Networking

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Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.

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Hello,

I'm trying to understand the basic route concept on cisco router.

ip route 0.0.0.0  0.0.0.0  10.10.10.1

If I do the above command, would all the traffic will  forward it to 10.10.10.1 ?
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Hi All, I had this same question (Listing the Shared Network drive size (UNC path) using powershell) and the solution provided worked perfectly. My problem is the sizes are outputting as things like 4.74842E+1, etc. How do I get them converted o GBs and MBs in the output?
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How can I test the speed between two computers on the network?
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Hi Experts

thanks for your in advance.

problem definition:
I have only 1 Active Directory server with DNS integrated in an isolated network and I want all DNS queries to be made to itself only so no DNS queries are broadcasted.
AD is imported from PROD environment and previously serving multiple zones and multiple different VLANs.  I now need to use this imported AD DNS server to not to forward any broadcast queries to different DNS servers.

reasons: Server is imported from PROD  environment so whatever the IP details it has in DNS tab should change I believe. it currently have multiple IP addresses listed primary and secondary DNS

options:  
a)should I only set up one DNS server IP which would be the itself 127.0.0.1 as primary DNS server and that's it leave the rest with no config. only 1 DC in this isolated environment which holds all the FSMO roles and  has no connections to PROD.
b) should set new port forwarding on Pfsense firewall to forward all DNS queries to  127.0.0.1

thanks for the help
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I have taken over a network that someone else setup.  I have VMWare with 3 Windows 2008 servers running on one box.  My local network has IP addresses in the range of 10.0.0.1 through 10.0.0.254.  My domain controller is also my DHCP server.  For some reason the person who preceeded me assigned the following network addresses to the servers, 10.0.0.2, 10.0.0.3 and 10.0.0.7.  I can access the VMWare client through 10.0.0.7 or 10.0.0.8.  Would I cause any problem if I were to change the IP address for the server from 10.0.0.7 to 10.0.0.9?  I have had a couple times when I have had problems with the server and could not access the VMWare client through 10.0.0.7 so it would be more convenient if the server had a different address.
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Hello,

All the trunk port needs  be connected using cross over cable or depends on the switch? IF MDI is enabled then don't need it ?
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I would like to buy a proxy service and wanted to know from where I can buy a cheap proxy service?
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1.  Can we configure IP address on  Layer  2 switch port ?
 
2.  Do  we need to have Layer 3 switch to configure IP on switch port?  

3.  Default gateway needs to be on router or switch ?
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I currently have domain controllers in common Domain/Forest on subnet 10.2.*.*.  I am adding a new domain controller at a Remote DR site -- remote network is setup to be an extension of our network -- so new domain controller is also on subnet 10.2.*.*.  Clients are in subnet 10.2.*.*.  How do I setup Site so that clients use 'local' DCs - and only remote DR DC if local DCs are down.  It confuses me that the subnet is common - although the one DC will be on a link 100 miles away?

Thanks
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Hi,

Having trouble adding Win 8.1 PC to domain with 2012 server.

This PC dropped off the network so readding. Get the following error - 'The specified domain either does not exist or could not be contacted'

Server can be pinged via IP & FQDN.

Tried -
Adding fixed IP to PC
Adding via powershell
Changing PC name

Any ideas?

Thanks
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Myth Busting: MongoDB Scalability (it scales!)
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Myth Busting: MongoDB Scalability (it scales!)

I was talking with one of my colleagues from our Technical Account Manager team about MongoDB’s scalability. He mentioned to me that several customers have been telling him that “MongoDB doesn’t scale!” MongoDB’s scalability was in question?

My response was, “Is that a joke?"

Hi all... we have a GMail account that we have been sharing the same mailbox via IMAP in Thunderbird Ver. 52.2.1 for months with no issues.  As of last Friday (July 14, 17) all of the PC's stopped being able to sync their email with the server.  They are all getting an error message that says "Server ____@gmail.com has disconnected. The server may have gone down or there may be a network problem."  I've not been able to find any indication that GMail is having any issues and have had no luck getting any of them working.  Deleting the account and recreating it works but it will not load any of the folders and still gives the same error message.  Accessing the account works normally when using the GMail website.  I've spent most of the day reading through and trying some of the old suggestions on old blogs to no avail.  Any ideas would be greatly appreciated!

