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Introduction to Linux - A Hands on Guide
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Previously I wrote about configuring interfaces with static IPs based on matching them with what actual network (subnet) the interface is connected to. Now I'm thinking about it in even more different terms. But this concept will need some changes in the kernel itself.
To start with, the kernel already (by default) will "leak" an IP address to other interfaces. Specifically, if an ARP query comes in on one interface for an IP address only configured on another interface,...
Browsers these days are still trying to re-fetch data when I press the infamous "back button". I think this was always a dumb idea.
No doubt that is the cause for many cases of web site double ordering. Someone backs up so they can print out the results of a previous page where they committed their order, and it causes the data to POST again, which places another order. Now days, for POST, you get a pop-up that says the browser needs to re-post the data.
Traditionally, static configurations of IP addresses were made based on the interface names, which were always constant. When the kernel started doing device probes in a way that interface names would vary from time to time even on the exact same set of NICs, then we needed udev to keep things orderly. Turns out even udev can be fool when you change NICs, or when moving system hard drives to a new machine. New MAC addresses mean the old interface names are unavailable. So network configurations...
I wish Linux had a loopback (stored in a file) or virtual (stored in RAM) disk block device which supported partitions. I know some of you will be jumping the reply button to tell me about the offset option for loopback. Well, no, that isn't it. I want such a device for the purpose of running bootloader installs on. That requires the bootloader to be able to access both the whole device and the partition(s) on what are whole/part related device inodes.
One of the things businesses do not like to do is so many upgrades of software versions. Once they get things stable with a combination of versions that work together, they like to leave it that way. Usually, most major distributions work well because those distributions try to make it work that way. Then the only reasonable upgrade for a business seeking stability is to upgrade to the distribution's next version.
But even then, such an upgrade of a distribution takes staff time,...