Ubuntu Networking :: DNS - Ping Command For Receiving Reply
Apr 8, 2010If I type
Code:
$ ping [URL]
or even
Code:
$ ping google.com
should I receive a reply?
ADVERTISEMENT
Fedora Networking :: Ping's Reply Even When Domain Is Invalid?
Jul 31, 2009I was using my ISP's DNS server. When I would ping something that doesn't exist, e.g. blahtest.com, it would reply anyway. When I tried to go to the site in a browser, it was some page like "I hope we can help you find what you're looking for". I thought that was ridiculous, so I changed to OpenDNS's DNS server.
View 4 Replies View RelatedCentOS 5 Networking :: Unable To Ping - No Reply From Certain Address While Others Work Ok
Jun 25, 2009I run an centos server. From the console I can ping google.com and get a reply. But when I ping another address say xyz.com, the IP address is resolved (11.22.33.44) but there is no reply. In the same network in our office from my desktop I ping [URL] and there is a reply.I turned of the firewall but still the same problem.
View 9 Replies View RelatedNetworking :: Cannot Ping With Command - Ping IP - Address But Can Ping With - Ping IP -I Eth0
Jul 15, 2011I am using an virtual machine. where I need to ping from one machine to another. earlier I was able to ping. But after going to google.com once, I cannot ping back to this machine.
But if I gave ping -I eth1 <IP> then I can ping.
I cannot install any package, so tell me solution which includes not installing any package.
Ubuntu :: 9.04 - Do Not Get Ping Reply
Mar 18, 2010I have install ubuntu 9.04 on my machine. When I am trying to ping google.com, I do not get ping reply but I am able to browse Internet. Also, I am able to ping any of the local machine on LAN.
View 9 Replies View RelatedUbuntu Servers :: DNS - Ping A LAN Device By Name - Get Reply With Only The IP Address
May 2, 2010I have configured DNS on ubuntu server 8.10 and it is working fine. There is one question I have though. Everytime I ping a LAN device by name I get the reply from the server with only the IP Address.
View 2 Replies View RelatedNetworking :: Host And Ping Command Not Working
Feb 28, 2010I am working behind a http proxy (172.30.x.x:3128). I have configured it in my terminal. All the applications such as wget,lynx firefox etc. are working correctly.However all dns utilities like nslookup, host and even ping too are not working.Following is output of host command:
Code:
root@ding:~# host google.com
;; connection timed out; no servers could be reached
Output of host -T:
[Code]....
To connect to net I have to first run dhclient3(learnt from this forum!).It gives me my ip but where is dns address sent I don't have and idea.
Networking :: Execute A Command (ping Or Telnet Or Ssh) On Ip 192.168.0.20
Nov 25, 2010When I execute a command (ping or telnet or ssh) on ip 192.168.0.20 it is ok.
If I execute the same command on
ip 192.168.0.020, it looks for
ip 192.168.0.18 instead of
ip 192.168.0.20
And it's the same for others ip if I put a 0 ahead last byte.
Networking :: Routing Command - WinPC1 Can Ping WinPC2
Jan 7, 2011I have 2 windows PC and a linux as router in the linux there are 2 NIC eth0 and eth1. I created DHCP on eth0 and manually configured on eth1. My eth0 gateway was 192.168.26.253 and my eth1 was 192.168.22.253. I needed to ping the 192.168.26.x WinPC1 to WinPC2. What command I will use on linux so that the WinPC1 can ping to WinPC2.
View 6 Replies View RelatedNetworking :: Print AND Real-time Output Of PING Command ?
May 3, 2011Let's say I am pinging a host, and want to output to a file each reply and its timestamp of when this started.
I know that it can be done with a loop and a shell script. Something like this
DO
echo "$(date)" >> results.txt ###includes the time and outputs results to txt###
ping -c 4 HOST >> results.txt ###a total of 4 pings at a rate of 1 per second###
REPEAT UNTIL USER PRESSES CTRL-C
Now, my first issue is that I need to be able to see results real-time as well.
Is there a way one can print to BOTH a screen and output? If one uses the ">>" command, it is essentially sending everything to the file. Running another ping command in parallel is not an option.
