Ubuntu :: Can't Ping Boxes On Windows Network

Jul 6, 2011

I'm setting up an Ubuntu-based kiosk for my organization, and I can't seem to ping it by its hostname. The network is an Active Directory domain.

I tried editing /etc/dhcp3/dhclient.conf (I filled in the hostname where it said <hostname>), but no dice.

I also tried editing /etc/network/interfaces (the machine authenticates via DHCP but its network configuration is manually specified -- can't have users messing with NetworkManager):

Code:
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp
hostname <the computer's hostname here>

Finally, I tried joining it to the domain using likewise-open, and while it shows up in Active Directory, I still can't ping it.

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Networking :: Server Can't Ping Other Boxes On Private Network

Jul 27, 2011

I run a server that is connected to several other boxes in a private network (192.168.0.0). I have had no problems previously, but upon a reinstall of Debian squeeze I have no connectivity to the private network: a ping of other addresses on that network fail. Ping and connection to outside world is fine. This box is configured similarly to another on this private network which connects successfully. I have quadruple-checked all my basic information. I post my ifconfig below of the malfunctioning device, then the ifconfig for equivalent nic on a box connected succesfully to the private network.

Questions:

1.Could it be a cable problem? (I don't see how since the cables have not been changed I do not believe since my reinstallation).

2. What about the difference in the last lines of eth1 below and eth2 of the successful box. Is it significant that the bad eth1 reads Memory:fc3a0000-fc3c0000

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Networking :: Ping Connection To Router OK But No Ping Between Boxes In LAN

May 26, 2010

I 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.

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Ubuntu Networking :: Can Browse Windows Network / But Not Other Linux Boxes

Mar 29, 2010

I noticed tonight when I go to Places, Network, it will bring up an icon for Windows Network, and I can drill down to my Windows box. But I can't see the other Linux box (a laptop running Kubuntu), and the same behavior occurs on the laptop when trying to view the Linux desktop. The laptop is connected wirelessly, if that makes a difference. Each box can ping the others, but I don't yet know how to browse one Linux box from the other Linux box.

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General :: Windows 7 Network : Can't Ping System Box Using Hostname / Fix It?

Sep 17, 2010

First off I should say that I am a total Linux and Networking Noob. I have used Windows all my life, but I am now trying to get into linux so I have set up an old PC with Fedora.

Currently I only have the Linux Box and a Windows 7 Box and they are both connected to my broadband router. I have set them up with static IP addresses in the router and they can both ping each other by IP address but not hostname. I would like to be able to use hostnames to access each box (e.g. for SSH access and File Sharing). My question is basically how can I do this, what are the options and which is recommended for a small home network?

So far I have been able to set up the linux box to be able to ping the Windows box by hostname by editing the hosts file. Is this the right thing to do? Should I just do this on the Windows box too?

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Networking :: Ping Windows Machine Connected To An Open Network?

Jul 9, 2011

I am trying to ping my Windows machine connected to an open network (I'm at a internet caf) from my linux VM (also connected to the same network with a usb adapter), but I'm obtaining this output:

# ping 10.23.47.12
PING 10.23.47.12 (10.23.47.12) 56(84) bytes of data.
From 10.128.128.1 icmp_seq=1 Packet filtered
From 10.128.128.1 icmp_seq=2 Packet filtered

With high probability host 10.128.128.1 is a firewall or some router with packet filtering mechanism; but I don't understand how it can be possible to implement this kind of solution, with what kind of software or hardware? I also tried a nmap scan to my Windows machine but it returns me scan results from another host(the firewall or the router I suppose):

nmap -sS -O -P0 10.23.47.12
Starting Nmap 5.51 ( http://nmap.org ) at 2011-07-09 15:46 CDT
Nmap scan report for 10.23.47.12
Host is up (0.097s latency).
All 1000 scanned ports on 10.23.47.12 are filtered

[Code]...

So my questions is, how is technically possible to implement this kind of restriction within hosts connected on the same network? It's the first time I see this kind of configuration.

