05-10-2019
No.
Clients do not "listen" on port 80 or 443, servers listen on them.
In general, client processes are not "listeners".
I would love to take all my time teaching you client server operations; but it is really better for you to learn about this yourself.
You cannot learn about this in 10 minutes. You need to read some books or watch 3 or 4 YT videos, or both.
I spend my time developing code. However, there may be others here at unix.com who have time to teach you client-server communications.
Sorry, I just do not have the time right now. However, I can answer one question a day if you want to ask me (maybe two at the most); but you could probably learn faster watching some YT videos.
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LEARN ABOUT DEBIAN
yum-shell
yum(8) yum(8)
NAME
yum - Yellowdog Updater Modified shell
SYNOPSIS
yum shell [filename]
DESCRIPTION
yum includes an interactive shell for conducting multiple commands or sets of commands during a single execution of yum. These commands can
be issued manually or passed to yum from a file. The commands are much the same as the normal yum command line options. See here yum(8) for
that information. There are a few additional commands documented below.
config
[argument] [value]
args: debuglevel, errorlevel, obsoletes, gpgcheck, assumeyes, exclude
If no value is given it prints the current value.
If value is given it sets that value.
repo
[argument] [option]
list: lists repositories and their status
enable: enable repositories. option = repository id
disable: disable repositories. option = repository id
transaction
[argument]
list: lists the contents of the transaction
reset: reset (zero-out) the transaction
solve: run the dependency solver on the transaction
run: run the transaction
Examples
The following are examples of using the yum shell.
list available packagename*
groupinfo 'Some Group'
install foo
remove bar
update baz
run
That will list available packages matching the glob 'packagename*'. It will return information on the group 'Some Group' It will
then queue the following commands into the transaction: install foo, remove bar, update baz. Then the 'run' command will resolve
dependencies for the transaction commands and run the transaction.
SEE ALSO
yum (8)
http://yum.baseurl.org/
AUTHORS
See the Authors file included with this program.
BUGS
There of course aren't any bugs, but if you find any, they should be sent to the mailing list: yum@lists.baseurl.org or filed in bugzilla.
Seth Vidal yum(8)