Ubuntu Networking :: Unable To Ping Over Wireless But Can Ping Over Wired?
Jul 24, 2010I have two machines on this network, one running Ubuntu and the other running Fedora.
When I'm using the Wireless network on the Ubuntu machine, I cannot ping the Fedora machine. Everything else works. I can browse the net fine.
If I switch over to the Wired Network then I can ping the other machine.
I don't understand why ping doesn't work only over the Wireless. I can ping the router so I'm guessing it's getting blocked by the router but I didn't block ICMP traffic.
I tried asking on IRC and they ran out of ideas too to find out where the problem is.
Debian Multimedia :: Use The "ping -a" Command For Getting An Audible Ping
Jul 8, 2011I try to use the "ping -a" command for getting an audible ping. But there is just silence The command "beep" works fine, so everything should be ok with the speaker (in the konsole).
View 3 Replies View RelatedSoftware :: Look For Free And Well Known Fax Command Line Tools For Receiving And Sending Faxes?
Apr 19, 2011I am looking for free and well known fax command line tools for receiving and sending faxes I wan it to save receive faxes in pdf format with file name included with caller phone number and date of receive:
Quote:
for example:
5566545544-2011-5-11.pdf
and any other format that I want.
Networking :: Debian 5 - After SysCp Installation And Configure Ping Valure - Ping - Unknown Host
Jul 9, 2010Ive got a problem on my server ....installed Debian 5 , Webmin and than syscp settung up syscp ready ....
I try to ping "localhost" ansver ping: unknown host
I try to ping "localhost." there is a host with IP 127.0.0.1
I need it to change it in "localhost"
Is that the bind9 maybe?
Networking :: BIND9 SLOW Ping When Ping By Hostname
Feb 1, 2011I just installed my first EVER bind DNS server. I am running bind9 on Ubuntu 10.04. Everything seems to be working great except one thing: If I ping a host that I have set up in bind by its HOSTNAME the pings take 5-6 seconds to reply/print to the screen between each echo response. If I ping by the host's IP address, they echo back very quickly.
I have read that IPv6 can cause this, but I have disabled it in /etc/sysctl.conf and the problem still exists.
I know everyone says this can't be a DNS issue, but this never was an issue with dnsmasq (which i was using prior), and it doesn't make sense that the ping are ONLY slow when pinging by hostname and not IP.
Configs below:
Ping by hostname - there is a 5-6 second delay between each one of the responses:
Code:
Ping by IP - the responses come VERY quickly one after the other:
Code:
/etc/resolv.conf:
Code:
Code:
rev.0.168.192.in-addr.arpa:
Code:
Networking :: Can't Ping Past Gateway / Can Ping Server From Outside
Apr 29, 2010So, I have an Virtual Machine running CentOS 5.4. It sits behind a hardware firewall which also does NAT'ing. I've set up plenty of these, so I know for sure the firewall and NAT rules are set up correctly. From the host, I can ping anything in my subnet and the gateway. But I can't ping anything else beyond the gateway. I can perform DNS queries and when I try to ping, it finds the appropriate IP address.But from the outside, I can ping the PUBLIC address (It's a 1 public to 1 private address NAT, not 1 public to multiple private). I've tried it with IPTABLES on and off, with no change.
View 11 Replies View RelatedNetworking :: Ping Connection To Router OK But No Ping Between Boxes In LAN
May 26, 2010I have Mandriva One 2009.0 (192.168.1.100) on one box and Mandriva Free 2010.0 (192.168.1.118) on the other. I can ping router (192.168.1.1) from both of these boxes but I can't ping one box to the other and the other way around. What's going on?.
Do I have to change some settings in router?. Or is it firewall issue on those two machines?. Both of these boxes are connected by cable. Symbol of the router: TL-WR340G.
Networking :: Djbdns Doesn't Reply To External Queries?
Apr 27, 2010I got a mission to move our company's ns3 from one machine to another.I've installed the djbdns software on other machine, configured it(or at least I think soand if I make a "nslookup www.google.com 195.222.14.7" query from that paticular server then I get an answer straight away, but if i make the same query from local machine i get connection timed out
View 12 Replies View RelatedUbuntu Networking :: Receiving 4.5 KiB/s To 7.0 KiB/s?