Thanks,
Greg
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This is for windows server 2016 guys
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An esxi host has two drives. One drive is used for the hosts, the other is used for backups.

What I'd like to do is use part of that second drive as storage for one of the vms so it can become a backup server for other things on the network but I'd also like to backup my vms to this local drive.

I know I can make snapshots, including making them onto the second drive but I'd like to have full backups that can quickly be imported should the first drive suffer problems.

Any way of doing this?
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Hello,

I would like to setup a VPN connection from home office to our office and I'm new to networking.

What are network  hardware/software  I needed?

From home-   Need VPN client

From  Office - Router to terminate
                         VPN server software ?
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Hi Experts,

I am installing new wireless equipment at a very small motel this week. They have AT&T business internet and just want to provide an SSID and password/key to guests to connect. No splash screen or anything like that. They were originally using Netgear signal boosters that you plug into wall outlets, but customers stole them.

I told them I would only use pro-level equipment, so I have ordered 2 UAP-AC-PROs and the Ubiquiti 8-port 60w PoE Switch for 12 rooms. Eight rooms are in a 2-floor building, four on each floor and the other building is just four rooms on a single floor. I plan to install one AP on the ceiling in room 3 (middle, bottom room) of each building, including the two floor building. The rooms are small so I think this will suffice.

Questions:

Do I need to order a security device or new router? Can I use the AT&T provided router and connect it to the Ubiquiti PoE switch and configure the WAPs using the Ubiquiti controller software installed on the office PC? And will that software without a security device or new router be able to provide two SSIDs?

The owners are trying to save money (of course!) so I wanted to see if any other gear was necessary. It appears that the solution I've provided will do the trick, but it is not ideal security-wise. Any advice is appreciated!

Thanks,

Rich
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I have a DVR system for my IP camera systems and I have a sonicwall firewall. I need to access my dvr through my public IP address while out of office. I did the following steps:

Creating the necessary Address Objects

step 1
Then I did

step 2

Creating the appropriate NAT Policies which can include Inbound, Outbound, and Loopback

Then I did

Step 3

Creating the necessary Firewall Access Rules

then Firewall.png

I did these steps and still cant access the DVR system when outside my network.
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Hello Experts,

From my Windows VMware host I'm able to ping a physical machine outside of the VMware network (the physical machine is on my local network with ip address 192.168.1.11). However, I'm unable to ping the Windows VMware host with ip address 192.168.72.129.

Normally, I would just have assumed that the problem was simply because they're on different subnets, but because I can ping 192.168.1.11 from the Windows VM I'm a little unsure why I can't ping back the Windows VM on 192.168.72.129 from 192.168.1.11.

Any thoughts?

Cheers

Carlton
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I have a server in a data center which assigns me networks and IP ranges.
I typically run more bare metal servers but in this case, I need to add another network onto an esx box.
The box has two NICs, one is public, the other is for the LAN side.

I have a /29 on the public NIC and I need to add another /29 which is a completely separate network and gateway.
I want to avoid getting into VLANs and other complicated configurations and have read that I should be able to add a second network but reading the explanations are simply not helpful to me. Therefore, I'm posting here for a little hand holding.
2017-07-15_182937.jpg
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Hi,
Because I live in a small space I've been struggling with wifi interfering with my bluetooth devices.

Things I CANNOT do:
  • Move the router farther away: It's already as far away as it can get (about 5 feet).
  • Use the 5GHz frequency: The wifi devices in question only work on 2.4GHz

Things I've already tried:
  • The transmission power is set to low
  • Disabled Smart Connect

What settings can I change on my D-Link AC3200 router in order to make it interfere less with bluetooth frequencies? Some options are to change the wi-fi channel from 11. Other options are to change the 802.11 mode or channel width.

I spent good money on this router years ago before I used bluetooth much. Now I use bluetooth much more. Should I sell this router and get one which behaves better with bluetooth in small spaces? Other than the bluetooth interference it's been a rock solid router even when I lived in a much larger space.

