Operating system: Ubuntu 16.04
Printer: Canon Pixma MP560
I try to add printer in ubuntu. I used find printer but when I type in the printers IP address in host and click probe then nothing happens.
How do I get this printer to communicate with printer?
I installed this. Then when adding the printer, the printer was picked up automatically:
apt-cache search bjnp
sudo apt-get install cups-backend-bjnp
Related
I've searched around, but I cannot find an answer.
Can I use my Raspberry Pi as an NTP server (independently).
I want to synchronize 4 devices on a LAN for logging. They will be on a LAN with no WAN access... one is a Cisco Switch, one is the Pi and the other two are conversion boxes I want to log things on (they will be NTP client).
I just need them all to sysnc to 1 clock source (the Pi) is there a way to do this? All the answers I find are either to setup the Pi with a GPS module (which I can't do here) or sync it to external NTP servers for cascading the clock down (which I can't do here)... can I use NTP just to send out the Pi's system time ?
You could but best with a time source.
You would need to edit the code for a NTP server, as there isn't much cause to do this.
Best idea is to use a GPS hat on the RPi
http://www.reeve.com/Documents/Articles%20Papers/Reeve_GpsNtp-Pi.pdf
DEAR PEOPLE FROM THE FUTURE: Here's what we've figured out so far...
On your Raspberry Pi, run the following commands:
sudo apt update
sudo apt install ntp
sudo ufw allow ntp # if your firewall is enabled
sudo ufw allow 123
sudo sed --in-place --expression "\$aserver 127.127.1.0" /etc/ntp.conf
sudo systemctl start ntpd
On your Cisco switch, run the following commands:
NOTE - If you are using Cisco IOS, do not forget to force the NTP synchronization using clock read-calendar.
configure terminal
ntp server <the IPv4 address of your Raspberry Pi>
end
clock read-calendar
PS - If you want to shut everything down...
On your Raspberry Pi, run the following commands:
sudo ufw delete allow ntp
sudo ufw delete allow 123
sudo systemctl stop ntpd
sudo sed -i "/server 127.127.1.0/d" /etc/ntp.conf
On your Cisco switch, run the following commands:
configure terminal
no ntp server <the IPv4 address of your Raspberry Pi>
end
Good morning to all,
I have installed Centos 6.7 x86 64 on a Virtual Machine. It is not the first time I'm using this virtual machine...I have already installed a Windows xp 32 bit system, and a Centos 7 with graphical interfac system, and they both connected as well. This time I can't start a connection. In the virtual machine I set the parameters on "NAT" and "Connected Cable", and here I report my inux configurations:
Configure eth0
#
vi /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE="eth0"
NM_CONTROLLED="yes"
ONBOOT=yes
HWADDR=A4:BA:DB:37:F1:04
TYPE=Ethernet
BOOTPROTO=static
NAME="System eth0"
UUID=5fb06bd0-0bb0-7ffb-45f1-d6edd65f3e03
IPADDR=192.168.8.171
NETMASK=255.255.255.0
Configure Default Gateway
#
vi /etc/sysconfig/network
NETWORKING=yes
HOSTNAME=centos6
GATEWAY=192.168.8.3
Restart Network Interface
#
/etc/init.d/network restart
Configure DNS Server
#
vi /etc/resolv.conf
nameserver 8.8.8.8
"
I've copied this parameters from a website guide. Anyway, I tried also setting NM_CONTROLLED=no and ONBOOT=no, but nothing works.
Even if I try to pinging google by the command
ping www.google.it
it doesn't work.
Any suggestions?
I am running Centos 7 x86-64. I installed a guest (again Centos 7) through kickstart as an exercise. I prepared my kickstart file, I validated it and I launched with virt-install.
If something went wrong with the network configuration (During install I got no problem, I created a local repo on Host FTP server as source for the install) how can I connect to the machine?
Only SSH or virsh foresee some other connection method?
How can I find my machine running network configuration from outside?
I am running a barebone Centos7 installation so only command line, no graphical interface at all.
Thanks,
M.