Feb 1, 2011I have been receiving 4.5 KiB/s to 7.0 KiB/s on average. This is with nothing connected actively using Wi-Fi (browser, download, etc.) Why is this? It is happening on Lucid x86. I have a 64bit machine, but unfortunately neither the 32bit or 64bit wireless works "out of the box" for me. My wireless card is Ralink RT3090PCIe. I have not found a package to support my card in Ubuntu 64bit (I prefer 64bit over 32bit.). For now there is this as a package for Ubuntu 32bit https://launchpad.net/~markus-tisoft/+archive/rt3090
Another thing, as of late (about a week) my wireless connection strength has diminished substantially was 95-97% now 73-85% This is unusual. Hopefully not any shady neighbors.
I am strongly considering deleting the Ubuntu partition, until a 64bit works "out of the box" for the wireless or at the very least only use this Ubuntu 32bit Lucid version with all network permantly disconnected. To be fair, I have tried quite a few other 64bit Linux distributions (Live CDs) and these others did not work wirelessly "out of the box" either.
I am by no means a Windows "fanboi".....but Windows 64bit does work for me "out of the box", as it should. So, I may have to go there (back to Win7), until I find a release of Ubuntu 64bit that has a wireless that works for me, without any errors/problems.
Fedora Networking :: Xp Can Ping 10 - But Can't Ping Xp
May 21, 2009I have connected xp and fedora through crossover cable . xp has ip address 192.168.0.1/24 (manually assigned) fedora has 192.168.0.2/24 with default route equal to 192.168.0.1
I can ping fedora from xp computer but i can't able to ping xp from fedora computer.
I have manully edit the /etc/sysconfig/network-scripts/ifcfg-eth0 file with correct subnet mask and ip address because when i tried to give ip address manully in network manager the subnetmask is replaced with gateway address don't know why.
Now i want to share internet through crossover cable . xp is connected to internet through wireless usb adapeter.
Server :: Web-server Doesn't Reply To External Request / But It Reply's To Local Request
May 11, 2009I am new in linux,I installed apache-tomcat on fedora.I can view all web pages on localhost:8080 but when I try to view them by server's url address from another computer, I don't get respond.Can it be a firewall problem or something else?
View 4 Replies View RelatedNetworking :: Scp Sends Ok But Stalls On Receiving
Aug 17, 2010I have set up a server using Suse, which I have done several times. This one is running 11.2 'Emerald'. It has 2 network cards. One is connected to a bt router with a static ip, and the other is for the internal network. The server is used as the gateway for the internet via masquerading. I have 2 issues, which I suspect are related. I can ssh to and from the server fine, but if I try to scp a file, it is fine sending to a remote machine, but stalls if I try the other way.
It also stalls if I try and send from the remote machine to this one. I have tried debug mode, but no 'error's occur, it just stalls.The internet connection is also very slow and sometimes stalls, so there may be a link.I am not new to linux, but this has me baffled. This server replaced a Suse 10.2 server with similar config, and that worked fine.The firewall allows ssh, so I don't think its that.
General :: Tried To Do Wlanconfig / But Receiving 'wlanconfig Command Not Found'
Jul 24, 2011I tried to do wlanconfig but receiving "wlanconfig command not found".I read that the problem is probebly that the file is missing or in a difrrent directory, if so, how can i detect it on BT5 or download it and install?
View 3 Replies View RelatedNetworking :: Client Receiving UDP From Multiple Sources ?
May 14, 2009I have to implement a client/server solution that pretty much does this:
1) Client broadcasts UDP packet;
2) client receives answer packet from multiple servers - it includes the TCP port to use next and a list of files;
3) user picks file from list;
4) client downloads from server via TCP.
I got the client to broadcast and the servers reply. However, i'm not yet getting the client to be able to receive multiple packets.
I'm very inclined and have tried to implement select, but most examples i find are for stream sockets. Once the fsSet shows a read event would i create a new socket or just use the main socket for recvfrom()ing? I assume i need at least two sockets. However i'm not sure if this will allow the client to actually receive simultaneously... so i'm kinda not wanting to guess that this implies fork and threads... Also, i assume the socket must be nonblocking (done), although i've read somewhere select would take care of this?
