Code:$ host 80.159.xx.xxxHost 222.79.xxx.xxx.in-addr.arpa not found: 3(NXDOMAIN)What does this mean? The person currently using the IP address in IRC is chatting right now, but how come if he's online it doesn't return any information?
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A brief description of my network:It is a small home network consisting of an Ubuntu 10.04LTS server edition, an Iomega ix2 NAS, a WinXP pro server and several family laptops.This is all routed through a Netgear WNDR3300 home router. All are assigned IP's via DHCP and all but the laptops are static (via DHCP though). The WAN address/DNS is assigned via DHCP from my ISP.The problem:When one of the machines is offline, Ubuntu does not resolve the netbios name correctly. No surprise here. But what is happening is that it is finding some arbitrary machine on another network. Below is what a ping to an offline host reveals:
Code:
ping -c3 hostname
PING hostname (204.232.162.92) 56(84) bytes of data.
[code]....
Whwn I am sending mails , I used too get message like
Host found but no data record of requested type.
MTA: postfix
I have the following function, and it appears to set the var correctly, but then tries and executes the line as a command. Anyone know how to keep it from doing that?
PHP Code: SMALL_FILE_PERCENTAGE=88
MEDIUM_FILE_PERCENTAGE=10
LARGE_FILE_PERCENTAGE=2
[code]....
I'm trying to install the projectM visualizer and I'm running into some problems. Initially, I tried to install it by running "sudo apt-get install libvisual-projectm", which seemed to work... except there's no launcher for it in my Applications menu and "projectM-pulseaudio" returns "command not found". From there, I decided to try to build it myself, by following this guide (<- link). It went well until the "make" command, which returns the following error:
[Code]....
Many of mails sent from my mail server that are in Queue;The main reason is deffered by domains like yahoo,aol,etc.but there is one more error that i keep getting and that is Host Unknown,Below is an example from mail log,The catch is,test mail sent on the same email id sent from my personal mail from the same server i.e. url was deliveredHowever,another mail containing client information sent from customercare@mycompanysdomain ended up in queue.
There are more examples of the same,around 20 domain have the same problem.
Sep 7 14:33:46 server2 sendmail[24591]: n8793jiC024589: to=<abc@xyz.fi>, delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=163672, relay=xyz.fi., dsn=5.1.2, stat=Host unknown (Name server: xyz.fi.: host not found)
Sep 7 22:09:42 server2 sendmail[6407]: n87Gdffa006403: to=<abc@def-fgh.com>, delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=152474, relay=def-fgh.com., dsn=5.1.2, stat=Host unknown (Name server: def-fgh.com.: host not found)
I use Ubuntu 10.04. With sudo command I can execute root users commands.But why the following command:
Code:
sudo cd /root
returns error: "sudo: cd: command not found"?
I installed the Berkeley DB on the Ubuntu server and tried to access the dbxml from the command line and it returns command not found
path/to/dir/dbxml-2.5.16/install/bin$dbxml
-bash" dbxml: command not found
Can someone point me in the right direction
I am working on a cluster for a molecular dynamics class and I have to edit my FORTRAN code (only the newest and best for me!). In order to get through to the cluster I have to ssh in. The network on which the cluster resides is behind a firewall, so I have to ssh through the firewall into the network first.
this is fine, I can login and move files and folders as needed, including sftp-ing into host 1, then into the cluster so I can transfer files from cluster to host and then host to me. This gets rather tiresome, so it would be nice to edit the files in place.
The problem is that when I access my code with emacs it launches the emacs client on Host 1, with no mouse support. I know the purists will howl about how I should be using keyboard shortcuts, but I am a chemist and not a programmer, so the mouse is very nice for me. Is there any way I can perhaps mount the cluster using sshfs so that when I open my code it launches a local instance of emacs? Sorry if this is the wrong forum, but I thought it was network related.
I got a bunch of machines (~10) that I share with my co-workers. I have appropriate .ssh file(s) set up so I don't get prompt for password when I try to ssh.Currently I ssh into these hosts and then do a top to check the load before I start using the machine. Because I don't want to be on a busy host.Can someone show me how to write a script that find a least-busy host given a list of hosts to check? (hardcoded is fine)
View 1 Replies View RelatedI'm trying to install Cinelerra because it has a plugin to do chromakey. I found a .deb and installed it, but now I don't know how to start the program. It didn't make a shortcut in my main menu, and typing "cinelerracv" returns "command not found"Did I install it wrong, or not at all? What should I try next?
View 3 Replies View Relatedmy system keeps on telling me about an error:
Code: Select allsudo journalctl -p 0..3
Apr 14 10:36:11 debian ntpd_intres[682]: host name not found: ptbtime1.ptb.de
Apr 14 10:36:11 debian ntpd_intres[682]: host name not found: ptbtime2.ptb.de
Apr 14 10:36:11 debian ntpd_intres[682]: host name not found: ptbtime3.ptb.de
A quick check
Code: Select allsystemctl status ntp.service
ntp.service - LSB: Start NTP daemon
Loaded: loaded (/etc/init.d/ntp)
[code]...
