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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I have a client based in China , there is one PC on the network which I cant connect to any microsoft services on.

I am unable to activate office, i am also unable to connect to the mailbox or login to skype for business.  when I attempt to activate office I get a error which stated "Sorry, We are having some tempoary server issues"

When  I attempt to setup outlook with a mailbox which has been fully tested I get this error " Something went wrong and Outlook couldn't set up your account.Please try again. if the problem cntinues, contact your email administrator"



See below for what I have tried to sort this issue.
I am unable to run the outlook Autodiscovery tool
  • Creating new outlook profile.
  • Office repair
  • Uninstalling office and Re installing
  • I have tried a autodiscover fix
  • Deleted all previous credentials from credential manager.
  • Reset network adapter.
  • Made sure I can access the mailbox via OWA and also made sure I can ping office.365.com
  • I may have left some things of this list but I have been troubleshooting this for a while your help would be much appreciated.
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Hello,
I want to create a MikroTik script that search for a rule in nat with comment "rule1" and delete it and add a new rule with order 4
so could you please help me  :)
thanks.
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Is there a way on an A10 (AX) load balancer to create a single LTM VIP that has 4 servers behind it. 2 of the servers in a California datacenter, 2 of the servers in an Illinois datacenter.  Incoming requests would only load balance round-robin between the California servers and in the event that datacenter goes dark, the A10 will then round-robin between the Illinois servers?

Thank you!
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i am working on a muilt network wordpress site that when the user signs in the site is created. i have it that the site will create and change the theme. what i need is to run woocommerce after creating the site.
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I have no Broadband Internet Service in a building of mine, so I use a TMobile Hotspot device for WiFi (an Alcatel Model MW41TM-2ATBUS1-2) which uses my Cell Service for Internet.
I need a Plug-able Ethernet port somehow, and this device has no ports.
How can I get to where I can plug in an Ethernet Cable that has Internet access?
I was thinking like ... setup a Router in Bridge mode and/or use a Router to extend the network. But so far I an unable to get that to work ... wondering if I need a different device or maybe those Hotspots are unable to be bridged/extended.
Any ideas?
Thx all in advance.
- B
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Hi all,

We're in the process of upgrading a load of our systems, at the moment we're focussing on getting Exchange and the DCs up to speed.  We're now running Exchange 2016 on Server 2016 wth DCs also on server 2016 running at a functional level of 2012.

And we're getting performance issues.  We’re getting some periodic disconnections from Exchange to the domain controllers and it’s causing problems for the users with prompts to reconnect.

I’m seeing error 5719 in the system event log:

 

The explanation for which is this:
This computer was not able to set up a secure session with a domain controller in domain OUR DOMAIN due to the following:
There are currently no logon servers available to service the logon request.
This may lead to authentication problems. Make sure that this computer is connected to the network. If the problem persists, please contact your domain administrator.  

ADDITIONAL INFO
If this computer is a domain controller for the specified domain, it sets up the secure session to the primary domain controller emulator in the specified domain. Otherwise, this computer sets up the secure session to any domain controller in the specified domain.

The AD’s connect to and can see the Exchange server perfectly well, so I’m at a loss.  The computer account seems to be in good shape as well.

We are also pushing the hardware pretty hard.  We're running four B230 blades with ESXi 6.5 and VMWare 6.5.  Although the recent update to VMWare 6.5…
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We have 2 offices that are about 250meters apart. We are yet to install the camera feed in one, but have done for the other years ago. We bought this, https://www.amazon.com/dp/B01N0B6KSA/ref=cm_sw_r_wa_api_ysh-BbDAEKWAS

But now have an issue. We want the security post to be in simply one location.

Q: How to transmit live video from camera  to another location 250m away, and where is the best place to put the 16 Channel NVR for each, so we can have a security personnel stationed to review
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Hi;
I have a question on setting up distribution switches, the LAN  network connects to two L2 distribution running VLT (Virtual link Trunk). Both switches are connected to Routers (Pri MPLS and backup Internet). The customer plans to run HSRP between the two ISP routers and use RFC 1918 for the IP Addressing (Physical and virtual addresses for the routers). Do you see any spanning tree issues here, esp. during the failover? I am quote new to VLT and that's why asking this question.