Networking :: Nagios Not Receiving SNMP Data?
May 18, 2010I have recently set up nagios on a ubuntu server (9.10), and set it up to monitor all the servers, switches etc, following the quickstart guide provided on the nagios website.My problem is this:I have setup the nagios-plugins, and tried to set it up to monitor the network switches via SNMP but receive the following within the nagios web interface:SNMP problem - No data received from host I tried it from the command line, and got the exact same error.Is there some further configuration I need to do to be able to get this data?I've used up all my google-fu, and read over everyone else's problems on every forum I could find, but to no avail.
View 6 Replies View RelatedNetworking :: Receiving Multicast On Multiple Interfaces?
Jul 9, 2010I am trying to run some benchmark tests for multicast. What I want to do is have one system send multicast packets and another receive it on all it's interfaces (eth0-eth3). Whenever I run receiver on more than one interface I get echo effect (if I receive on x interfaces then I get same packet x number of times). Is this how it is supposed to behave? It does not make any difference whether I use loop-back or not. I have set SO_REUSEADDR to yes. I run separate instance of receiver on each interface. I am doing this on RHEL5 systems.
# uname -r
2.6.18-164.20.1.el5
Networking :: Receiving UDP Packets - Default Gateway
Apr 11, 2010I have a computer with two interfaces: a fixed connection (eth1) and a modem (ppp0). My goal is to receive UDP packets from both connections concurrently (using the recv() function). The problem is, that the received packets reach the application only when the default gateway is set to that interface's address. For example, if I set the default gw to be in the eth1 subnet, only packets from eth1 reach the application. Other packets are received in the interface (checked using tcpdump), but they seem to be blocked somewhere. The policy defined in iptables is "ACCEPT" for all incoming packets, with no rules at all. I would like to know how to overcome this problem, and anyway how is the default gateway related to incoming UDP?
View 3 Replies View RelatedNetworking :: Ping Using PHP Exec("ping -n 1 $ip",$output[],$retval)?
Apr 23, 2010I try to ping with php : exec("ping -n 1 $ip",$output[],$retval); it works fine in window. but in linux i got this error : ping: icmp open socket: Operation not permitted are there any ways to solve this ?
View 5 Replies View RelatedNetworking :: Sending / Receiving Between Two Systems Using IPv6 Addresses
Mar 8, 2010We have connected two systems with ethernet cables and have configured the two systems with ipv6 addresses. The IP of one system is 2001:0db8:0:f101::1 (let's say X::1) (This system runs OS Fedora 10) and the other is 2001:0db8:0:f101::2. (Let's say X::2) (This system runs OpenSuSE 10.3) We are able to ping from both systems to the other. We are able to ssh into the one with IP X::2 from the one with IP X::1, but not vice versa.
We have disabled iptables on both systems by using the following commands:
/etc/init.d/iptables save
/etc/init.d/iptables stop
on the fedora 10 system and
# iptables -X
# iptables -t nat -F
# iptables -t nat -X
# iptables -t mangle -F
# iptables -t mangle -X
# iptables -P INPUT ACCEPT
# iptables -P FORWARD ACCEPT
# iptables -P OUTPUT ACCEPT
on the openSuse system.
The error we get in trying to ssh from the openSuse system to the fedora system is:
ssh: connect to host 2001:0db8:0:f101::1 port 22: Connection refused
We're trying to write server and client code to send data from one system to the other using SOCK_DGRAM. The code works fine when we run both the client and server on the same system. However, we are not able to send data from one system to another when we use the IPv6 addresses to run the client and server programs.
The error we get is:
sendto(): Operation not permitted
The codes we are using for the server and client programs can be found here in beej's guide here : [URL]. We've only substituted the appropriate addresses in the right places... We've disabled the iptables...
Networking :: Sending / Receiving Data Simultaneously Using BSD Sockets
Jun 25, 2010I would like to send a data using one thread and receive a data using other thread by using a same socket connection using USD sockets. The calls i am using for sending and receiving are send(), recv(). let me know is it possible to send and receive the data parallel (Full duplex communication)?
View 2 Replies View Related
