Error: Invalid command ‘SSLEngine’, perhaps misspelled or defined by a module not included in the server configuration

Listing sizes in AWS S3 Buckets Getting the whole bucket size aws s3 ls s3://$BUCKETNAME/ –recursive –human-readable –summarize | tail -n2 Tail is used because otherwise all files will be printed on screen (but you may want that for some reason). Getting the size of a specific directory/file You just need to add the path…

Objective This articles describe on installing the paravirtualized drivers on a linux operating systems like centos, redhat, ubuntu Instructions 1. Insert the XenTools ISO in the DVD drive of the Linux VM2. Mount the DVD drive to /mnt using : “mount /dev/xvdd /mnt”It says , mount : block device /dev/xvdd is write-protected, mounting read-only  The…

On some occasions apache server will just fail, and become crashed, failing to restart with an error message like # tail /var/log/httpd/error_log [Sun Dec 22 10:05:27.006998 2013] [core:emerg] [pid 15001:tid 140145945569216] (28)No space left on device: AH00023: Couldn’t create the fcgid-proctbl mutex [Sun Dec 22 10:05:38.000403 2013] [core:emerg] [pid 15018:tid 140368783902656] (28)No space left on…

Send A Test Mail via Exim Command line Sending a test mail from a server with a configured exim is easy as pie. From your user shell: tell exim that we want to send a mail to an recipient and tell us about the details of the sending procedure $ exim -v receipient@foo.bar Tell exim…

Home and navigation When you first log into your server, you will be in your home directory. For the root user, this is /root/. Linux folder structure Linux uses a nested folder structure to store different files. The top-level directory is considered the root directory, and is designated by /. Folders beneath the root level…