3 packets transmitted, 0 received, 100% packet loss, time 1999ms.Same result when using the standard Debian ntp time servers like "server 0.debian.pool.ntp.org iburst" in /etc/ntp.conf.
The internal network is behind nat done by the PC Router.The TP Link is recieving wireless signal from outdoors and it has switching and basic routing capabilities. I'm using the PC router for better routing options.PC Router (or R for short) is a triple-booting machine - Linux, FreeBSD and Windows. It has two lan cards - external (ext_if) - 100Mbps Realtek 8139 and internal (int_if) - 1Gbps integrated Realtek 8169.The problem is that all traffic from R to the network is slow - about 5-20K, while the traffic in the oppoiste direction is all right - about 10MB that is fine for 100Mbps cables, NICs and switches. The problem persist no matter the OS the pc R is running.I've tried some debugging on the situation as follows:
- put another PC at the place of R - everything is fine. That exclude the possibility of damaged cables, RJ-45s, switches and etc.
- connected both of the NICs to the Internet while the internal network is being disconnected and they both work fine (no delays)
- traffic shaping is not running
- there is nothing in firewalls except NATing the internal network (and it is working fine). Actually these firewall rules have been operational for more than months and everything was fine untill a week or two ago.
- changed the internal NIC with another
- connected the internal network directly to the TP and all of the PCs are getting good network performance. Then connected the R machine to the TP as well and there was good performance between the internal network PCs and R.
- R has good performance to the TP. In fact everything has good performance directly to the TP (when not connecting trough R).
- the problem persist only between R and machines from the internal network.
i configured my sendmail, bind dns server + dovecot. i am getting the following error when i use to send email from 'root' to 'convert@mail.si.uk',
Oct 26 10:40:42 localhost sendmail[6829]: n9Q5ebnX006827: to=<convert@mail.si.uk>, ctladdr=<root@localhost.localdomain> (0/0), delay=00:00:00, xdelay=00:00:0
0, mailer=esmtp, pri=120345, relay=mail.si.uk, dsn=5.1.2, stat=Host unknown (Name server:
[code]....
I am running a desktop not a server. As far as i am aware of no server stuff is installed or tunning that does not come with the standard ubuntu 10.04 install. I tried using sudo iptables -A INPUT -s xx.xx.xx.xx -j DROP , it works sometines , then sometimes it does not. Some that it seems to block just come back in about 15 to 20 minutes. On this one in particular i get the following error :
sudo iptables -A INPUT -s 222-208-183-218 -j DROP
iptables v1.4.4: host/network `222-208-183-218' not found
Try `iptables -h' or 'iptables --help' for more information.
So here's the setup:
Ubuntu 10.04 host inbound port 22 open
FreeBSD 8.0 host no inbound ports open
Both hosts are running sshd currently. What would you do for the Ubuntu host to be able to ssh to the FreeBSD host? A tunnel?
i am trying to get postfix to relay through my isp's smtp server, but i am getting an error.Host or domain name not found. Name service error for name=mail.grandecom.net type=A: Host not found, try again...i can send mail inside my domain, but when i try to send an email to a test gmail address i find the above error in the log.
View 10 Replies View RelatedTearing my hair out on this one a little bit, having problems sending message from web based PHP form to user inbox.I keep getting: Undelivered Mail Returned to Sender<me@mydomain.co.uk>: Host or domain name not found. Name service error for name=mydomain.co.uk type=A: Host not found.Running these commands:
$ hostname = mydomain.co.uk
$ hostname -f = mydomain.co.uk
$ postconf -n =
[code]....
I am not so experienced with networking in Linux. I've successfully installed Red Hat Linux Enterprise 5.2 on a VMware host. When I issued nslookup command, it returns "connection timed out" error as follows:
Code:
[root@rac1 ~]# time nslookup rac1
;; connection timed out; no servers could be reached
real 0m15.038s
user 0m0.000s
sys 0m0.000s
My questions are:
(1) Is that error normal?
(2) Is there a way to decrease the 15.038s value? rac1 is the local hostname, so why it takes all that time to resolve it.
Following info may help:
Code:
[root@rac1 ~]# hostname
rac1.mydomain.com
[root@rac1 ~]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
127.0.0.1 localhost.localdomain localhost
#eth0 - PUBLIC
192.0.2.100 rac1.mydomain.com rac1
[root@rac1 ~]# ping -c 4 rac1
PING rac1.mydomain.com (192.0.2.100) 56(84) bytes of data.
