Network Commands?

Newbie question on networking he

I read an article on network tools (tcpdump, wireshark, nmap etc)

One big distinction was made between network sniffers and network injectors. Of course, I cannot find the article anymore on the internet.

A brief explanation would be more than welcome.

Hi Folks,
Installed Mint-mate 17.
It gives message:You are now disconnected" after logging in.
I restart, the network connection comes.
It is not "networking restart", but system restart.

Tried five more times. The behaviour is every time the same.
After booting the system, no network connection. But from there I restart the system, then network connection is on.

Very irritating to always boot it second time to get the network connection up.

The computer is a desktop Dell Optiplex 9010.
On the same computer, Windows 7 runs without any problem.

Any idea how to fix it?

Thanks

Hi all

I am helping fixing a set of old suse VMs and there is something seriously weird going with the networking.

My netstat -nr shows one set of routing commands and the yast/networking shows another set routes, routes that I know doesn't exist on our network.

Has anyone seen this before?

For example, in the attached screenshot, we can see yast shows I have no routes.
But here is the netstat -nr output:

hostname:~ # route
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.224.0 * 255.255.255.0 U 0 0 0 eth10
192.168.226.0 * 255.255.255.0 U 0 0 0 eth11
192.168.110.0 * 255.255.254.0 U 0 0 0 eth12
link-local * 255.255.0.0 U 0 0 0 eth10
loopback * 255.0.0.0 U 0 0 0 lo
default 192.168.110.1 0.0.0.0 UG 0 0 0 eth12

Thanks

I installed Debian 7.8.0 in text mode. While I configure eth0 through /etc/network/interface it assigned the IP but unable to ping to other machine in the network. I tried /etc/init.d/networking restart but still not working for me.

While I install GUI mode, it allows me configuration done through Network Manager and it pings good to other machine.

I have selected base install during the installation.
How to fix it under text mode?

I want to connect a windows workstation to a rh linux network by a 35 meter network cable but it reads 10 Mbps speed and I can't virualize a physical redhat machine in the network
Is the problem with the windows, the cable length or I need to do some configuration in redhat.

Hi,
I work with Ubuntu 14.04 LTS on my laptop and desktops. I am facing two issues:
i) Even in LTS, every week there are upgrades, on one count or other. This is not a concern, but what is painful is that if the upgrade does some tweaking of the kernel, I lose the support for Gnome Desktop and Nvidia...To get the machine back to the desktop, I have to sometimes knock off Nvidia*, and then try repairing with the advanced choices...otherwise the system boots up but the X-Display is unaccessible...
2. Secondly, why does Ubuntu want me to use DHCP...? I conmfigure it always for static IP, and even write out a /etc/resolv.conf...but the NM deletes the entries... I want a solution to this issue...I am using a Vostro 3570, an Inspiron 530 and a Envy15 Laptop,,,

3. I find that the network is never a problem with the FC20, which I use with dual boot...what is wrong with Ubuntu Networking implementation please?

4. Finally, my most urgent question (to anyone who can help) is how to directly load Ubuntu or FC20 on to a desktop or laptop on a new disk...From where can I get the basic Linux drivers ...? There is no such problem with Win7!!! (IMHO which is a much poorer OS for professional computing...)
5. Dell though it supports Ubuntu 12.04, refuses to give the drivers even for their systems under warranty, ditto for HP...So Dear Sirs where does one go for a remedy...

Warm Regards

I have a number of CentOS 7 VMs and there is only one that won't automatically connect to the wired network.

Thru the gui (Gnome 3.8.4), I found the checkbox to automatically connect it, however I would like to know what file to modify in the future for my learning experience.

I was not able to find the file to modify. I looked under /etc/sysconfig/network-scripts.

thanks

I built a VM in Vcenter with CENTOS 7 OS on it with minimum installation. I have my RPM's in a folder on my network drive. How do I get my RPMs onto my server. Also someone was telling me there is one RPM that is needed first on my server for networking. Anyone have any suggestions. thanks

Hi everyone, I am a new member and also new to linux, I encountered a problem, but last week I tried but did not solve
I downloaded iso file linux 1.1.0 on page potassium https://www.kali.org, I installed on my Dell inspiron n4010, it works very well and does not have any errors, but after I update and upgrade all packages, I rebooted the system switches to the command line, I lost a lot of time to return to the graphics, but when booting up the network manager icon not seen, I have set the package network-manager-gnome_0.9.4.1-0ubuntu2_i386.deb network manager icon show but when click on the network manager icon only contained text "network manager is not running."
I also installed Wicd but could not run "could not connect to wicd's D-Bus interface. Check the wicd log for error messages."
wireless driver apparently was set before
root@kali:~# airmon-ng
PHY Interface Driver Chipset

phy0 wlan0 wl Broadcom Corporation BCM4313 802.11b/g/n (rev 01)

please help me!
please guide installed offline, my kali linux no internet connection. can download package from another machine to install.

Just joined LQ,I have a question on establishing full access networking with a Win7 box, I'm able to share a created "Public folder" and my devices seem to share well, but I am having to place Win7 objects in "public documents folder" to import, manage or change them, thank you for any conciderations.