Middleware

  #!/bin/bash # Set the proxy server details PROXY_HOST="proxy.example.com" PROXY_PORT="8080" PROXY_USER="proxy_username" PROXY_PASS="proxy_password" # Set the URL of the site to retrieve the certificate for SITE_URL="www.example.com" # Set the path to the output file for the certificate CERT_FILE="example.com.crt" # Set the OpenSSL configuration file for the proxy PROXY_CONFIG=$(cat << EOF [proxy] http_proxy = http://$PROXY_USER:$PROXY_PASS@$PROXY_HOST:$PROXY_PORT https_proxy = https://$PROXY_USER:$PROXY_PASS@$PROXY_HOST:$PROXY_PORT EOF ) # Create a temporary OpenSSL configuration file for the proxy echo "$PROXY_CONFIG" > proxy.conf # Use the OpenSSL command to retrieve the certificate for the site through the proxy openssl s_client -connect $SITE_URL -servername $SITE_URL -proxy $PROXY_HOST:$PROXY_PORT -proxy_type http -showcerts </dev/null | sed -ne '/-BEGIN CERTIFICATE-/,/-END CERTIFICATE-/p' ...

  #!/bin/bash # Set the path to the Java installation directory JAVA_HOME="/opt/java" # Set the password for the keystore KEYSTORE_PASS="keystore_password" # List all aliases in the keystore ALIASES=$(keytool -list -v -keystore $JAVA_HOME/jre/lib/security/cacerts -storepass $KEYSTORE_PASS | grep "Alias name:" | awk '{print $3}') # Loop through the aliases and get the expiration date for each certificate for ALIAS in $ALIASES; do     # Get the expiration date in human-readable format     EXP_DATE=$(keytool -list -v -alias $ALIAS -keystore $JAVA_HOME/jre/lib/security/cacerts -storepass $KEYSTORE_PASS | grep "Valid from" | awk '{print $3 " " $4 " " $7 " " $6}')     # Print the alias name and expiration date     echo "Alias Name: $ALIAS"     echo "Expiration Date: $EXP_DATE"     echo "" done Replace "/path/to/java" with the path to your Java installation directory, ...

  #!/bin/bash # Define variables KDB_PATH="/tmp/kdb.kdb" KDB_PASSWORD="password" CER_PATH="/tmp/cert.cer" # Prompt for certificate details printf "Enter the certificate label: "  read CERT_LABEL printf "Enter the certificate subject (e.g. /C=US/ST=California/L=San Francisco/O=Your Organization/CN=Your Domain): "  read CERT_SUBJECT printf "Enter the certificate expiration (in days): "  read CERT_EXPIRATION # Create a new kdb file ./gsk8capicmd_64 -keydb -create -db $KDB_PATH -pw $KDB_PASSWORD -stash # Generate a self-signed certificate ./gsk8capicmd_64 -cert -create -db $KDB_PATH -pw $KDB_PASSWORD -label $CERT_LABEL -dn "$CERT_SUBJECT" -size 2048 -expire $CERT_EXPIRATION # Extract the .cer file ./gsk8capicmd_64 -cert -extract -db $KDB_PATH -pw $KDB_PASSWORD -label $CERT_LABEL -target $CER_PATH

 #!/bin/bash # Set variables CA_SERVER="ca.example.com" CA_PORT="443" CA_USERNAME="username" CA_PASSWORD="password" CSR_FILE="mydomain.csr" CERT_FILE="mydomain.crt" KEY_FILE="mydomain.key" # Prompt user for certificate details printf "Enter the common name (e.g. example.com): " read COMMON_NAME printf "Enter the two-letter country code (e.g. US): " read COUNTRY printf "Enter the state or province name: " read STATE printf "Enter the locality or city name: " read LOCALITY printf "Enter the organization name: " read ORGANIZATION printf "Enter the organizational unit name: " read ORG_UNIT # Generate private key openssl genrsa -out "$KEY_FILE" 2048 # Create CSR openssl req -new -key "$KEY_FILE" -out "$CSR_FILE" -subj "/C=$COUNTRY/ST=$STATE/L=$LOCALITY/O=$ORGANIZATION/OU=$ORG_UNIT/CN=$COMMON_NAME" echo "CSR generated a...

  the script to search for errors in the logs of all the JVMs. Here's an example of how you can modify the script: #!/bin/bash # Set the path to the logs directory LOGS_DIR="/logs/servers" # Set the email address to send notifications to EMAIL_ADDRESS="user@example.com" # Search the logs directory for SystemOut.log files and check for errors for log_file in $(find $LOGS_DIR -name "SystemOut.log"); do   # Search the log file for errors   ERRORS=$(grep -E "(ERROR|FATAL)" $log_file)   # If errors are found, send an email notification   if [ -n "$ERRORS" ]; then     echo "$ERRORS" | mail -s "Error found in WebSphere SystemOut.log for $log_file" $EMAIL_ADDRESS   fi done Save the above script to a file, for example, check_websphere_logs.sh and make it executable using the chmod command: chmod +x check_websphere_logs.sh To run the script, simply execute it from the command line: ./check_websphere_logs.sh The script will...

 top: This command shows you the processes that are currently running on your system, along with their resource usage, such as CPU and memory usage. ps: This command is used to display information about the active processes on your system, including their process ID (PID), status, and resource usage. netstat: This command is used to display information about active network connections and open ports on your system. df: This command displays the amount of free and used disk space on your system's file systems. grep: This command is used to search for a specific pattern or text string in a file or output. tail: This command is used to display the last few lines of a file or output. less: This command allows you to view and scroll through the contents of a file, similar to the "more" command, but with more advanced features. find: This command is used to search for files or directories on your system based on various criteria, such as name, size, or modification date. chmod:...