My primary bluetooth uses are headphones and video game console controllers in case it matters.
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I just started at a new organization & don't have a lot of information about their network. They've thrown me into it & basically said, "good luck." The first major problem I see is that I can't force gpupdate from a workstation because it can't find the Group Policy server. Both DCs are virtual. DC01 can see the rest of the network; I can ping the other DC & workstations, firewall, etc. but nobody can reach DC01. I can't ping it, I can't replicate AD, nada. If I run netstat from the "working DC," I get Server DC02 IP Address 10.10.1.6/Server DC02 IP Address 10.10.1.5, though. So, I run DCDIAG on DC01 & get failures for Advertising & SystemLog. Advertising: Warning: DsGetDcName returned information for \\DC02 when we were trying to reach \\DC01. SERVER IS NOT RESPONDING or IS NOT SUITABLE. SystemLogsays "The DFS Namespace service could not initialize cross forest trust information on this domain controller, but it will periodically retry the operation. The return code is in the record data." I've tried running an authoritative & non-authoritative replication between the 2 of them. No dice. I've been beating my head against this thing for a couple of days now. Anybody got any ideas of where else to look?
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This could be an OEM issue as I took an old gateway box and put in an Asus XM 88 plus board with AMD chip and a few years later I am have bazaar connectivity.

I am on my third outlook profile this year.  I have outlook 365.  I lose connection and most the time it works going to outlook.office365.com.  Some times neither work, yet other sites work and I can ping anywhere I try.  I have been solving the issue by disabling network adapter and  then enabling.  Well it has stopped enabling.  worst case I would recycle modem.  Now the adapter will not enable in either network screen or services screen.  I also have had search issues in outlook and re-indexed.
I also have DNS issues with some websites.  Something tells me this is one fix and I could be wrong, just a hunch after 30 years of messing with these things.

Things that I can remember that I have done.

Removed device and driver - reinstalled both with new and with current drivers
Replaced modem
Replaced Cables
run  ping to 127.0.0.1 -t and it ran for two days no hickups.  
I have set dns to 8.8.8.8 and 8.8.4.4
I have undone that and redone that
I have run sfc /scannow
I have dumped DNS more times then I can count.
removed outlook accounts and restarted from scratch
I know there is more, but at this time after serving 8 for dinner, and needing to get this fixed, that is what I remember.

MS said that the latest update would fix my search issues.  They lied.  I totally re-indexed then had connectivity …
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Hi Guys
I have been tasked to migrate our SHA-1 Certs to SHA-2 on the CA Servers on our network. However, is there a PowerShell script that can extract SHA-1 information from each of the servers in the estate telling what the certificate is being for?

We have hundreds of servers and want to avoid logging onto each one to try and identify what the certificate is being used for.

I don't want to be migrating the SHA-2 certificate onto the CAs and then everything (Server, OS, Application, Process) breaking because it relies on SHA-1 certs.
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Anybody know how to set the WIN10 Enterprise lock screen with GPO? "Computer/Administrative/Control Panels/Personalization/Force a specific lock screen" Doesn't seem to be working with windows 10. Thanks
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Hello,

I am trying to setup my server and  datacenter nework admin told me configured the VLAN and network segement which I have requested, but after I connect my server, I can't ping anywhere or  from outside I can't ping. I was trying to do ARP  from neighbor server and couldn't get the ARP address.  What else data center networkin can check? I am not sure what to ask, he told me everything looks from his end. I can't even ping gateway.  Can we ping from switch ?
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I am setting up a windows workgroup (small setup of 10 machines), I want to setup an Admin account along with a user admin account. there is a mixture of windows 7, 8 and 10 computers on the network. I want to know how can I hide the admin account so on boot up they only see the user account, and I don't want the user to be able to change the Main admin password. Is that Possible?

thanks
0

Networking

90K

Solutions

66K

Contributors

Networking is the process of connecting computing devices, peripherals and terminals together through a system that uses wiring, cabling or radio waves that enable their users to communicate, share information and interact over distances. Often associated are issues regarding operating systems, hardware and equipment, cloud and virtual networking, protocols, architecture, storage and management.