comp.os.linux.networking Google Group

Re: Is there a practical way to find an open port?

chris-use...@roaima.co.uk (Chris Davies) — Wed, 22 May 2013 10:06:58 UT

Trivial. See below

That's the default setting. You can specify a port range like this:
nmap -p 0-65535 remotehost

Chris

Is there a practical way to find an open port?

noem...@home.org (root) — Tue, 21 May 2013 14:24:26 UT

In a previous thread I learned how to create a port-forward
on a remote machine so that I could ssh into that machine.

I have done what I can to ensure that even if someone
knew what port is open they would not be able to pry
into the machine.

Nevertheless, I am trying to assess how difficult it would

Re: yppasswd problem - Error while changing the NIS password

santiago.ra...@gmail.com — Thu, 16 May 2013 21:46:00 UT

Some years later..

How I get to change the user password with yppasswd for username as root;

1. Edit the /etc/yp/shadow and remove the password field of the user.
2. Save and close.
3. Run yppasswd username again.

Example:

If I were to change the password of henryk, I would do as follows;

Re: what is UUID of a network card

nospam_lx1312491906...@mail-temporaire.fr.invalid (bugmenot) — Thu, 16 May 2013 16:29:41 UT

AZ Nomad wrote on 03/07/2010 15:27 ET :
You lack the ability to communicate normally with somebody and be polite?

And you lack to ability to read, because that was not the only question the OP
asked.

Re: SCTP multi-homed retransmissions

grahn+n...@snipabacken.se (Jorgen Grahn) — Tue, 14 May 2013 07:46:14 UT

comp.protocols.tcp-ip is the right group, although I haven't seen SCTP
being discussed there recently.

Try to keep your line lengths down if you repost there.

/Jorgen

--
// Jorgen Grahn <grahn@ Oo o. . .
\X/ snipabacken.se> O o .

SCTP multi-homed retransmissions

bjerem...@gmail.com — Tue, 14 May 2013 05:05:52 UT

Firstly, if this is not the correct group, I apologize it seemed the closest match. My question involves a SCTP multi-homed scenario. It seems a colleague and I are at a little bit of disagreement.

The scenario begins with retransmitted control chunks before the association is setup. There are two multi-homed endpoints (a1, a2) -> (b1,b2). Due to a routing problem b1 is not reachable from a1, but it is from a2. Also, a1 is reachable from b1 and b2.

Re: ifalias of a network device

wkev...@gmail.com (wkevin) — Tue, 14 May 2013 03:08:02 UT

Hi,
so we have:
ip link set em1 alias myalias
this causes
cat /sys/class/net/em1/ifalias
to return
myalias

No I looked in the code in the kernel;
ifalias is a field in the net_device structure.
The documentation of this field in include/linux/netdevice.h (where it is declared) says:

Re: wpa_cli cannot connect to wpa_supplicant.

je...@example.invalid (Jerry Peters) — Thu, 09 May 2013 20:48:53 UT

I just used the default when I used cli to control the supplicant --
it worked. See if there's an option to turn off the socket interface.
The other possiblity is that you have to create the directory
/var/run/wpa_supplicant before starting wpa-supplicant. I've got
/var/run/wpa_supplicant/wlan0 as the socket, nothing else in the

Re: wpa_cli cannot connect to wpa_supplicant.

un...@invalid.ca (unruh) — Wed, 08 May 2013 21:07:47 UT

ctrl_interface=/var/run/wpa_su pplicant

but no such file or directory does exist, so wpa_supplicant is apparently not creating
it. If I create the directory and make it rwx all,
wpa_cli status
Failed to connect to wpa_supplicant - wpa_ctrl_open: Success
wpa_cli -i wlan0 status
Failed to connect to wpa_supplicant - wpa_ctrl_open: No such file or directory

Re: wpa_cli cannot connect to wpa_supplicant.

je...@example.invalid (Jerry Peters) — Wed, 08 May 2013 20:13:20 UT

wpa-cli is trying to open the control socket so it can pass commands
to wpa-supplicant.

Look in the wpa-supplicant config file to see where the control socket
is being created. -c /etc/wpa_supplicant.conf names the config file.
You're looking for ctrl_interface=

Jerry

wpa_cli cannot connect to wpa_supplicant.

un...@invalid.ca (unruh) — Wed, 08 May 2013 19:39:18 UT

When I run wpa_cli status or wpa_cli -i wlan0 status, I get an error
which says
Failed to connect to wpa_supplicant - wpa_ctrl_open: No such file or directory

wpa supplicant is running

root 1142 0.0 0.0 6064 3176 ? S May07 0:01 /usr/sbin/wpa_supplicant -c /etc/wpa_supplicant.conf -u -P /var/run/wpa_supplicant.pid -f /var/log/wpa_supplicant.log -t

Re: ifalias of a network device

boite-a-s...@plouf.fr.eu.org (Pascal Hambourg) — Wed, 08 May 2013 09:31:05 UT

Hello,

johnson...@gmail.com a �crit :

/sys/class/net/p2p1/ifalias contains an arbitrary text attribute
associated to the network interface p2p1. AFAIK, it cannot be used as an
interface name by commands such as ifconfig or ip.

p2p1:0 is a label associated to a specific IPv4 address assigned to

Re: ifalias of a network device

r...@greenend.org.uk (Richard Kettlewell) — Wed, 08 May 2013 08:58:15 UT

This sets the IFLA_IFALIAS property of em1.

This adds an additional IP address to p2p1, using an emulation of an
obsolete ‘alias interface’ feature.

Completely different meaning of “alias”.

I don’t believe so.

--
[link]

ifalias of a network device

johnson...@gmail.com — Wed, 08 May 2013 08:45:27 UT

Hello,

I tried:
ip link set em1 alias myalias
and
cat /sys/class/net/em1/ifalias
gives:
myalias

I also tried:
ifconfig p2p1:0 1.2.3.4
but:
cat /sys/class/net/p2p1/ifalias
gives nothing.

what is the difference between the two ?
is there a way that I will set an alias with
ifconfig so I will see it in /sys/class/net/em1/ifalias?

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divulgador1frpromoto...@gmail.com (Magno braz) — Sat, 04 May 2013 02:05:05 UT

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