(Get-DnsServerResourceRecord -Computername dc1.myold.school.edu -ZoneName "myold.school.edu" -Name "SteelyDan").RecordData

DNS, list forward lookup zones

$zones = Get-DnsServerZone -ComputerName DC1
$zones | ? {$_.ZoneName -like "*.edu"} | select ZoneName, ZoneType | sort ZoneName

DNS, list zone transfers for forward lookup zones

This gets lists for all DCs in the domain you’re in because DCs’ zone transfers are not necessarily the same for all the Forward Lookup Zones

# get all domain servers
$DomainName = (Get-ADDomain).DNSRoot
$DCList = Get-ADDomainController -Filter * -Server $DomainName | sort HostName
$i=0; $domainCount = $DCList.Count
 
$result = @()
foreach $DC in $DCList) {
    $i++; $domainServerPercentTxt = ($i/$domainCount).ToString("P")
    Write-Host "domain $i of $($domainCount) ($domainServerPercentTxt): $($DC.HostName)" -ForegroundColor Cyan
    $zonesThisDC = Get-DnsServerZone -ComputerName $DC.HostName
    # only look at forward zones and no stubs
    $forwardZonesNotStub = $zonesThisDC | ? {$_.IsReverseLookupZone -eq $false -and $_.ZoneType -ne "Stub"}
    $j = 0; $zoneCount = $forwardZonesNotStub.Count
    foreach ($zone in $forwardZonesNotStub) {
        $j++; $zonePercentTxt = ($j/$zoneCount).ToString("P")
        Write-Host " domain # $i, zone $j of $($zoneCount) ($zonePercentTxt): $($zone.ZoneName)" -ForegroundColor Magenta
        $NotifyServersList = $zone.NotifyServers -join(", ")
        $SecondaryServerList = $zone.SecondaryServers -join(", ")
        $result += New-Object -TypeName PSObject -Property @{
            "DomainName" = $DC.HostName
            "ZoneName" = $zone.ZoneName
            "ZoneType" = $zone.ZoneType
            "Notify" = $zone.Notify
            "NotifyServersList" = $NotifyServersList
            "NotifyServers" = $zone.NotifyServers
            "SecureSecondaries" = $zone.SecureSecondaries
            "SecondaryServerList" = $SecondaryServerList
        }
    }
}

# display results
$result = $result | select DomainName, ZoneName, ZoneType, Notify, NotifyServersList, SecureSecondaries, SecondaryServerList
$result | ogv

DNS, reverse DNS entries for range of IPs

this gets range from 192.168.116.0 through 192.168.117.254

$IPFirstATwoOctets = "191.168"
$result = @()
$3rdOctetBegin = 116
$3rdOctetEnd = 117
$3rdOctetCount = $3rdOctetEnd - $3rdOctetBegin + 1
$4thOctetCount = 254
$k=0
for ($i=$3rdOctetBegin; $i -le $3rdOctetEnd; $i++) {
    $k++ # count our 3rd octed, starting with 1 - even though we might start at some higher number up to 254
    $percent3rdOctetTxt = ($k/$3rdOctetCount).ToString("P0") # no decimal
    for ($j=1; $j -le 254 ;$j++) {
        $percent4thOctetTxt = ($j/$4thOctetCount).ToString("P1") # 1 decimal
        $IP = "$IPFirstATwoOctets.$i.$j"
        $IPPadZeroes = ($IP.Split(".") | % {$_.PadLeft(3,"0")}) -join "." # to sort
        $messagePrefix = "$k of $($3rdOctetCount) 3rd octet ($percent3rdOctetTxt), $j of $($4thOctetCount) ($percent4thOctetTxt) 4th octet:"
        try {
            $NameHost = (Resolve-DnsName $IP -ErrorAction Stop).NameHost
            Write-Color -Text $messagePrefix, "$IP ", "found!" -Color Gray, Cyan, Green
            $result += New-Object -TypeName PSObject -Property @{
                "IP" = $IP
                "IPPadZeroes" = $IPPadZeroes
                "NameHost" = $NameHost
            }
        } catch {
            Write-Color -Text $messagePrefix, "$IP ", "not found!" -Color Gray, Blue, Red -BackGroundColor Black, Black, DarkYellow
            $NameHost = "missing"
            $result += New-Object -TypeName PSObject -Property @{
                "IP" = $IP
                "IPPadZeroes" = $IPPadZeroes
                "NameHost" = "missing"
            }
        }
    }
}
$result = $result | select IP, IPPadZeroes, NameHost | sort IPPadZeroes
$result | ogv

–E–

–F–

firewall ports - see ports, firewall, see connect to a server on a port, test

firewall, configure for domains and trusts

are ports 53, 135, 445 & 3268 enabled?

