jbmurphy.com

  • Quick PowerShell script to “tail -f” dhcp logs

    When I am working in Linux, I like to leave a log open with “tail -f”, so I can see the results of some test I am performing.

    The other day I wanted to see when a new machine joined the network, so I could give it a static DHCP lease. Usually I connect to the DHCP server find the DHCP logs and open them in notepad. I finally wrote a quick script to “tail -f dhcp.log” in PowerShell.

     

    function JBM-AD-GetDHCPLogs {
 PARAM($ServerName="dhcpServerName")
 $FileName="DhcpSrvLog-$(get-date -format ddd).log"
 $PATH="\\$ServerName\c$\Windows\System32\dhcp\$FileName"
 Get-Content $path –Wait
 }

  • ACLs for Azure end points!!

    sweet. Have they always been there?

  • No charge for stopped VMs in azure

    Sweet

  • WWDC prediction – Retina cinema displays

    Thin as can be. I am reading an article in Wired that talks about the cubicles in start-up offices having MacBooks hooked up to monitors. Seems that apple need new high def monitors for these type offices. My thoughts.

  • Headed to MSTechEd!!

    Hopefully. Weather between here and New Orleans is rough.

  • Cisco ASA 5505 from Factory Default to Static Address and defined inside subnet

    I have been playing with an ASA 5505 lately. I wanted the ability to start fresh when I could not figure things out. I came up with the following commands to cut and paste into the console, allowing me to “Start over”.

    First I reset to factory default and set the internal subnet range

    configure factory-default 192.168.123.1 255.255.255.0

    You have to hit the space bar a couple of times, then paste in the next sections:

    boot system disk0:/asa911-k8.bin
interface Vlan2
 ip address 123.123.123.123 255.255.255.0
route outside 0.0.0.0 0.0.0.0 38.117.203.126
dhcpd dns 8.8.8.8
dhcpd address 192.168.123.5-192.168.123.132 inside
dhcpd enable inside

ssh scopy enable
ssh 192.168.123.0 255.255.255.0 inside
ssh timeout 60
ssh version 2
console timeout 0
username myusername password 3ncrypt3dp4$$w0rd encrypted privilege 15
no call-home reporting anonymous

!-- Optional - allow pings outbound
policy-map global_policy
  class inspection_default
   inspect icmp
   exit
   exit
!

    This code above sets the external IP, enabled DHCP internally, enables ssh and scope, creates a user, and allows pings through.

    I hope this might help someone.

  • Useful PowerShell Get-HotFix commands

    I can never remember these, and now that I have posted them, I don’t have to! I will add more as I need them:

    Get-HotFix | Where-Object {$_.HotFixId -eq "KB2823324"}
Get-HotFix | Sort-Object -Property InstalledOn

  • Import Picture into AD with PowerShell

    I know this is everywhere, so this is more a note for myself. How to upload pictures to AD via PowerShell:

    Import-RecipientDataProperty -Identity username -Picture -FileData ([Byte[]]$(Get-Content -Path .\username.jpeg -Encoding Byte -ReadCount 0))