I have had a need to determine the default logon username on a windows machine – but I was remote So I ran an rdp session to the machine and I pulled up a command line prompt and executed reg … Continue reading →
You might get your Windows desktop full of icons that just dont look right. What has happened is your icon cache has gotten scrambled. There are many reasons why this can happen, but the best thing to do is to … Continue reading →
Start the Group Policy Management application Drill down the tree Forest: (your domain) Domains (your domains) Right click on “Default Domain Policy” and select “edit” In the Group Policy Management Editor (that hopefully just opened) drill down to Computer Configuration … Continue reading →
I was having problems with receiving emails from multiple ip addresses – but all of them being addressed from the same set of email addresses. In Zimbra this can be addressed using zimbraMtaSmtpdSenderRestrictions and setting up a file with a … Continue reading →
From a command line prompt: systeminfo | find /i “install date” … Continue reading →
for /L %%A in (15,1,254) DO ( dnscmd /recordadd 6.9.10.in-addr.arpa %%A PTR office.seei.biz ) … Continue reading →
I have found the following two sites helpful in finding issues with the configuration of SSL secured web sites https://ssltools.digicert.com/checker/ https://www.ssllabs.com/ssltest/analyze.html Test which ciphers (TLS, SSL, etc) are enabled nmap -sV –script ssl-enum-ciphers -p 443 www.yourdomain.com Ref: https://nmap.org/nsedoc/scripts/ssl-enum-ciphers.html … Continue reading →
The domain controller of a domain should be set to a reliable time source. All machines in the domain will get the current time from the domain controller. To correct this: Determine which machine is the PDC with the command: … Continue reading →