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InstallDate | InstallDate | ||
20190402093338.000000+060 | 20190402093338.000000+060 | ||
</pre> | |||
===Watch port availability=== | |||
<pre>cls;while($true){get-date;$t = New-Object Net.Sockets.TcpClient;try {$t.connect("10.10.10.10",3389);write-host "RDP is up"}catch{write-Host "RDP is down"}finally{$t.close();sleep 30}}</pre> | |||
Example output: | |||
<pre style="color: white; background: #012456; width: 800px"> | |||
Thursday, August 29, 2019 11:27:17 AM | |||
RDP is down | |||
Thursday, August 29, 2019 11:28:08 AM | |||
RDP is down | |||
Thursday, August 29, 2019 11:28:59 AM | |||
RDP is down | |||
Thursday, August 29, 2019 11:29:50 AM | |||
RDP is UP | |||
</pre> | </pre> | ||
Revision as of 10:30, 29 August 2019
Powershell
Useful Commands
Show command history
get-history | more
Test if port open from one server to another
Test-NetConnection 10.10.10.10 -port 445
Example output:
ComputerName : 10.10.10.10 RemoteAddress : 10.10.10.10 RemotePort : 445 InterfaceAlias : Ethernet SourceAddress : 10.10.10.20 PingSucceeded : True PingReplyDetails (RTT) : 29 ms TcpTestSucceeded : True
Check who rebooted the server
Get-EventLog –Log System –Newest 100 | Where-Object {$_.EventID –eq ‘1074’} | FT MachineName, UserName, TimeGenerated -AutoSize
Example output:
MachineName UserName TimeGenerated ----------- -------- ------------- server01.lab.local LABLOCAL\user01 28/8/2018 4:28:20 PM
Show DNS Cache
Get-DnsClientCache
When was Windows installed
wmic os get installdate
Example output:
InstallDate 20190402093338.000000+060
Watch port availability
cls;while($true){get-date;$t = New-Object Net.Sockets.TcpClient;try {$t.connect("10.10.10.10",3389);write-host "RDP is up"}catch{write-Host "RDP is down"}finally{$t.close();sleep 30}}
Example output:
Thursday, August 29, 2019 11:27:17 AM RDP is down Thursday, August 29, 2019 11:28:08 AM RDP is down Thursday, August 29, 2019 11:28:59 AM RDP is down Thursday, August 29, 2019 11:29:50 AM RDP is UP