Get-NetFirewallPortFilter -PolicyStore ActiveStore `
    | ? {($_.LocalPort -eq "53") -or ($_.LocalPort -eq "135") -or ($_.LocalPort -eq "389") -or ($_.LocalPort -eq "445") -or ($_.LocalPort -eq "3268 ")} `
    | Sort-Object LocalPort, Protocol | Format-Table -Property *

or more simply:

Get-NetFirewallPortFilter -PolicyStore ActiveStore `
    | ? {($_.LocalPort -eq "53") -or ($_.LocalPort -eq "135") -or ($_.LocalPort -eq "389") -or ($_.LocalPort -eq "445") -or ($_.LocalPort -eq "3268")} `
    | Sort-Object LocalPort, Protocol | Format-Table Protocol, LocalPort, InstanceID

But not sure this is the right approach. This seems more centered on services rather than ports...

–G–

–H–

–I–

IP Address of the PC/Server from where you run command

# internal
Get-NetIPAddress | select IPAddress, InterfaceAlias, AddressFamily | ? {$_.AddressFamily -eq "IPv4" -and $_.InterfaceAlias -notlike "Loopback*"} | ft -a
# external - often need to include "-UseBasicParsing" parameter if "Internet Explorer's first-launch configuration is not complete" or you'll get an error
(Invoke-WebRequest -uri "http://ifconfig.me/ip" -UseBasicParsing).Content
# external with latitude/longitude, city, state, zip info
Invoke-RestMethod -Uri ("http://ipinfo.io/"+(Invoke-WebRequest -uri "http://ifconfig.me/ip" -UseBasicParsing).Content)

This might give error:

Invoke-WebRequest : The response content cannot be parsed because the Internet Explorer engine is not available, or Internet Explorer's first-launch configuration is not complete. Specify the UseBasicParsing parameter and try again.

IP address, assign to DNS name – see DNS, assign name to IP address

IP addresses, reserved

IP, find for DNS entry – see DNS, resolve name to IP address, reverse IP lookup

IP of computer, find name for

Get-ADComputer -property * -filter {ipv4address -eq "123.45.67.89"} | select CN, SamAccountName, CanonicalName, DNSHostName, ObjectGUID

IP, external, yours

(Invoke-WebRequest ifconfig.me/ip).Content.Trim()

IP, reverse lookup – see reverse IP lookup

IPs for servers, list – see server IPs, list

–J–

–K–

–L–

LDAP server, find

nslookup -type=SRV _ldap._tcp.elephant.com

usually just lists domain controllers

–M–

MAC addresses associated with DHCP addresses - see DHCP addresses/MAC addresses

–N–

network connectivity for PCs – see connectivity to a bunch of PCs in an OU, test

–O–

–P–

port, connect to a server over, can I? – see connect to a server on a port, test

ports, established (used)

Get-NetTCPConnection -State Established

seems to sort descending by LocalPort

ports, firewall

Get-NetFirewallPortFilter -PolicyStore ActiveStore | ? {$_.LocalPort -ne "any"} | Sort-Object LocalPort, Protocol | Format-Table -Property *

–Q–

–R–

reverse IP lookup

Resolve-DnsName 123.123.123.123

–S–

server IPs, list

also lists OU; excludes servers with no IPs

$servers | sort {[regex]::Replace( $_.IPv4Address, "\d+", {$args.Value.PadLeft(3, "0") } )} | ? {$_.IPv4Address -ne $null} | select Name, IPv4Address, @{n="OU";e={$OU = ($_.DistinguishedName.Substring($_.DistinguishedName.IndexOf(",OU=")+1).Substring(0,$_.DistinguishedName.Substring($_.DistinguishedName.IndexOf(",OU=")+1).IndexOf(",DC=")) -replace "OU=", "").Split(",");[array]::Reverse($OU);$OU -join "/"}} | ogv

–T–

test network connectivity for PCs - see connectivity to a bunch of PCs in an OU, test

–U–

–W–

–X–

–Y–

–Z–

zone transfers (DNS) – see DNS, list zone transfers for forward lookup zones