Questions tagged [protocol]

A communication protocol is a system of digital rules for data exchange within or between computers.

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How to know which "version" of USB a device is attached as

What the title says. Is there a way to know if a USB device is registered as oldschool/original USB, USB2, or USB3 etc? I'd guess either from virtual files under /sys or maybe dmesg/kernel logs?
dolt's user avatar
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How to enable protocol without GUI in tshark?

tshark -G heuristic-decodes | grep dvb ----output----- udp dvb-s2_modeadapt F how to turn it True with command line or config ? OS:ubuntu 22.04 thx all.
Karl Jhan's user avatar
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1 answer
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What is the behavior of a UFW rule that does not specify a protocol?

This is such a basic question I was surprised I couldn't find the answer, but here we are. With the following rule: 22 ALLOW 192.168.1.0/24 Are all protocols allowed or is TCP assumed?
Powerkey's user avatar
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pulseaudio Denied access to client with invalid authentication data

keep getting repeating pulseaudio message in syslog! Mar 2 18:43:14 itc2 pulseaudio.pulseaudio[27388]: W: [pulseaudio] protocol-native.c: Denied access to client with invalid authentication data. Mar ...
fatdragon's user avatar
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1 answer
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protoc command show Missing input file

I installed protobuf using following command. sudo apt-get install protobuf-compiler When I hit the protoc --version it show version as libprotoc 3.0.0 But when I try to hit the protoc in ...
Codebuilder4f's user avatar
3 votes
2 answers
1k views

HP OfficeJet 4650 "scan to computer"

I am new to Ubuntu. Version 18.04. I have a low-cost consumer AIO printer HP OfficeJet 4650 series. The scanner provides a function to scan to computer. You put the paper in the scanner and touch the ...
Fredo's user avatar
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1 answer
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Login screen changed

I've a problem with my laptop in brightness after installation of NVIDIA card. I followed this Link and when i restart laptop and login again it worked only with way-land and when i tried to use any ...
sam's user avatar
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3 votes
1 answer
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18.04: Add a script as an option for "Default Mail Handler"

I have a script that I have written that I would like to use whenever I click on a mailto: link. Which means I need to select it as the default Mail handler in my default applications. But how do I ...
David Ljung Madison Stellar's user avatar
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Dolphin MTP protocol keeps dying when opening Android

I tried to open my android phone in Kubuntu and the dolphin file manager keeps saying the mtp protocol died undexpectedly. This has previously worked fine when I used PCMANFM. However, last time I ...
cybervigilante's user avatar
-1 votes
1 answer
966 views

How to redirect www subdomain to https protocol? [closed]

I have a website that I can access with a number of different URLs entered into the web browser. All these cases works as well (will be loaded through https protcol): lamtakam.com https://lamtakam....
Martin AJ's user avatar
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How to download with wget or curl?

With simple wget -c or curl -O no download (timeout!), but I see as a normal page in my browser, http://www.planalto.gov.br/CCivil_03/leis/2002/L10406compilada.htm so, how to download it by basic ...
Peter Krauss's user avatar
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Ubuntu 16.04 missing Network Printer options

I have a device on which Ubuntu 16.04 is running. When I want to add a new printer, I go to Printers --> Select Device --> Network Printer and choose the network printer I want. However, while I am ...
ktbraak's user avatar
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3 votes
1 answer
3k views

HTTP 2 not working in Ubuntu 16.04 with Apache2: How can I debug this?

System Information: Ubuntu 16.04 Apache 2.4.29 PHP 7.0.22 (CLI) In order to enable Apache 2 I have followed the followed the steps within this tutorial: https://http2.pro/doc/Apache. ...
Blackbam's user avatar
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3 answers
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how to register zotero:// protocol on ubuntu 16.04

PROBLEM: My workflow involves consulting notes stored in Zotero 5.0.22 while writing in other software (Scrivener, LibreOffice Writer). On Windows 10, I am able to access these notes from those other ...
Osaze's user avatar
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2 answers
2k views

How to force ICMP to run through TOR?

