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slm
4:54 AM
@hildred - can you come in here for a sec?
 
5:11 AM
@slm, yo
 
slm
@hildred - Saw you voted to reopen the Q I marked as a dup, where we at with those Q's?
making sure I have things correct
 
One is about unicode, one is about color, one is about sequence. Color is dependant on escape which is a non printing character and disallowed by spec, unicode is allowed by spec but not by openssh and the other is about printing the issue before the username prompt and has nothing to do with the other.
 
slm
let's shore up this Q then so it's more obvious about unicode: unix.stackexchange.com/questions/109038/…
Can you edit w/o changing it heavily so that it expresses the unicode element a bit more?
@hildred ^^^
 
give me a couple ...
 
slm
thanks
The correct A'er then to the color is it's not possible, by design
 
5:21 AM
correct.
edit is up if you want to proff it.
 
slm
already did, thanks for pointing this out!
looks good!
I'll get terdon to move his A'er off that Q as well.
I made a new home for them here
0
Q: What are some methods I can use to create colorful MOTD messages when logging in?

slmFrom time to time I've come across colorful ASCII art styled messages when logging into a server. How are these messages constructed?

 
cool, looks good.
 
@Braiam In the DR? I don't know how unusual that is, but it sounds bad.
Hi @slm. What's happening?
 
slm
@FaheemMitha - hey. Not too much. Been swamped w/ work
still in the process of relocating to NC area
 
@slm oh. The latest new job?
 
slm
5:31 AM
taking longer than I imagined
same job since March
 
@slm The relocation?
 
slm
moving to NC
 
@slm Ok.
 
slm
my new job is in the Raleigh area
 
Yes, moves are a pain.
@slm Where will you be living?
 
slm
5:32 AM
we have an opening
shopping for a house now
prob. end up in the apex area
 
@slm oh. Not Raleigh itself? Who is the job with, again?
 
slm
Teradata
 
@slm ok
 
slm
mainly work with OpenStack, Hadoop, HBase, etc.
 
I see.
 
slm
5:35 AM
good work, if you know anyone in the area, we have an opening for a ops position.
 
@slm ok.
 
slm
use all the latest buzz words 8-)
 
What is ops?
I used to know people there. But mostly academics. And not with the kind of skills you are talking about. Is it hard to find people in that area? Just curious.
 
slm
our group is called devops we work w/in those 2 spaces, not thrilled w/ that term since it doesn't really desc. a type of work (IMO) it's a way to work.
There's quite a bit of competition for ppl
 
@slm Ok, I see.
 
slm
5:36 AM
b/w RH, SAS, Cisco, etc.
we work w/ the devs. ~50% of the time and with sustaining + production the other 50%
 
@slm Yes, I see.
 
slm
also looking for Java devs too
 
@slm hope to see you around more often, once things settle down.
So currently you are working remotely?
 
slm
yeah that's been my goal. I loaded a bunch of Q&A that I've been working on tonight. Have a bunch of openstack related Q&A that been meaning to maybe add here
no I'm down here staying w/ family
We had several overlapping sprints and so I've been extremely busy the last few months
 
@slm You're in NC right now? How is it?
 
slm
5:40 AM
HOT
not used to 90+ weather
getting used to it
but it's still super hot to me
 
@slm I see. Yes, NC summers are warm.
 
slm
also got to see all the fuss w/ the pollen
 
But at least you have AC. Are you an outdoors type person?
 
slm
it looked like it snowed a couple of times everything was all yellow
 
@slm fuss? You mean allergies?
 
slm
5:42 AM
I like being outside, but not when it's super hot
just how it dumps yellow all over everything
 
@slm oh
@slm Ok.
 
 
10 hours later…
3:15 PM
@mikeserv thank you for answer edit. Was trying to give you the credit :-)
 
 
2 hours later…
5:03 PM
The error message looks pretty clear. Either install X11 development files or use --without-x. — jordanm 50 mins ago
@jordanm you really ought to either post that as an answer, or vote to close the question.
(/me wonders if he'll see that ping...)
 
@derobert why nobody wrote an accurate title...
this question makes no damn sense unix.stackexchange.com/questions/215729/…
 
5:32 PM
@Braiam makes sense to me and to whoever answered it.
 
@casey what is asking? Because he knows that apt upgrades packages, but apparently has no idea that to "upgrade" the OS he has to upgrade packages too
 
@Braiam if your apt sources dont't point at "stable" but instead "jessie", they won't ever upgrade to the next release when it comes out. By "OS upgrade" he means distro release upgrade.
 
 
2 hours later…
7:07 PM
@casey but he's saying like its only possible using a GUI
which as you know, its an absurdity
 
@Braiam >"I know it can be done through the graphical user interface ... but I'm interested in how OS upgrades can be performed from terminal"
I read that as he knows he can do it in both GUI and CLI, and he wants to know how to do it in the CLI
 
8:14 PM
So I have come across a rather unusual problem. I've written a TCP server application and a TCP client application. To test the server, the client sends 100k consecutive requests to the server (none of the connections are concurrent). This works fine until a magic number is reached: 28,232 requests.
After a bit of digging, I came across this:
> "The default configuration for Linux allows unprivileged ports in range 32768-61000 for a total of 28232 ports."
So that explains the problem. But I'm not sure what the solution is. Is the Linux kernel failing to reuse ports that have been closed?
Any advice or assistance would be greatly appreciated.
Oh, and 'netstat -antu' reports that all of the "open" sockets are in TIME_WAIT.
According to the manpage:
> "TIME_WAIT: The socket is waiting after close to handle packets still in the network."
 
@NathanOsman The kernel has to keep packets in TIME_WAIT state because it might receive extra packets on the connection. It's a feature of TCP.
Continue reading the man page...
The magic word is SO_REUSEADDR
and the man page you want to read is socket(7), but it doesn't explain much
Google SO_REUSEADDR should do a better job
 
Ah, okay. So there isn't really much I can do without reuse then.
 
222
Q: Socket options SO_REUSEADDR and SO_REUSEPORT, how do they differ? Do they mean the same across all major operating systems?

MeckiThe man pages and programmer documentations for the socket options SO_REUSEADDR and SO_REUSEPORT are different for different operating systems and often highly confusing. Some operating systems don't even have the option SO_REUSEPORT. The WEB is full of contradicting information regarding this su...

 
Thanks for the explanation. I knew someone here would be able to explain what I was missing and point me in the right direction.
 
that's an excellent answer
 

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