I have three linux pc. assume server-A, server-B and server-C. server-A is connected with server-B trough eth0 (ip:192.168.1.5) and server-B side ip: (eth0)192.168.1.1. Server-B is connected with server-C through eth1 (ip: 10.10.10.1) and server-C side ip (eth0) : 10.10.1.4.
I want to ping between server-A and server-C. what can i do. if it is possible by iptables what is command.
I did one of the recommended port scans and all ports passed but failed on pinging. How do you turn pinging on & off with GFUW?
View 9 Replies View Relatedwhen i type ping"proxy address" in my command line i get
pinging with 64 bit data while in windows i used to get 32 bit data...
whats the difference between the two??
I was doing some one-handed-one-fingered typing while talking on the phone. Due to lack of paying attention, I executed the following command: ifconfig eth0 1300 (was meant to be ifconfig eth0 mtu 1300) this of course killed the connection, so I got the box rebooted. This box functions as an openswan/firewall server. everything came up okay, end users are reporting no problems with the vpn or the firewall function. However, one service is failing because the route to localhost seems to be originating from eth0. when I `ping localhost`, the traffic dump shows the ping packet originating from the external address. On all my other boxes, when I ping localhost, the traffic originates from localhost. The reply to my ping behaves normally.
here is a dump of my pinging localhost: fw-ps:~/scripts# tcpdump -n -i lo listening on lo, link-type EN10MB (Ethernet), capture size 65535 bytes 10:00:01.885033 IP 194.246.23.22 > 127.0.0.1: ICMP echo request, id 6893, seq 12, length 64 10:00:01.885068 IP 127.0.0.1 > 127.0.0.1: ICMP echo reply, id 6893, seq 12, length 64
I considered trying to manually add some routes, but since the reply is working, I am not sure that is the problem. I also considered trying to change the default interface, but I don't want external traffic originating from the loopback.
I am starting a project of my own (and learning C++ at the same time. I got my program to successfully scan a custom netmask, but it is REALLY slow. I want my program to do something similar to nmap -sP xxx.xxx.xxx.xxx-xxx. How to speed it up? Such as pinging more than one IP at a time...
Code:
#include <iostream>
#include <cstdio>
#include <cstdlib>
#include <sstream>
using namespace std;
int ip42;
string ip1, ip2, ip3, ip4, ipaddr;
int main() {
cout << endl << "Enter part 1: ";
cin >> ip1;
cout << endl << "Enter part 2: ";
cin >> ip2;
cout << endl << "Enter part 3: ";
cin >> ip3;
cout << endl << "Enter part 4: ";
cin >> ip4;
while(ip42 < 255){
ipaddr = string("ping -c 1 ").append(ip1);
ipaddr = string(ipaddr).append(ip2);
ipaddr = string(ipaddr).append(ip3);
ipaddr = string(ipaddr).append(ip4);
system(ipaddr.c_str());
ip42 = atoi(ip4.c_str());
ip42 += 1;
stringstream output;
output << ip42;
output >> ip4; } }
I had a router crap out yesterday. I'd been testing out a new one for the last few days and just reconfigured it to be the main. Took the old one down and everything in my house (Windows 7 PC, XP Files server, Ubuntu PC , windows 7 laptop, android tablet, ps3, etc) seems to be working fine whether it be hard wired or wifi. All except my ubuntu 10.04 laptop. It worked fine before the swap so I can't figure out what's going on.
I'm able to connect to the new SSID without issue but I can't resolve any external names and when I try to ping the default gate way every other packet has (DUP!) behind it. If I'm hardwired I don't get the dup! when pinging the default gateway but I still can't resolve any external names. I have provided the results of an ifconfig and the results of a ping to the default gateway below.
cooley@Quigon:~$ ping 192.168.1.1
PING 192.168.1.1 (192.168.1.1) 56(84) bytes of data.
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=2.98 ms
64 bytes from 192.168.1.1: icmp_seq=1 ttl=64 time=3.04 ms (DUP!)
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=3.50 ms
64 bytes from 192.168.1.1: icmp_seq=2 ttl=64 time=5.72 ms (DUP!)
