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Questions tagged [protocols]

Tag for questions related to data transmission rule sets.

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Could I deal with physical network layer via non-root application without writing networkcard driver? [closed]

Could I get fast access to physical network layer using GAS or GCC made program running from shell? Are there possibilities to do it without own drivers creation?
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0answers
7 views

IEEE802.15.4 AACK in linux kernel

Is it possible to Auto-Acknowledge (AACK) an IEEE802.15.4 frame by implementing it (AACK) in the kernel ? This is the situation: I have a 802.15.4 transceiver (AT86RF233) in promiscuous mode and ...
0
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1answer
36 views

is there a standard seperating character for commands in SSH protocols?

In command or RPC protocols that are written with SSH as the transport medium, is there a standard seperating character that the SSH server uses to parse commands? For example, if we have a simple ...
0
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2answers
75 views

Must an application-layer protocol exist for communication between any two programs using sockets?

When any two programs, no matter how simple or complicated, communicate by internet domain sockets (or Unix domain sockets), does it necessarily imply that there is an application-layer protocol ...
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2answers
49 views

Can we specify service name and transport protocol in a URL?

A URL has its own syntax. In a URL, we can specify either hostname or IP address. Similarly, while we can specify port number, can we specify service name instead of port number ? If we can't, how ...
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1answer
73 views

What do the ntp options “restrict default nopeer” do?

NTP version installed: ntp-4.2.6p5-5 I'm trying to understand the usage and meaning of the ntp restrict along with restrict default nopeer Quoting the NTP documentation: nopeer: Deny packets ...
2
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1answer
922 views

samba protocol min max values available?

I am running Samba 3.6 in SLES 11.4. I recently added in /etc/samba/smb.conf in the [global] section the following min protocol = SMB2 max protocol = SMB2 this was done to allow communication with ...
2
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0answers
517 views

Bluetooth over serial (SPP) configuration and setup

I have an embedded board with an onboard bluetooth capability. My board runs Linux with bluetooth support provided by the BlueZ stack. I have access to all the bluez utils like hciconfig, sdptool, ...
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0answers
85 views

NFS protocol problem [duplicate]

I tried to configure a NFS server with my Red Pitaya board, with a custom Ubuntu image, exactly as this page tells me to https://www.digitalocean.com/community/tutorials/how-to-set-up-an-nfs-mount-on-...
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0answers
43 views

Standards and protocols that were first implemented on Linux/Open source [closed]

I hope that this is the right forum to ask this question, but I would like to know if there are any standards and/or protocols that started on Linux first and then spread to the other operating ...
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2answers
372 views

Is value of bInterfaceProtocol fixed or decided by Kernel?

Let's say: $ ls -l /dev/input/by-id lrwxrwxrwx 1 root root 10 Feb 10 03:47 usb-Logitech_USB_Keyboard-event-if01 -> ../event22 lrwxrwxrwx 1 root root 10 Feb 10 03:47 usb-Logitech_USB_Keyboard-event-...
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1answer
883 views

What is the relation between UART and the tty?

When I write programs for my own FPGA, I must select UART to emulate a terminal and for my FPGA design but I don't know exactly what that means. I believe that UART is a basic serial transmission ...
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1answer
109 views

Which port is used for receiving email?Is it the same port for sending email SMTP (25)? [closed]

I just noticed my ISP blocked both direction for port 25. Does that mean port 25 is for both sending or receiving email? Used to think it is for sending only.
0
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1answer
2k views

iptables - how to drop protocols [closed]

I have the desktop-server Debian Jessie machine running for testing purposes just for 19 hours now. I have already set a few rules as you can see above. But I am not really into networking. So it ...
15
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7answers
16k views

command-line tool for a single download of a torrent (like wget or curl)

I'm interested in a single command that would download the contents of a torrent (and perhaps participate as a seed following the download, until I stop it). Usually, there is a torrent-client daemon ...
2
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1answer
2k views

how to know on my linux machine if connection VIA sftp is active

I have Linux machine red-hat 5.X please advice - which what command I can identify if someone is tiring to copy files from my machine VIA sftp or ftp is it possible to verify this on my Linux machine ...
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0answers
174 views

Is legacy checkpoint endpoint blocking puppy 528 wireless Internet connection and how can I remove it?

Background: Whilst booting with an old flash drive (SafeXs by block master) plugged in to my laptop (DELL latitude 6430u) I came up against a blue login screen . At full encryption point ... ...
2
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1answer
1k views

Where do I find the OID descriptions for SNMPv2 in Linux?

