IT hands-on

The chmod command helps us change the access permissions for our files.  The permissions of a file look like below: The chmod command can use the the oc

We could use the destination rule parameters to help alleviate bottlenecks and slowness caused by a rise in requests for an application. Some of the pa

When having issues connecting to an application,we could configure the " retry " parameter for the client application requests.  The  number of

Latency could create huge issues, like  bottle necks, slowing down of applications.  To keep that from happening, we can use timeouts for our requests.

To specify a loadbalancing policy for our service " service1 ", ROUND_ROBIN in our case, we use an  istio resource called destinationRule . The  d

Access logging are disabled for istio  default profile.  We could change that by instructing  i stio  to print access logs to the standard output as follow

To secure traffic to our kubernetes cluster we use TLS in conjunction with the HHTP traffic. To enable HTTPS for ingress traffic, we need to specify th

We could format a USB storage device as ext3 or  VFAT for example.  We install Syslinux on our machine - <i> Syslinux </i><i> is a bootloader for  Linux that we cou

The mLTS protocol is a mutual TLS that helps the client identify itself with the server and vice-versa. To activate mTLS for a service, we use a  Yaml t

To run programs in new namespaces , we use the " unshare " command It creates a new namespace and run the  specified process in it - default progr

An empty namespace is deleted by the system. In order to keep a namespace open, a process needs to be running inside it or it needs to have a bind mou

Below are the IP classes: <i> Class A :</i> Ranges from " 1.n.n.n " to " 126.n.n.n ". With class A we get 127 networks, each with up to sixteen

We are using for our example a class C network IP address  - 192.168.1.0 -. Because it is a class C address the first three octets - 192.168.1 - are us

Network namespace is a Linux concept that allows processes running inside different network namespaces to have their own network stack, routing tables