64 bytes from 192.168.1.1: icmp_seq=3 ttl=64 time=8.09 ms
[Code]...
I have an HP BL460c G5 with 5.3 installed fresh
it can ping its own IP address just fine
its a bit slow but constant pinging the switch its connected to
and i get alot of Destination host unreachables(a few do get through) when pinging the gateway
port on the switch is hardcoded to GB/full. and the server itself reads that its connecting at GB/full.
I'm using kubuntu 9.10 desktop edition as a server and I set the IP statically, what happens is that when I ping it from another machine on the same network, I get intermittent packet loss (up to 80% and sometimes even higher). When I ping any other machine on the local network everything's fine with 0% packet loss. Packets go directly through switch, no router or anything in between.
I suspected wiring issues, but that doesn't seem to be the problem after I changed the wiring. I was connected to wireless and suspected that but no go either. Same thing when I turn wired. I just changed the ethernet card suspecting drivers but that's no good either. Iptables is a cleanslate installation, it's totally empty.
Installed Fedora 10 with Mozilla-Firefox, I can get out on the internet by pinging outside IP's but Firefox browser returns cannot locate www. does anyone know what package I need so browser connects.
View 7 Replies View RelatedI have two network interfaces and their entries are shown as eth0 and eth1... I want to assign them static IPs which I do by
ifconfig eth0 192.168.9.245 netmask 255.255.0.0 up
ifconfig eth1 192.168.8.245 netmask 255.255.0.0 up
But I am not sure if it will ping both the interfaces if I issue a command
ping -I eth0 192.168.9.113 (machine in network)
ping -I eth1 192.168.9.113 (machine in network)
I am getting pings from eth0 but not from eth1
So I've been reading around a bit, and have found a few fixes for this Resolving Hosts problem, but none of them have fixed mine yet. Basically what happens is all browsers fail to load pages, pinging local network works, but pinging default gateway doesn't. Cannot ping external websites and cannot reach update or upgrade servers for ubuntu. All networking works as normal on all other PCs in house, as well as the windows 7 boot I have on my ubuntu PC.
What I've tried:Disabled IPv6 completely by preventing the module from booting up Manually setting network settings instead of using the router's DHCP server Changing DNS servers from ISP to Google public DNS to OpenDNS Buying a new ethernet card And a few other things I can't remember off the top of my head, none of which worked. From memory, all this just started happening out of the blue. I recently changed from Windows to Ubuntu, and was enjoying the switch but all of a sudden I couldn't get on the internet on Ubuntu.
Now, I'm not sure why, but I decided to ping myself. Not my LAN ip, but our router's WAN ip. It worked, albeit took a little while to return a response the first packet, but each subsequent packet after that was a normal speed (~0.5ms). The strange thing about this was that I found that for a few seconds after pinging myself, I could access the internet. After a few seconds though, it returns to it's resolving hosts self again, which another self-ping would fix.
Consequently, in order to browse, I have an open terminal constantly pinging myself which appears to be working. Not ideal, and certainly not something I would like to keep doing for long, but it works for now. I really like Ubuntu, but if I can't get this net thing fixed, I can't finish moving over from Windows!
I'm running wicd 1.7.0 on Kubuntu 10.04, with an Actiontec DSL wireless router (with an internal dd-wrt "bridged" router as well;Any idea what "magic" those lines are performing and if it's possible to make wicd do it all the time (instead of just the third time)?Very happy to pursue any debugging if anyone has any ideas, as it's pretty annoying to have to wait an extra couple minutes on every boot until connecting.
View 1 Replies View RelatedI'm trying to ping another Ubuntu computer on my local network. If I try doing,ping <hostname>then I get the messageping: unknown host <hostname>however, if I doping <hostname>.localthen I get a response back. I was wondering how I can change it so that I can ping without having to append .localI've installed winbind and modified my /etc/nsswitch.conf file but this has made no difference.
View 2 Replies View RelatedIve recently installed lubuntu 10.04 on an old sony vaio. ive been able to connect to the internet (satellite broadband) for a few months then no connection. the connection is fine so its definatly the network on the vaio. ive tried pinging to no avail.