As far as I know, ping send ICMP echo request to host. And ICMP is the layer 3 of OSI model. But TOR use TCP , which is the layer 4 of OSI model. So ping can't be run through TOR normally. But here ...
Ali Razmdideh's user avatar
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1 answer
68 views

How to give credit to others' work

I am totally new to Ubuntu, but might start to fiddle around with open source software and make some modifications at some point in the next few months. If I were to do that, what protocol would I ...
A. Simmonds's user avatar
8 votes
1 answer
68k views

Checking SMB Version

Is there a command like Get-SmbConnection in Windows to check what version of smb protocol I'm currently using on my share points?
Dante's user avatar
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1 vote
1 answer
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How to install mosquitto

What are the steps to getting and installing mosquitto in ubuntu. Although I have read a lot about MQTT, I am very new to this thing, so please provide detailed information.
Lokesh Kumar Pal's user avatar
1 vote
2 answers
3k views

how to set a node to sleep in ns2

I just want to set a node to sleep in "ns-2" and i have searched in protocols and i found a lot of objects and functions about sleep but i couldn't use them in other protocols to set a node to sleep. ...
Jenova's user avatar
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3 votes
0 answers
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Changing protocol handler in google chrome, opening a Telegram link

I installed Telegram Desktop for Linux 64-bit. To join a Telegram channel, when a channel URL is opened in google chrome (e.g. telegram.me/channel_name) the browser prompts and asks which application ...
DummyBeginner's user avatar
13 votes
5 answers
76k views

How to force SMB2 protocol in samba?

For security reasons, I'd like to disable the SMB1 protocol in samba. Is it possible? I'm running Ubuntu 14.04 LTS.
Avio's user avatar
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Networking Transmission Details

Is there some way in Ubuntu(commands or tools) to find Network Connection data packet's detail at Physical layer or Upper layers(Data, Network, Transport) up-to bit level. I want to analysis the whole ...
hunch's user avatar
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9 votes
4 answers
60k views

How can I install protobuf in ubuntu 12.04?

I want to make one project on java using netty and protobuf for the communication between client and server. Please guide me how could I install protobuf on ubuntu 12.04?
Nirav Shah's user avatar
1 vote
1 answer
584 views

Installation of ns-allinone2.34 in ubuntu 10.04

I need to install ns-allinone 2.34 in order to implement leach protocol. I followed all the steps of installation when I write ./install in the terminal I got this result: Warning: tclStubInit.c may ...
sonatasin's user avatar
2 votes
0 answers
125 views

Empathy protocol icons

I'm surprised that Empathy can't display the protocol icons. Even in the latest Ubuntu 12.10. I'd like to know why if someone can tell me.
lokutus25's user avatar
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5 votes
1 answer
11k views

Using a custom protocol handler in Firefox to run a shell script?

What I'd like to do is be able to start external programs from links in a local website. I've defined a custom protocol handler in firefox by setting the following variables in about:config network....
user1092284's user avatar
5 votes
2 answers
11k views

How can I join a Skype Public chat via links?

In Windows, I can join a Skype Public chat by pasting a Skype chat link into a web browser's address bar (or clicking a link which contains that URI), but it doesn't work in my Ubuntu 10.04 using ...
Peter.O's user avatar
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1 answer
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Pianobar - error protocol incompatible

This error pops up when I try to run "pianobar" from my Ubuntu 11.10 terminal (i) Login... Error: Protocol incompatible. Please upgrade libpiano. I have upgraded libpiano but it still doesn't work. ...
dearN's user avatar
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5 votes
2 answers
2k views

file:// protocol connected with wrong program

I have the problem that when I open some programs/documents in Gnome, the wrong application is launched to open these. I think I already narrowed the problem, that everything that is called with file:...
Dag's user avatar
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1 vote
1 answer
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Can't download web photo albums to Picasa

Someone has shared a Picasa web album (Limited, anyone with the link), but I can't download it to Picasa. The following alert appears: Firefox doesn't know how to open this address, because the ...
Mike Moe's user avatar
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2 votes
1 answer
613 views

txmt URL Handler for Chromium does not work

I used the instructions in the answer to this question but it won't open when I click those links in my browser. I can go to terminal, and type xdg-open and then paste the txmt link, and it will work, ...
jakeonrails's user avatar
8 votes
1 answer
4k views

What protocol does Empathy's "People Nearby" use, and what other chat programs use it?

What is the name of this protocol? Can I interact with people using other chat programs, like Pidgin on linux or Adium on OS X? Which programs recognize it, and which don't?
Matthew's user avatar
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