You can ssh to your physical host from another one having graphical interface with X forwarding enabled (ssh -X machinename), and look at the the VM with virt-manager
You will need X running on the machine you're connecting from. For Mac OS it's XQuartz
I am trying to connect to a remote system which has CentOS running on it from a Windows machine. I am getting the following error:
My remote computer is on and is available on the network. I tried following the steps mentioned on this website http://www.techotopia.com/index.php/Remote_Access_to_the_CentOS_6_Desktop to enable remote access on centos as well.
Currently I can access the remote sever through commandline utility like Putty only.
I use VNC for remote GUI admin work on CentOS device's from windows its nice and easy to set up and use, below are links to CentOS 6.5 set up guide and 7
https://www.howtoforge.com/vnc-server-installation-centos-6.5
https://www.howtoforge.com/vnc-server-installation-on-centos-7
Let me know how you get on :)
As posted by PaulM, I followed the steps in the website to install VNCServer on the centos machine.
To connect from my linux machine, I wrote the following commands:
vncviewer
IPAddress:5901
Adding the port number specifically made it work
CentOs to centOs Only
No Need Any Softwares Already Centos have TigerVnc Viewer
1.Enable Remote desktop in your centos system
Goto System-->Preference-->Remote Desktop
**i.Enable allow other user to view your Desktop**
**ii.Enable allow other user to control your Desktop**
**iii.You must confirm each access to this machine allow or cancel**
**iv.if you ask any password to enable and type your password**
Notification Area:
Some one connect your system its enable to shows the icon on top panel.
I have a Pi that runs hostapd and dhcpd on arch linux to create it's own land with the Pi's (routers) IP being 10.0.0.1. This uses the wlan0 interface and it only serves as a standalone router running a web server.
Once I connect to the Pi, I use 10.0.0.1 to display the web pages, but I want to use a hostname such as firepi. I have tried using dnsmasq, but I haven't been successful. Any help would be greatly appreciated especially if you can give me some detailed examples as I am a novice.
The purpose of this system is that I have created a web app that you can use to ignite fireworks over WiFi at a safe distance. I would just like the convenience of using a hostname instead of the IP address.
I must add that I will more than likely be using an iPhone to connect to the server, should this affect anything.
Not too sure how or why but this is what I did and it is successfully working now, so this is just for future users who may need a similar setup to mine.
First I installed hostapd and dhcpd and made sure they were working. Next I changed '/etc/hostname' to firepi and the '/etc/hosts' and added '10.0.0.1 firepi'. Then I installed dnsmasq, and set the interface to wlan0, and finally added '10.0.0.1 firepi' to '/etc/resolv.conf'.
After a full reboot, I joined the network on my iPhone, navigated to firepi and sure enough, it worked!
Thanks to the other users for their advice and tips.
You can use avahi on Arch as well to resolve your hostname:
sudo pacman -S avahi nss-mdns
Start the avahi daemon:
sudo systemctl enable avahi-daemon.service
sudo systemctl start avahi-daemon.service
Edit /etc/nsswitch.conf
sudo vim /etc/nsswitch.conf
Change the line:
hosts: files myhostname dns
to
hosts: files myhostname mdns_minimal [NOTFOUND=return] dns
Reboot
Note: don't forget to add .local to your hostname.
See also:
http://blog.pixxis.be/post/77285636682/resolve-hostname-with-arch-linux-on-a-raspberry-pi
If you just want to be able to use "firepi" as hostname to connect to it, you can simply add it to your /etc/hosts file using the syntax "IP host".
To make it as easy as possible, run this command as root:
echo "10.0.0.1 firepi" >> /etc/hosts
That'll do the trick.
Can you try avahi ?
sudo apt-get install avahi-daemon and
sudo apt-get install avahi-browse
I've successfully used that on Raspian. Unless you change the hostname using
sudo raspi-config you will access via raspberrypi.local
Note that if you plan to access the RPi from Windows you will need to install Bonjour Service first(if you have iTunes intalled, you might have those, run services.msc and check if the Bonjour Service is started)
Another note: On a friend's iphone I've installed a generic vnc client and had x11vnc running on the RPi and succesfully managed to connect to the RPi (since avahi-daemon was installed)