Windows 11 | Remote Server Administration Tools (RSAT)

A wonderful article about installing RSAT (Remove server administration tools) on Windows 11 is available at How To Install RSAT On Windows 11 PCs HTMD Blog (anoopcnair.com)

I would like reiterate something Anoop has mentioned in his article. If you are using Microsoft SCCM or Windows Update Services (WU), then you must enable the local group policy as he has mentioned clearly in his post.

The image attached by Anoop could be bit confusing for the local group policy setup, hence I am uploading one with better visibility. The path is “Computer Configuration->Administrative Templates->System” & you need to open “Specify settings for optional component installation and component repair”

No need to reboot the computer for installing RSAT components. Follow Anoop’s thread and be a happy Administrator!

Linux | File Cleaner | bash script

Recently we setup a Linux server for keeping backups & decided not to use certain switches while the backups were synched from Windows machines. This created an additional situation like maintaining the storage space based on different business requirements and using our own solutions. So the following script was developed. Please note, this script has been tested on CentOS/RHEL/OEL 7 environment & executed with root privileges.

#!/bin/bash

# Cleanup tool for Linux Samba Server
# Rajesh Thampi
# Date: Sep 2021
# Instructions
# Copy the script to a file with .sh extension
# Make it executable (eg: chmod +x filecleaner.sh)
# Execute! (eg:./filecleaner.sh 1>filecleaner.log 2>filecleaner.err
# And be careful :)


function purgeit(){
# local DIRNAME="$1"
# local FILETYPE="$2"

cd "$1"
echo "Entered Directory: ${PWD}"
#Logic
#Check whether $3 number of files matching the patterns provided by $2 are present those were created within $4 days, then delete all files older than $4 days
 
if [ $(find -maxdepth 1 -name "$2" -type f -mtime -"$4" | wc -l) -ge $3 ]; then
local OBSFILECNT=$(find -maxdepth 1 -name "$2" -type f -mtime +"$4" | wc -l)
echo "There are ${OBSFILECNT} files & will be purged"
local obsfiles=$(find -maxdepth 1 -name "$2" -type f -mtime +"$4")

#The below loop is ONLY for logging purpose
#We'll delete all files matching the pattern in a single line command using "find"

        if [ $OBSFILECNT -gt 0 ]; then
        echo "Below Files will be deleted"
        for eachfile in "$obsfiles"
                do
                echo "$eachfile"
                done
                #find and delete will eliminate the need to treat files with space and other escape characters in the filenames.
                find -maxdepth 1 -name "$2" -type f -mtime +"$4" -exec rm -rf {} \;
        fi
fi
}

#Call the function passing four variables: path, type of the files to purge, number of files to keep & age of the files
#those need to be deleted

#syntax: purgeit "/backup/server_sql" ("*.txt" OR "my*.php" OR "*" OR "*.*") 4 5
#example: purgeit "/backup/server_sql" "*.zip" 4 5
#You can call this function N number of times passing different paths and other values

Now let us see the logic in details.

Consider you have a path “/backup/server_sql” where your Microsoft SQL Server is uploading a full backup daily. As we are synching the backup files using ROBOCOPY from the Windows server without mirroring, the daily full backup files will start mounting in the Linux files server. Then we came up with a business plan to:

  • Keep minimum 4 number of most recent full backups for the SQL server in the Linux path those were created within last N number of days. If there are no files for last N days found, existing files will not deleted (gives an opportunity to investigate why there are no files uploaded to Linux file server)
  • Delete files those are 5 days or older from the Linux path after insuring minimum N number of files are within the repository.
  • Combined with a function send alert emails, this small snippet could function as both a storage maintenance and monitoring tool.

Interested about including email alerts? Let us know and will share the additional code with you exclusively.