I was looking at this link here: http://www.debianadmin.com/linux-snmp-oids-for-cpumemory-and-disk-statistics.html and noticed that the OIDs are the same ones I see for the same stats for our ...
25
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1answer
7k views

In what sense does SATA “talk” SCSI? How much is shared between SCSI and ATA?

This is nothing new to me at least, that SATA actually "talks" SCSI, hence why these SATA devices show up as SCSI devices in Linux. A related question has been asked before, e.g. Why do my SATA ...
2
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0answers
407 views

Chat application for monitoring with scripts

I am looking for a chat application, which would have the ability to interact with a shell script. I need this for a home project. An example of usage: A client sends a chat message to a server. It ...
8
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3answers
17k views

Why does SSH show protocol as tcp6 *and* tcp in netstat?

$ netstat -nat Active Internet connections (servers and established) Proto Recv-Q Send-Q Local Address Foreign Address State tcp 0 0 0.0.0.0:80 0.0.0.0:...
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2answers
7k views

What network protocols does a Postgres database server use?

I have a postgres 9.1 server running on the default port 5432 on an Ubuntu 12.04 cloud server. I want to open up the port, so I can make remote queries -- but I have to open the port on IP tables, ...
2
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1answer
204 views

Are application layer protocols part of library routines?

Where do application layer protocols reside? Are they part of library routines of language e.g. C, C++, Java? As goldilocks says in his answer, this is about the implementation of application layer ...
2
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1answer
3k views

How to tell what wireless protocols my network card is using?

I want to know which wireless protocol my card is currently using. I found a similar question that tells you what network protocol your card supports, but I want to confirm that my card is actually ...
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1answer
60 views

IP Prefix - how do I declare this?

Hi I have an IP Prefix issue I would like to declare the following IP's as "safe" using ip prefix "methodology" ("?") The IP's first three parts of the IP have been doctored to protect the innocent, ...
2
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1answer
1k views

How to enable NFS4 protocol

I have found nothing that could help me with enabling NSF4 protocol rpcinfo -u localhost nfs program 100003 version 2 ready and waiting program 100003 version 3 ready and waiting How can I add ...
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1answer
2k views

Why Linux syslog file does not follow the RFC3339 protocol?

Why Linux syslog file: /var/log/syslog does not follow the timestamp format defined in the protocol http://tools.ietf.org/html/rfc5424#page-11?
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1answer
320 views

Does the X windowing system suffer from scalability?

One of my professors was telling us about scalability problems, and said that the X protocol was a prime example of a not scalable protocol. Why is that? Is it because it is very hardware dependent? I ...
3
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2answers
2k views

IM program to support yahoo video calls

I have been trying to migrate to Linux from Windows during the past one year. Until I completely deleted my windows and I have been using Linux mint 15 for the last 30 days. I am really satisfied. I ...
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2answers
3k views

Why TCP TIME-WAIT State is present at both ends after a connection termination?

I am reading how the TCP states work and especially the connection termination part. All of the books or online material I read, shows that for the termination procedure these states are followed ...
4
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1answer
602 views

Using xdg-open for accessing network with normal explorer

I'm working with small network and I want to start network explorer from a terminal. When I tried to type xdg-open network:///server it opened google chrome and did nothing. I also tried to type smb://...
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3answers
8k views

mounting dropbox (for exploring the files)

I want to simply be able to explore a dropbox filesystem, without much additional load on CPU, memory, storage (i.e., without saving copies of the remote files locally). It seems that the official ...
4
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1answer
2k views

Debian Kde Iceweasel/Firefox: setting custom protocols handlers

I recently switched from Ubuntu 10.04 gnome to Debian wheezy Kde. Everything's work fine, except to the Iceweasel/firefox custom protocols! I added komodo.protocol in my ~/.kde/share/services with: ...
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2answers
740 views

I would like to send commands and requests from a client side app to a Linux server

So I am planning/designing an app running on Mac that will send commands and make data requests to a linux server. Some of the things I would need to do will be send file manipulation commands, zip ...
3
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4answers
2k views

Local area network without using the IP protocol in Linux

I've read a little about Internet protocols and deduced that on local area network, there is no need to use the IP protocol, though it's normally used. Is there a possibility to turn off the IP ...
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5answers
14k views

What is the need for rsync server in daemon mode

I don't understand the need for an rsync server in daemon mode. What are the benefits from it if I can use rsync with SSH or telnet?
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2answers
4k views

How to copy someone's else folders from public.me.com with a wget-like tool?

How can I copy a folder from http://public.me.com/ (a service related to iDisk, or MobileMe) to my local filesystem with a Unix tool (like wget, a command-line non-interactive tool)? The problem is ...