In this case it just searches for port 80 it is fairly handy if you have some sort of appliance or something else you aren't sure of the IPof Of course change the port 80 port to whatever port(s) you want. for ip in `arp -n|arp -n|tail -n +2|head -n -1 |grep -v incomplete|awk '{print $1}'`; do echo "checking $ip:80" nc -w 1 -z $ip 80 if [ "$?" == 0 ]; then echo "**Port 8........

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To first start off, there are many misconceptions about NoSQL and especially its strengths and weaknesses. Even the popular NoSQL solution MongoDB is fraught with issues that no one seems to be concerned about aside from a few but there are serious issues with database integrity and verified writes. MySQL was considered dangerous or incomplete at one point without having the transactional safety features of Oracle for example. However the NoSQLimplementations seem........

LSi Megaraid At first it was configured as a RAID 0, then I deleted the Virtual Disk Group. I thought both drives would be shown and detected in Linux as sda and sdb but it actually shows nothing. To make them work you have to hit Ctrl+R before the system boots (when prompted) and create a Virtual Disk Group. In my case I created each one as RAID 0 (with a single drive only) as I just wanted JBOD but there is no such option or default in these Dell Pe........

Have you ever found a website/page that has several or perhaps dozens, hundreds or thousands of files that you need downloaded but don't have the time to manually do it? wget's recursive function called with -r does that, but also with some quirks to be warned about. If you're doing it from a standard web based directory structure, you will notice there is still a link to .. and wget will follow that. Eg. let's say you have files in http://serverip/documen........