Cyber security, infotech
The untimely death of Ian Murdock, 42, on Dec. 28, 2015, has shaken the Linux community and the world of Open Source.
„Linux old timer. Debian founder. Sun alum. Salesforce ExactTarget exec.“
is how Ian Murdock described himself on his blog at ianmurdock.com.
The traditional perimeter-focused security model has outlived its active usefulness as evidenced by the never-ending array of security breaches that constantly push the envelope on our tolerance for administrative “malpractice” in IT.
From the various security breaches in the private sector that are by now too plentiful to enumerate, through the fingerprint-stained OPM disaster, to the recently leaked database of personally identifiable information on over 191 million registered voters (in other words: all of them): no vulnerability seems too obscure, no exploit too impractical, no hack too audacious for some keyboard-toting mercenary to take advantage of the collective naiveté–or is it sheer incompetence?–of those who are paid to protect and defend access to sensitive information. How in the world did these people get their jobs, how dare they draw a salary, and how can they sleep at night? And, even more importantly: are you, by any chance, one of them?
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.