Trainings

OK show-disks  ——> To show the disks OK probe-scsi  ——> To search the scsi devices attached to the primary scsi controller OK probe-scsi-all —> To search all the scsi devices OK devalias   —-> to list device alias names OK devalias <alias> <path> —>To temporarily create a device alias OK printenv …

App Store Optimization is a way of ensuring your app meets app store ranking criteria and rises to the top of a search results page. But how does a marketer optimize for better discover-ability in an app store? To help you boost your app marketing strategy and app store ranking, …

If your SIP server is exposed to internet. Then you need to take some measure even if you have fail2ban installed. Fail2Ban keep track of the logs while blocking the attacks and some of the attacks might occur while fail2ban start jump into it. Following are the Tools used for …

The “netstat” command is quite useful for checking connections to your machine. If we wanted to see ALL of the connections (which i really recommend you don’t do unless you’re trying to debug something and then you should probably pipe it to a file) we could use the “netstat -a” …

  https://www.isc.org/wp-content/uploads/2017/12/RPZ-webinar7.ppt.pdf Webinars and other Presentations given by ISC http://www.securityzones.net/images/downloads/Rackspace-RPZ-Case-Study.pdf https://kb.isc.org/article/AA-00525/110/%20Building-DNS-Firewalls-with-Response-Policy-Zones-RPZ.html http://www.securityzones.net/images/downloads/BIND_RPZ_Installation_Guide.pdf  

First off, Apache, nginx, or LightSpeed aside – if you’re running a server with 1000-2000 requests/second it’s time to start thinking about dual servers and load balancing. Depending on what you’re serving you can easily get more out of any of those servers, but at those rates you’re serving something important (or …

top command shows CPU usage as a percentage of a single CPU by default. That’s why you can have percentages that are >100. On a system with 4 physical or virtual cores, you can see up to 400% CPU usage. You can change this behavior by pressing I (that’s Shift + …

Sometimes as an administrator you may need to kill a service which is stuck in a ‘starting’ or ‘stopping’ state, in order to avoid having to reboot a server in the middle of the day. These are the simple steps you need to do: Find out the Service Name: To do …

Cisco Trainings and Certifications overview Cloud CCNA Cloud CCNP Cloud Collaboration CCNA Collaboration CCNP Collaboration CCIE Collaboration Cybersecurity Operations CCNA Cyber Ops Data Center CCNA Data Center CCNP Data Center CCIE Data Center Design CCENT CCDA CCDP CCDE CCAr Industrial CCNA Industrial Routing and Switching CCENT CCNA Routing and Switching …

CUCM Conference Ad Hoc Conference Unlike the Meet-Me conference, the ad hoc conference is started by an initiator and only the initiator of the conference can add people into the conference. There are two methods to use in order to initiate ad hoc conferences: Put a call on hold, dial …