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I need to discover the IP address of a specific Ethernet switch on my LAN. What tool must I use for this?
The difficult we do right away...
...the impossible takes slightly longer.
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I first thought of SNMP, but that's obviously wrong (you need to know the tcp/ip address before you can query a device about its abilities) ... SNMP does have a discovery process, but Im not sure how it works
.. then I remembered that ICMP has/had a 'sub protocol' for router discovery .. and tippity tap, https://tools.ietf.org/html/rfc1256[^]
not sure if either of those will serve as a starting point for you .....
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Thank you. I looked at the page you link to, but it seems to be only for router discovery. I would like to discover a switch.
I did find a number of tools for network enumeration at Network Enumerators - securitywizardry.com[^], but I don't know what tool is good for what.
Are you able to recommend any of them?
The difficult we do right away...
...the impossible takes slightly longer.
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I'd have a look at SolarWinds NPM Network Monitoring Software - Network Monitor | SolarWinds[^] - it has a discovery tool - but cheap it is not I only know of them because I used to use KiwiSyslog a toolset they bought
(I used to have a discovery tool based on WNETEnum ... that fed the data to Visio to draw, but have log lost where I put it - it was a DDJ tool, and I cant recall if it did switches or just 'anything ip')
Check out SPLUNK while you're at it and see if it does discovery
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Thank you Garth, I appreciate it.
The difficult we do right away...
...the impossible takes slightly longer.
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I dont know if you found anything useful .. I found the original article I thought of (but it only does PC's, Printers etc) Visualizing Network Resources Using Visio | Dr Dobb's[^]
Im not sure what your motivation is Richard - if you were being paid, and had to write a tool (that was cheaper than SolarWinds for example), Im sure you could gather a list of all the tcp/ip addresses on your network, and then reduce/filter the list perhaps (eg remove PC's, printers ...) , leaving a list of addresses you could then issue SNMP calls against (for instance) ... thats what I would do
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Depends on the switch.
Normally I would use a tool from the manufacturer.
Otherwise you would use a tool that implements LLDP (Link Layer Discovery Protocol) for low level switches, unless it's a Cisco, they have their own protocol (CDP).
If it's a high level switch SNMP should suffice.
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Thank you.
The difficult we do right away...
...the impossible takes slightly longer.
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I think this will ease out the problem, let me try this. Thank you
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hi..everyone..i want to install ]project open[ version 4 on fedora server.can anyone tell me what are the exact procedure/steps to install it from scratch..any help would be appreciated..
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a. I have a Sony Vaio Notebook with a nearly full 256GB SSD drive, 8GB Ram - its seems like its quick to overheat and shuts itself down frequently, especially if there's a lot of network traffic
b. I have a MacBook Pro, 15", 500GB SSD
c. I cant afford to purchase a new system (Windows or Mac) AND I'd like to migrate the 'content' off the Sony Vaio
My plan/thoughts goes something like this
- Upgrade the SSD in the Macbook Pro to 2TB
- Install Mac Parallels on the MacBook Pro
- Import the Sony Vaio as a VM onto the MacBook Pro (yeah, its going to be a mutha of a VM)
- If the 'Vaio VM' is usable, good, if not, continue
- Create a new Windows 7 VM on the MacBook under Parallels (maybe on an external drive), Install VS 2015 Onto it (the Sony Vaio only has VS2010 on it)
If I can get past step (3), my big worry is if Parallels can actually handle a VM that size
Any thoughts ? or do I download the 14 day trial of Parallels and 'jfgowi' (just freaken get on with it)
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I don't have a Mac, but a quick Google shows a lot of results for using large VM images. Most VM software can support VMs of >= 1TB, so I don't think it will be a problem.
What do you get when you cross a joke with a rhetorical question?
The metaphorical solid rear-end expulsions have impacted the metaphorical motorized bladed rotating air movement mechanism.
Do questions with multiple question marks annoy you???
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cheers - Im on pain meds for a back issue at the moment, its affecting my google-fu
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I hope you feel better soon! One of my friends has a Hyper-V VM with a 64 TB drive and it works fine (he is using a RAID system to store it). I don't know what he has on it, but I do know it is about half full.
What do you get when you cross a joke with a rhetorical question?
