IBM Domino: Set maximum message size

How to set maximum message size to 4MB (4096KB), then use telnet to verify setting.

Check gmail limit size

telnet smtp.gmail.com 25

EHLO practice

You can replace 'practice' with any hostname.

250-SIZE 35883577 means the maximum message size is 35883577 bytes.

In reality, when creating an empty message in gmail and attach an exact 25MBytes (26214400Bytes) file, then send out. The generated message size is up to 35876118Bytes (~34.214MBytes).

Powershell: Enable Firewall Log

We sometimes need to enable Windows firewall's log to troubleshoot. Here is how.

Viber: Notes

MSSQL: Fix error 'Consistency validation for SQL Server registry keys'

While installing Microsof SQL Server 2012, I ran into the following error. "The SQL Server registry keys from a prior installation cannot be modified. To continue, see SQL Server Setup documentation about how to fix registry keys." How to fix Replace the D:\x64\FixSqlRegistryKey_x86.exe file with the original file from the ENU\SQLFULL_ENU.iso file downloading from Microsoft Download Center. This ISO file is 4.2GB. So you can click FixSqlRegistryKey_x86.exe to download this file only. After replacing that file, press Re-run to check. All rules are passed.

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