64 bytes from rac1.mydomain.com (192.0.2.100): icmp_seq=1 ttl=64 time=0.015 ms
64 bytes from rac1.mydomain.com (192.0.2.100): icmp_seq=2 ttl=64 time=0.029 ms
64 bytes from rac1.mydomain.com (192.0.2.100): icmp_seq=3 ttl=64 time=0.029 ms
64 bytes from rac1.mydomain.com (192.0.2.100): icmp_seq=4 ttl=64 time=0.029 ms
--- rac1.mydomain.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3000ms
rtt min/avg/max/mdev = 0.015/0.025/0.029/0.007 ms
Debian linux:
I've tried apt-get install with the following packages:
And others and always get 'Couldn't find package'.
I tried doing an apt-get update and that worked without problem.
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 RelatedHost - Fedora 12 64bit
KVM
VM - Windows Server 2008 64 bit
bridge-utils
VM can ping host and Internet but host can't ping VM.
I set VM static IP 192.168.0.205.
It turns out dynamic IP - 192.168.0.55
On host:
I've recently switched from Linux Mint to Debian Squeeze because I wanted a more 'pure' Linux distro. I had some trouble with the built-in IPv6 support, but I've got most everything ironed out. The only problem I have now concerns SFTP-ing over the internet to my home server through Nautilus (v2.30.1). The server has a dynamic IP address so I'm using dyndns so that I can still access my server from anywhere. However, when I tell Nautilus to connect to an SSH server (and I know the information I've given Nautilus is correct), it opens an error window saying that the host could not be found.
I feel like this is just another IPv6 hostname-resolution problem which just comes with Squeeze, but I haven't found a way around it. I also get the same issue when trying to use gvfs-mount to virtually mount my server's file system through SSH...
I recently installed a new Ubuntu PC that runs iptables and PSAD. I had the same script on another Ubuntu PC, but when I copied the script onto the new PC, I got this error. I don't remember where I found the tutorial for this, all I know is that this is the script (Edited for my usage):
Code:
#!/bin/bash
# Script to check important ports on remote webserver
# Copyright (c) 2009 blogama.org
# This script is licensed under GNU GPL version 2.0 or above
[code]....
Safe.txt contains:
Code:
127.0.0.1
192.168.1.8
192.168.1.1
98.200.58.73
192.168.0.1
And the error message generated is:
Code:
root@NETWORK-SERVER:/var/ddosprotect# ./ipblock.sh
' not found.4.4: host/network `127.0.0.1
Try `iptables -h' or 'iptables --help' for more information.
' not found.4.4: host/network `192.168.1.8
[code]....
I'm trying to use a flash drive to try to repair the Intrepid installation on my netbook.
when I drop to a terminal and try "sudo apt-get update" i get
Code:
sudo: unable to resolve host ubuntu
E: The method driver /usr/lib/apt/methods/https could not be found
E: The method driver /usr/lib/apt/methods/https could not be found
I have set up an ubuntu server running PPTP Server for VPN connections. I can successfully connect from a laptop within the LAN, but taking that same machine to an internet connection and trying to connect back in does not work. The only difference is that when I connect from within the network, I am obviously using the server's LAN (non-routable) address, and when I am connecting from outside the network (from Verizon Business DSL ), I am using the Comcast connection's static IP address.
I have a static IP address on a Comcast Business Class internet connection. Router is set to forward pptp and GRE ports.
Works:
VPN Server <- Laptop
iPhone -> Internet -> Router -> VPN Server
Does not work:
Laptop -> Internet -> Router -> VPN Server
Here is the weird thing. I have an iPhone that connects flawlessly every time through it's AT&T data connection. The laptop however, gets to "verifying username and password", and then returns error 619. It seems that there is an issue only when going through the router using the PPTP client built into MS windows.
I have two servers, one has an empty / and the other has a subdirectory with a large number (4 gig) with many, many files. I need a way to transfer the files en masse from the server with the large number of files to the one that is essentially blank.I don't have space on the used host to simply gzip all the files. I've googled this and see that there may be some combination of tar and/or gzip that will let me do this with some sort of redirection.
I really need and example line of how this can be accomplished. If my explanation seems rather sparse, I can supply more details.
Bit of an odd one, this. I've migrated a website from my old server to a new machine. Both servers run Ubuntu + Apache2. Both only serve a single site, apart from the default site.I've flipped the domain name to the new IP address.The trouble is that after moving the virtual host config over into sites-available, with the necessary link in sites-enabled, Apache attempts to serve from the default web root (/var/www) rather than the actual site content (in /var/www/technology). So for example, an attempt to browse.
View 1 Replies View RelatedI'm trying to get Synergy up and running between my Windows 7 (server) host and my Arch Linux (client) host. In rare exception, synergy works perfect on my windows host, however every time I try and run Synergy on my linux machine I get the following error in messages.log:
[code]...
I'm running Arch with a barebones Xorg install and SLiM with LXDE. I'm not sure what in the world is causing the problem and haven't been able to find anything of substance in a search.
I'm trying to ssh from my laptop to my desktop (both fedora 14) over a local network. I can ping my desktop and get responses, but if I ssh to it, I receive
ssh: connect to host 192.168.100.xxx port 22: No route to host
I can ssh from the desktop to itself.