Thanks
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Hi ...
What is the best way to connect to Windows 10 machines from a Debian machine to run Powershell scripts.
Would someone please have some inputs ?
Thanks
0
Hi,

 I am looking for a SMART UPS for the new tower file server like "PowerEdge T340 Tower Server or HP Proliant ML350 Gen10" . Traditionally I buy APC SMART-UPS 1500 LCD (Part# SMT1500C) for servers, but I am open to other brands as long as it has excellent Hyper-V management software that shuts down and restarts virtual machines during power outage.
 I will be connecting a file server & monitor to this UPS. For switches and other network devices, I am going to use another battery backup UPS (no management software).
 Can you recommend?

 Thanks in advance.
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hello brothers, i have a question, can i implement a network access control solution in a virtual lab ( 802.1x + Cisco ISE ) with VirtualBox + GNS3 ??
thanks
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In clients network, users keep losing network connectivity.

On WIndows SBS 2011 server, client keeps seeing these messages in the event log.

Error MSExchangeFBPulish EvenID 8213
Warning ASP.NET .050727.0
Warning MSExchange ADAccess 2080
Warning MSExchange ADAccess 2106

DCDIAG:

Performing initial setup:
 Trying to find home server...
 Homeserver = SERVERNAME
 *Identified AD Forest.
 Done gathering initial info.

Doing initial required tests
Testing server: Default-First-Site-Name\SERVERNAME
Starting test: Connectivity
the host ._msdcs.domain.local could not be resolved to an IP address. Check the DNS server DHCP, server name etc.

What would be the logical steps to find / solve this issue?

Thx for your help
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We recently migrated from exchange 2010 to exchange 2016 and all went well, but now when user connect their outlook to exchange server it require them connected to internet and without internet it doesn't work, it shows exchange is not online, whereas the exchange is inhouse and should work on LAN not through internet.

Did we miss some config step or not done properly? please advise.
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Uninstalling Kaspersky Security Center 10 Network Agent 10.4.343 using Kaspersky Security Center 10 console with the "Uninstall application remotely network agent" task is successful.  Or so the console says.  The PC, on the other hand, even after a reboot, still has it installed.  Tried this on three separate PCs with the same result.  Removing the other KAV agent is successful, just not the Network Agent.  How do I find out where the issue is when it thinks it worked correctly?
Capture.PNG
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What is the network tolerance that Citrix XenApp 6.5 can with stand before disconnecting a session? Does a session disconnect with a single packet dropping or can Citrix sustain multiple packets being dropped without disconnecting the session?
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I have an office with a very basic network, maybe 8 people max.

Comcast
       |
SonicWall TZ300
       |
Unmanaged Switch---CloudTrax AP
       |
    LAN

We are having issues with intermittent wireless issues. Maybe once or twice a week, wireless will completely lose internet access. They will still be connected to wireless, but cannot reach certain internet locations, such as 8.8.8.8. Pinging 8.8.8.8 fails, but something like 75.75.75.75 will work fine. I run a tracert to 8.8.8.8, and the connection seems to drop about 8 jumps out of our Firewall at some random Comcast hop. At this time, wired devices work fine, no issues. And they take the same path as wireless. The only resolution we have found is to reboot the AP.

I have checked the Firewall, no issues I can find there. I've checked the packet makeup of both wired and wireless devices leaving the Firewall, and they are exactly the same except source MAC.
We have replaced the AP, brought the troublesome AP to our office and it works fine, the new AP has the same issues.
Comcast has replaced the modem, this didn't do anything.
I played around with the CloudTrax's settings, they are pretty basic but it hasn't fixed anything.
I've looked for loops, there is about 8 PCs in this office so it wasn't hard, nothing there.
The issue exists on phones and laptops, running anything from Win7 to Win10 and iOS/Android.
We replaced the Firewall(it was due to be replaced anyways)

It's worth noting, that while a …
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Hello Experts,

I have 5 devices and I want to have them monitors for any up and down status for the IPs.

