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10/22/2015

Fix my IT system: Manage Windows Network Bandwidth with native QOS

Fix my IT system: Manage Windows Network Bandwidth with native QOS: Manage Windows Network Bandwidth with native QOS




Windows 2012 QOS!




Get-NetQosPolicy
New-NetQosPolicy
-Name "FileCopy" -SMB -ThrottleRateActionBitsPerSecond 2MB






Set-NetQosPolicy
-Name "FileCopy" -ThrottleRateActionBitsPerSecond 10MB






Remove-NetQosPolicy
-Name "FileCopy"





10/20/2015

10/19/2015

Recognizing and Categorizing Symptoms of Voice Quality Problems - Cisco

Recognizing and Categorizing Symptoms of Voice Quality Problems - Cisco:

Interesting categorization with sample sound bites.


How to Do TCP Sequence Number Analysis

How to Do TCP Sequence Number Analysis

From packetbomb.com
  • TCP typically ACKs every other segment
  • Add sequence number, next sequence number, and acknowledgment number to your Wireshark columns
  • Next sequence number is sequence number plus TCP data payload length
  • ACK number tells you what data has been received and what the next received sequence number should be
  • TCP will ACK every packet when in recovery


  • Command line: Using tcpdump to find scanning activity

    Command line: Using tcpdump to find scanning activity

    Great Stuff from packetbomb.com

    10/02/2015

    Windows DNS Server: Security Settings

    Do a DNS test at:
    DNS Stuff


    You will get warnings of various kinds.  A couple of important fixes are:


    Disable Version Query

    dnscmd /config /EnableVersionQuery  0


    Disable Recursion

    dnscmd  /Config /NoRecursion 1