Cyber security, infotech
Recent revelations from the maker of networking gear Juniper Networks have shaken the industry: Juniper has identified unauthorized code in ScreenOS, its operating system that powers the NetScreen line of Juniper firewalls. Then last Friday, cryptography researchers revealed that Juniper has allowed changes to its code that could enable eavesdropping on encrypted virtual private network sessions of its customers.
If you are having trouble getting your web server to work or starting services on the system, SELinux could be at fault.
Have you locked yourself out of WordPress due to some upgrade or restore mishap in combination with the lack of a valid email address to restore it to? Welcome to the Club of lucky administrators! There is a solution to this particular problem that just begs to be shouted from the rooftops: why don’t you reset your WordPress password using MySQL (or MariaDB). Let’s get right to it.
Expanding an EBS volume is not quite as easy as recreating it from a snapshot with a larger volume size. It involves a few more steps.
In order to transfer files from one server to another you can use Unix tools such as rsync with key pairs. Setting up the connection is rather easy once you know how to do it.
Public key cryptography relies on the use of a key pair that consists of a private and a public key. These two text strings can be compared against one another using a cryptographic algorithm. If the verification succeeds, access is granted.
Think of the public key as the lock on a door. It is technically available to everyone, but can only be opened with the corresponding private key.
In public key cryptography, your private key is like the master key of an apartment house in the real world: it can open all the locks on any door anywhere (for one and only private key, it is possible to generate many public keys).
Public key cryptography relies on an analogy to a lock and a key in the real world; animation by — Vala Afshar (@ValaAfshar) via Twitter
In order for the origin host (ec-instance-01) to be able to connect to the target host (ec-instance-02), you need to follow these steps:
Here is how to do this in more detail.