From: adam@address.invalid
Moe Trin wrote:
> On Mon, 02 Jul 2012, in the Usenet newsgroup alt.os.linux.mandriva, in
article
> , Adam wrote:
> Long windy derivation of how network masks work. Masks are used to
> determine if an address belongs in a group or not - if all bits in the
> mask positions match, then the address is in the group.
I'm getting confused here, but fortunately it's not something I'll have
to deal with much. So if netmask AND address (logical binary AND)
equals the address, then it's in the group, but if netmask | address !=
address then that address isn't in the group. 255.255.255.192/26 (my
netmask) | 192.168.1.23 (eris, valid address) = 192.168.1.0 , but
255.255.255.192/26 AND 192.168.1.73 (outside my LAN) = 192.168.1.64.
No, that isn't right either.
I decided to set the bottom 8 bits of my netmask to 192 (only bits 6 and
7 set), so any value without either of those bits set (0..63) would be
allowed, although the first and last values in that range are reserved.
> What is the mask for
> 64.110.28.0 - 64.110.50.255 (use your 'whois' client and be amazed).
Let's see... it's clearly 255.255.something.255. In hex 28 and 50 are
x1C and x32, or binary 0001 1100 and 0011 0010. Logical OR would be
0011 1110 (x3e) so so the left seven bits of that would be ones and so I
/think/ it would be 255.255.62.255/23. That probably isn't right.
Interesting IP though... I'd better make sure not to harass them. :-)
>> and ssh or similar
>> (for transferring files between the two computers, or logging in
>> remotely when necessary). What program would you (or anyone) suggest
>> for that last task?
>
> IN THEORY, you could use the classic unencrypted stuff like telnet and
> ftp because your wireless link is encrypted. This would be the same as
> if you were on a wired-only network where you controlled all physical
> access. In practice, ssh, and sftp.
Okay then, I'll attempt to use ssh and sftp. If I'm playing at being a
LAN administrator I might as well learn how to do it right. So far I've
been using Sneakernet.
["wrong" package architecture]
> For Debian
> packages, you may find something like FOO_0.4.5-1_i386.deb, and
> FOO_0.4.5-1_amd64.deb.
The AMD64 DVD1 has, for example, tar_1.23-3_amd64.deb and
tasksel-data_2.88_all.deb while i386 has tar_1.23-3_i386.deb and
tasksel-data_2.88_all.deb. I picked Debian for these examples because
it's a major distro, and it calls its 64-bit version "AMD64". More than
half the 64-bit distros I've downloaded call theirs "x86-64" or just
"-64" or something like that.
[kitty news]
>> For TEN YEARS Louise shared the house with Allegra but never really
>> got along, which was entirely Louise's own fault.
>
> The war was/is between Smokie and Good Sam.
Louise never actually attacked Allegra -- I think she was afraid to.
She'd occasionally hiss at her or swat out at the air toward her, but
always from a safe distance. In fact, Louise didn't like any other cat,
with the exception of one "gentleman caller".
> Marg [...] Seems to be adapting OK otherwise
At the shelter, was she in a cage or a free-range room? When I was an
SPCA volunteer, the cats in the free-range room managed to work things
out among themselves.
[medical news]
>> Occasionally the tx center has called later that same day
>> with a minor dosage change, so they /are/ looking at the results.
>
> Well, obviously you're headed in the right direction. Good work!
Thanks! I suppose my medication compliance is certainly part of it,
helped by their patient education while I was there. The nurses made
sure I understood /why/ I was taking each medication. I ask lots of
questions, "Doctor, would I be able to take less of this? Do I really
need that one?" but go along with whatever they say. Of course all that
assumes trust that the doctor knows what he/she is doing.
[Dad's pacemaker]
>> Actually, they /can/ check it, and from home too most of the time,
>> using (I gather) some skin sensors and a sort of acoustic-coupled
>> modem.
>
> I hope this isn't automagically done over the interweb
I /think/ it's done over POTS with an acoustic-coupled modem at a
prearranged time. All wired and only one-way data transfer AFAIK.
> One has to wonder about the accuracy of the "battery life remaining"
> tests.
It /might/ be more of a remote EKG, with a certain pattern indicating
the pacemaker's battery is failing.
>> My father's replacement was expected later this year, but after tests
>> in early June, it was determined that it should be done ASAP.
>
> It's still a life-threatening emergency, but shouldn't be instantly fatal.
By "ASAP" I didn't mean that same day, but the very next time that
doctor would be doing procedures. They managed to squeeze him into a
full schedule for about a week and a half later.
When his pacemaker was initially put in, it was a lot closer to ASAP.
His cardiologist noticed a pulse of about 30 and told my father to go
straight up the hill to the hospital -- do NOT attempt to drive home.
>> My mother's often forgetting the correct words (although she's aware
>> of that), among other things. It's sad and painful watching her
>> gradually go downhill, knowing it's for good.
>
> and at this point, there's no cure, treatment or reliable preventative.
> Yup. My mother was living at my sister's house, but me living on the
> other side of the continent meant she was a bit hazy about us. Last
> time we saw her, we had to be introduced - and that's hard on all.
I suppose it'll come to that eventually. Even now, visiting is harder
for me.
In other news, today's mail brought the 20th edition of Mueller's book,
plus a cheap home/car charger and knockoff li-ion batteries for the
better of my two "new" digicams. (The other uses ordinary AA
batteries.) That should keep me busy for a while. I'm used to maxing
out the RAM soon after I buy a new computer, and I have to remind myself
that there's no rush on that with this one.
Adam
--
Registered Linux User #536473
--- SoupGate-Win32 v1.05
* Origin: you cannot sedate... all the things you hate (1:229/2)
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