection to desktop pc - laptops connected wirelessly The PIX can be left out for now, but I'm wondering if it could eventually be incorporated? THANKS!

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  • Best Hardware for a server attached to LCD TV displaying a Flash frontend

    - by DomingoSL
    Hello, i need a recomendation on what hardware (PC) to buy in order to achieve this task: I have a webserver (WAMP) running in my laptop, this server has a webapp who can manage information from a user. In a few words, a user enter in my webserver and a php script ask gim for a mensage who get store in a MYSql database, in other hand, inside the same PC there is a flash running with a frontend who take this mensages and shows it. My english is bad, maybe this diagram may help you: http://img689.imageshack.us/img689/2371/diagramav.png Well i want to connect the pc who runs all (Webserver, MySQL server, Flash front end) to a LCD TV in order to create something like an information spot that will be on almost all day (sometimes all day). Do you recomend to have the webserver and the frontend in the same pc? or to separate in two? What hardware do you recomend? i mean, type of pc, with fans or no, please cheap solutions but good. Thanks for your help.

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  • Best Hardware for a server attached to LCD TV displaying a Flash frontend

    - by Domingo
    Hello, i need a recomendation on what hardware (PC) to buy in order to achieve this task: I have a webserver (WAMP) running in my laptop, this server has a webapp who can manage information from a user. In a few words, a user enter in my webserver and a php script ask gim for a mensage who get store in a MYSql database, in other hand, inside the same PC there is a flash running with a frontend who take this mensages and shows it. My english is bad, maybe this diagram may help you: Well i want to connect the pc who runs all (Webserver, MySQL server, Flash front end) to a LCD TV in order to create something like an information spot that will be on almost all day (sometimes all day). Do you recomend to have the webserver and the frontend in the same pc? or to separate in two? What hardware do you recomend? i mean, type of pc, with fans or no, please cheap solutions but good. Thanks for your help.

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  • faking NAT with a VMware distributed switch across multiple hosts

    - by romant
    I need to construct a NAT for certain machines within the network. Wish to do this with dvSwitch - as it seems the logical way of attacking the problem as in this scenario there's just under 30 hosts. In order for the NAT'ed VM's to have access to the 'real' network. I am providing a 'router' VM, which will have access to the WAN/outside network, and also act as the DHCP server for the NAT'ed machines. Problem Space When the machines connected to the NAT interface and the router are on the same host, then they get an IP from the router VM, and work perfectly (routed outside). Unfortunately machines on other Hosts that are connected to the dvSwitch do not get an IP and further tcpdump shows no network data getting through across the hosts within the dvSwitch. Has anyone achieved a NAT solution using a dvSwitch before that they could share?! Thank you. EDIT: Including the diagram.

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  • How can I set up VLANs in a way that won't put me at risk for VLAN hopping?

    - by hobodave
    We're planning to migrate our production network from a VLAN-less configuration to a tagged VLAN (802.1q) configuration. This diagram summarizes the planned configuration: One significant detail is that a large portion of these hosts will actually be VMs on a single bare-metal machine. In fact, the only physical machines will be DB01, DB02, the firewalls and the switches. All other machines will be virtualized on a single host. One concern that has been is that this approach is complicated (overcomplicated implied), and that the VLANs are only providing an illusion of security, because "VLAN hopping is easy". Is this a valid concern, given that multiple VLANs will be used for a single physical switch port due to virtualization? How would I setup my VLANs appropriately to prevent this risk? Also, I've heard that VMWare ESX has something called "virtual switches". Is this unique to the VMWare hypervisor? If not, is it available with KVM (my planned hypervisor of choice)?. How does that come into play?

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  • NAT and ISP Subnet when load balancing on pfsense?

    - by dannymcc
    I have a pfsense box that I'm trying to plan the configuration for. I am going to be load balancing two ISP's, each with their own /29 static IP subnet. The question I have is in relation to the way those IP's are associated with workstations on the local network. Currently I have some workstations with local (192.168.1.0/29) IP addresses, and other more complicated workstation setups have their own public IP address. Some of the more complicated systems have a NAT 1:1 configuration where I forward a public IP address to a local IP address. Others however are directly on the ISP subnet and cannot be seen on our local network. Is this configuration possible with pfsense? If so, what terms should I be looking through the documentation for? Here is a simple/brief diagram of what I am trying to achieve.