The metaphorical solid rear-end expulsions have impacted the metaphorical motorized bladed rotating air movement mechanism.
Do questions with multiple question marks annoy you???
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I don't do Mac, but a previous coworker swore by Parallels. He had a Mac with Ubuntu and Windows VMs, that's how he did all his work.
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lately since I did a code release for a Webforms project running on Server Core 2012 IIS, I've been getting a much larger number of these errors.
Most of them come from bots and crawlers, but a majority are coming from lets say Android phones from Sprint.
I did the machine key in the web config, really didn't make a difference.
The errors are on embedded scripts and images in a DLL. I can see now that there coming from encypted pages, SSL pages. Hmm?
I've been getting reports of users being kicked out when this error occurs on mobile phones.
Request information:
Request URL: https:
Exception information:
Exception type: HttpException
Exception message: Unable to validate data.
at System.Web.Configuration.MachineKeySection.EncryptOrDecryptData(Boolean fEncrypt, Byte[] buf, Byte[] modifier, Int32 start, Int32 length, Boolean useValidationSymAlgo, Boolean useLegacyMode, IVType ivType, Boolean signData)
at System.Web.UI.Page.DecryptString(String s, Purpose purpose)
at System.Web.Handlers.AssemblyResourceLoader.System.Web.IHttpHandler.ProcessRequest(HttpContext context)
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I have installed SQL server 2008 R2 and I have created databse engine instance. I am configuring mail setup. What should be in the field of server name? I am new to this and don't know what to put there. Please help me out.
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The name of your SMTP server that will be used to send the mail
=========================================================
I'm an optoholic - my glass is always half full of vodka.
=========================================================
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On New Database Mail Account screen, for Server Name specify your SMTP Server name like
Hotmail: SMTP server name: smtp.live.com, Port number: 587
Gmail : SMTP server name: smtp.gmail.com, Port number: 587
Yahoo : SMTP server name: smtp.mail.yahoo.com,Port number : 25
AOL : SMTP server name: smtp.aol.com, Port number : 587
The server requires a secure connection (SSL) - check this box
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Here's what's going on...
- I have 18 URLs with approaching renewal dates at GoDaddy
- Prices range from $9 to $20 depending on the top level domain
- The prices seemed inconsistent to me; fred.info had a different price from barney.info
- Called a couple of other places
- Domain.Com[^] seemed to have better prices
GoDaddy wants me to (but is not requiring me to) renew for 2 years on each name.
The total is about $510 (five hundred, ten dollars) for the two year package.
The average price works out to a little over $14 per domain name. (I think it's $14.14)
Is it time to stick with the same place I've been for five or ten years, or jump ship ?
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At home I got Windows 10 Pro.
I also have Hyper V with a few virtual machines, including another (virtual) Windows 10 (pro) machine.
I am trying to share file between the two! Doesn't work!
My VM use an External (Virtual) Network switch
On my local (real) PC I have a file share available to everybody (read/write access).
On my VM, in the file explorer > network, I can see my (real) PC, but I can't open the file share!!
Any idea how to progress from there?!
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OK.. so I have an application built on the .NET 2.0 framework with a MySQL database which needs to run on a 64-bit Windows 2008 Server (with service Pack 1)
After installing it, in order to get it to run, I have to go to the application pools in IIS, find the relevant one, click on Advanced Settings, and set "Enable 32-bit applications" to True.
That works - otherwise I get a "Server Error in '/' Application. ... is not a valid Win32 application" page.
Trouble is though, as soon as I do set this, while simple pages display al;right, as soon as I get to one that requires database access I get this error:
ERROR [IM002] [Microsoft][ODBC Driver Manager] Data source name not found and no default driver specified
If I set "Enable 32-bit applications" to False, I can run a simple test page that access tha database (uncompiled, with inline server code) and this works fine - so the connector is working adn the connectionstring correct.
All of which kind of leaves me between a rock and hard place. Any ideas gratefully received!
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You've created an ODBC data source using the 64-bit version of the ODBC Administrator tool. You need to create it in the 32-bit version of the tool, which is located at: %SystemRoot%\SysWOW64\odbcad32.exe
Data Source Names and 64-Bit Operating Systems[^]
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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