Is there  a free software I can install in one of the servers and add these devices.

Thanks,
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We have both Tripwire and Cimtrak.  Tripwire is up and running normally and can capture and run reports just fine.  On the other side, our Cimtrak is not up and running 100%.  Is there a way to mimic Tripwire's policy and bring it into Cimtrak?  We wanted to capture information regarding PCI and other security models, but I'm new to both Tripwire and Cimtrak.
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I have a pc and a server on vlan A.  I have a syslog server on vlan B.  I can ping from vlan A's pc to the server on vlan A.   PC on vlan A connects to servers on Vlan B.  

I can't send server vlan A's syslog messages to the syslog on vlan b.  The server on vlan b cannot ping the server on vlan A.  

Both vlans have default routes and are inside the firewall.  I added an ACL on the inside interface to allow the syslog traffic from server on VLAN A to syslog server on vlan B. Ping is open as well.

Any suggestions?  I've already checked the software firewall and that has entries allowed already.
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Dear experts,

I have a network with Servers and end points that need to communicate via IP and TCP ports. I would like to add these IPs to our SolarWinds management, can I also monitor TCP specific ports connection.

On the network or server how can I find how many TCP ports are established between the server and clients.

Any Feedback will be appreciated.
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Hello Experts,

I am at a customer site and I see that they have fiber connectivity  from distribution switch to access switches. When I look at the configuration I do not see any UDLD protocol applied.

My question is can I apply the UDLD protocol on the distribution switch and access switch globally and will that affect the uplinks. I am hoping to not have any distruption on the network.

Please assist
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Hello Experts - I'm working on a SAN upgrade and we're going all fiber to gain some performance.  In order to benefit from this, I need to add a dual port fiber NIC to each of my 3 ESX servers.  I have the hardware here and can physically install them but that's as far as my experience goes.  I'm familiar with how this would work on a Windows server but have no idea how to configure them so they show up in VMware.  Is there an article that details how this should be done that someone can point me to?
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Hello All,

I have a user that is having issue when connected to the server via VPN.  All works fine until the machine goes to sleep.  When she wakes the system and tries to access mapped drives she gets the message "An error occurred while reconnecting P: to \\xxx.xx.x.x\folder name.  Microsoft Windows Network: The local device name is already in use.  This connection has not been restored"  This only happens after it goes to sleep and when it wakes up she can reconnect to VPN since it disconnected when it went to sleep.  But if she goes to file explorer and types in the ip of the server in the address bar it can reconnect and see all of the shares.  Her mapped drives point to those shares.  I noticed that the power settings on the network card were turned on to allow Windows to turn off the card when necessary.  I changed that setting but she has not yet tested it.  I also set her system not to sleep when on power.  But I have never seen this happen before.  The system is fully patched with Windows 10 Pro.  Any thoughts?

Regards,

Rob
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vSphere HA Agent on this Host[Esx 6.5] Could not Reach Isolation Address 10.X.X.X  ie Gateway IP

Raised with Network Team saying all fine from Network end while we are not able to ping anything except Host IP ,No result in traceroute too

Please assist for required action plan to fix the issue
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BGP Peering with Loopback

in the topology below, can I configure R1 and R3 to peer with each other based on their loopback interfaces instead of their physical interfaces that connects them to each other ?

Thank you
bgp
Example :

R1#sh run | sec bgp
router bgp 1
 bgp log-neighbor-changes
 redistribute connected
 neighbor 3.3.3.3 remote-as 2
 neighbor 3.3.3.3 update-source Loopback0
R1#

Open in new window




R3#sh run | sec bgp
router bgp 2
 bgp log-neighbor-changes
 redistribute connected
 neighbor 1.1.1.1 remote-as 1
 neighbor 1.1.1.1 update-source Loopback0
R3#

Open in new window

0

Networking

94K

Solutions

67K

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.