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  • Vim - dynamic list of open buffers in a window

    - by asfallows
    I've investigated a few ways to maintain a list of open buffers in Vim, and some of them are very good, but none of them seem to behave the way I'd like. It's very possible that nothing like what I want exists, and it can't hurt to ask. I've been using NERDTree in GVim, and I like the idea of putting the information in a slender left-hand window. I've put together a handy diagram for how I'd like my environment to look: |--------|---------------------------------------| | | | | | | |NERDTree| Windows | | | | | | | | | | |--------| | | | | | | | | List | | | of | | | Open | | | Buffers| | | | | | | | |--------|---------------------------------------| So my question is: Is there a vim-native or plugin-enabled way to maintain a list of currently open buffers and select/edit/close from that list, inside a window similar to NERDTree? I understand that this approach may be incongruous with the Vim way of doing things, and if you feel like I'm missing something about how to manage multiple files in a Vim session, please leave a comment with suggestions!

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  • Can I set up a 2nd home wireless router, with router2 connecting to the internet through a desktop which is wirelessly connected to router1?

    - by gil b.
    Hi, I apologize for the crudeness of my MSPaint drawing, but please view my diagram of what I'd like to accomplish: Proposed home network architecture Currently, all devices are connected to 1 wireless router. I would like to make my own subnet, with a box in-between my subnet and the shared wireless router, so that I can learn about IDS, traffic analysis, etc. I was also given a cisco PIX firewall to play around with, and it'd be an added bonus if I could incorporate that into my network. The reason for this proposed architecture is so that I can monitor all MY traffic, without seeing anything going on with my roommates' traffic. my MAIN Question is, is it possible to have my desktop connect to the wireless router with internet via wireless card AND share that connection via the ethernet card, hooked to wireless router 2? cable modem - wireless router - desktop pc connected wirelessly - wireless router 2 getting internet from wired connection to desktop pc - laptops connected wirelessly The PIX can be left out for now, but I'm wondering if it could eventually be incorporated? THANKS!

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  • What are the best tools for modeling a pre-existing SQL database structure?

    - by Ejoso
    I have a MS SQL database that has been running strong for 10+ years. I'd like to diagram the database structure, without spending hours laying it all out in Visio or something similar... I've seen nice models diagrammed before, but I have no idea how they were created. From what I've seen - those models were created in advance of the database itself to assist in clarifying the relationships... but my database already exists! Anyone have any suggestions for tools that would work, or methods I could employ to tease out a nice clean document describing my database structure? Thanks in advance!

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  • Tunneling over HTTP

    - by Morgan
    Hello, I have a network at work that is locked behind a firewall and Internet connection is available only by using a proxy server. At work, I can connect to databases that are distributed across the network. However, at home, I cannot connect to the proxy server or the databases. How can this be done? I can access my workstation via LogMeIn, so I can install anything on it. I thought of installing some kind of tunneling mechanism in my workstation. Then, at home, I could connect to this mechanism, which would in turn do the required connections. So essentially, what I'd like to do can be represented by the following diagram: Home = Workstation = Database. For example, whenever I connect to, say, 10.140.0.1:1234 at home, this would be redirected to 10.140.0.1:1234 of my Workstation, because 10.140.0.1:1234 is only available through the corporate network. NOTE: I'm using Windows XP.

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  • FCoE, on any Ethernet switch?

    - by javano
    I understand the concept of FCoE. I have looked at the Wikipedia page and looking at the layer 2 frame diagram, it looks like FCoE really should "just work" on any Ethernet switch, but is this really the case? If so, what do switches like Cisco's Nexus 5k or 6120P offer that normal switches don't (in specific relation to FCoE)? I am just using those two switches as examples. On the Nexus 5548UP page for example it says the following; Unified ports that support traditional Ethernet, Fibre Channel (FC),and Fibre Channel over Ethernet (FCoE) Well if FCoE runnins over regular Ethernet, that why does it support "Ethernet and Fibire Channel over Ethernet"? This is why I am curious as to weather FCoE will run on any Ethernet switch and these switches just support "bonus" features, or if you do indeed require a specialist switch. Thank you.

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