View 5 Replies View RelatedI just wanted to upgrade to fedora 11 from the current version 5 with the of a live cd.I dont want to loose the previous configuration files. upgrade everything except the / directory. How do you do that? I also have a retarded WINXP partition on the same drive which I dont wanna loose.
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View 2 Replies View Relatedinstall of Fedora, always used Debian or Ubuntu before now, and am looking for versions of localepurge, deborphan and debfoster - do they exist in the Fedora Software Repository?
View 10 Replies View RelatedI have a Samsung N130 with a Realtek 8192 wifi card (possibly 8192e, I'm not sure) and I am trying to run Fedora 12 on it. I used to run Ubuntu until trying their latest beta and realizing it's not very good, so I looked for something else. Ubuntu was at least easy to get the wifi working with just a few quick commands that were written out, word for word, in order, on the Ubuntu forums. I tried openSUSE on here and it didn't have wifi working out of the box either but people on their forums refused to give me actual instructions and just kept bumping me from thread to thread with people giving vague advice or else just telling me I was looking in the wrong place. I'm hoping that someone can give me clear and detailed instructions on how to get this wifi card working. Keep in mind that I am coming from Ubuntu and so I'm not super comfortable in CLI, if I need to do some CL stuff I will need clear and detailed instructions on how to do that.
View 4 Replies View RelatedI am newbie to linux, I am dealing with Fedora core 13. I have already succeedded in building an ad hoc network and a WLAN network. My next step is to get some networking statistics such delay, throughput, etc. So, I need traffic to flow through the network for both multimedia traffic and bulk data traffic. How to send files between nodes on the network (I found commands ftp, rcp but do not know whether they are the correct choice for this). ID their any application to perform this?
Also, I want to perform some video streaming between two nodes to study the behavior of real time data transfer. Is thier any application to perform this?
My laptop is currently running on Windows 7 Ultimate. I have a 320 GB HDD, which I have partitioned as follows. C: Drive as Windows 40 GB capacity and successively partitioned the rest of the drives for 50 GB capacity and left an unallocated space of 67 GB for fedora 13 x64 installation. The problem that I am facing is, that I am unable to install fedora on this unallocated space..even though I am checking the option for "Creating custom Layout". When I check the option for "Creating Custom Layout" Ive been shown with the only option to install fedora on the unused space on the HDD which is around 265 GB. I am also attaching a screen shot of my disk management. how I can install Fedora on this unallocated space of 67 GB?
View 12 Replies View Relatedmy problem is inkscape-0.48.0-1.fc14.3.src.rpm in fedora 14 64 bittry rebuild --source inkscape-0.48.0-1.fc14.3.src.rpm and this my error:I think something wrong pkgconfig .
attributes.cpp:20:32: fatal error: glib.h: No such file or directory
compilation terminated.
arc-context.cpp:21:28: fatal error: gdk/gdkkeysyms.h: No such file or directory
[code]....
This post is for an HP parallel printer but I think it should work for at least "some" other parallel printers.I am sure that someone smarter than me will follow up this post with a "well, just do this and that" and you will have your HP Laserjet 6P printer ready to go, but since questions litter the forums of MANY distros on how to get "at least" an HP parallel printer to work, I'll post this anyway.This may or may not work for you if you do not have an HP but you can try it.The install printer box will let you do an install for an HP Parallel and it asks for how it is to talk to it, through CUPS sock or "local host'. When we get through what I recommend you should chose "local host".
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View 6 Replies View Relatedi am justin i'm 17 years old and new with linux, i use ubuntu and linux mint 7 and a friends of my has a dedicated fedora server. he asked me to intall a desktop manager ( or something that is the same, dont know how to call it ) so he could use remote desktop to acces his server
i have connected the server trought ssh and i am in the terminal. Now i want to install kde or gnome so i and my friend could use the server as a mail en WWW bla bla bla server. and my question is how i need to do that i tryd : yum groupinstall "KDE (K Desktop Environment)" and yum groupinstall "X Window System" but none works i have seen those commands on this forum so i tryd it.