An easy way to check certificate dates derived from the script from the

SSL Test Script Post

1 #!/bin/bash

2

3 # OpenSSL requires a port specification; default to 443.

4 SERVER="$1:443"

5 SERVER_HOST=$(echo "$SERVER" | cut -d ":" -f 1)

6 SERVER_PORT=$(echo "$SERVER" | cut -d ":" -f 2)

7 if [[ -z "$SERVER_HOST" || -z "$SERVER_PORT" ]]; then

8 echo "Usage: $0 host[:port]"

9 echo " Default Port is 443"

10 echo "Using: $(openssl version)"

11 exit

12 fi

13 SERVER="$SERVER_HOST:$SERVER_PORT"

14 SCLIENT_DUMP=$(echo "" | openssl s_client -connect "$SERVER" 2>&1)

15 echo "$SCLIENT_DUMP" | openssl x509 -noout -dates

16