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OpenSUSE Network :: Nmblookup Resolves But Cannot Ping Netbios Names Or Ping FQDN

Feb 23, 2011

This applies to my 2 opensuse PC's, my Windows PC is fine.I can ping a hostname, say "PC1" but I can not ping PC1.domain.local (even the host PC can not ping it's own FQDN). When I ping just the hostname the ping stats even list the FQDN.Onto the next issue, since all my PC's, have the domain prefix domain.local, my Synology can not. I can ping it's IP and that is it. I can resolve it's name with nmblookup just fine tho and that is what is killing me. How is this not resolving.Even weirder, I can browse to "Synology" in Network Servers under places on the slab.

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Ubuntu :: Share Files With Windows Boxes?

Mar 5, 2011

I am having trouble sharing files between Ubu and Win boxes. We have seval boxes hooked up to the same router. XP and Vista boxes are part of the same workgroup (lets call it FOO). No domain. It is a simple home network. Each Win box has its own name. Win boxes can see each other (by clicking Network icon from control panel). Shared resources can be accessed by providing user name and password. Now I need to make Maverick box a part of the the same workgroup. All group members should be able to access Maverick's shared recourse by providing user name and password and vice versa.

I installed samba (is that what I need?), but couldn't get things working yet. Official docs aren't very clear. What is the server name and domain? Win boxes don't need any of that. I can just click network icon and go into any computer I want. What are the steps to setup Ubu box similarly? Samba docs say edit smb.conf file. I have 2 in my box :

/usr/share/samba/smb.conf
/etc/samba/smb.conf

Which one is for editing. Where do I put FOO (our work-group name)? How to set permissions?

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Networking :: Cannot Ping With Command - Ping IP - Address But Can Ping With - Ping IP -I Eth0

Jul 15, 2011

I 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.

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Ubuntu Networking :: Network Not Visible In Dialogue Boxes

Oct 12, 2010

I've set up Samba under Ubuntu for windows SMB file sharing (currently unauthenticated but soon to be backed off against A.D.) This is great within Windows where l folders are available as mounted in all applications but from my Ubuntu desktop and Ubuntu laptops, we can only access network folders and files from the File browsers and bookmarks one finds in the "Places" menu. Our issue is that most (but not all) dialogue boxes don't have any options for viewing non-local files and folders. i.e. when I'm in my web browser and I go to upload a file from our local network file server to an internet location, the "Open" dialogue box cannot see any of our local network locations.

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Networking :: Lost Network Only Between Two Boxes

Oct 23, 2010

I can't think of any obvious reason. I have two Ubuntu 10.04 machines. Each has a two disc RAID array for redundancy. Both are on my class C network (192.168.1.3 and 192.168.1.5). Both can access internet through router and I can "reach" each with a windows laptop (I can ping, login via SSH, reach webmin, SAMBA, etc). However, all the sudden, I cannot reach either linux box from the other linux box. It fails "both ways," meaning I can neither ping, login via SSH, use a SAMBA resource or in any way see the "other" linux box from one. This seemed to occur about two weeks ago (maybe after an update?). I've been using Unison to sync the RAID arrays - but not, I cannot sync at all. The only thing I could think of is to check hosts.deny (and allow) which are distribution default (unchanged)...

If I traceroute to the router, I get "1 XXXXX (192.168.1.1) 0.543 ms 1.217 ms 1.204 ms." However, if I try it to the other linux box, I get "3001.294 ms !H 2001.280 ms !H 3001.264 ms !H" which evidently means host unreachable. So it can get to the router (which has the windows box which can see both linux boxes). I just can't think of any reason why/how this could happen? Not sure how what is wrong with hosts file (I have made no changes and it accepts ping/ssh, etc from windows machine). Any ideas would be greatly appreciated.

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Ubuntu Servers :: Samba - Box Will Not Open On Windows Boxes?

Feb 19, 2010

I've been trying to fix this problem for over a month, on irc chats and searching google for forum threads, all leading me in different directions all bringing me nowhere. In trying to connect from my Windows machine I get the following error:Quote: Windows cannot access \ubuntu

Check the spelling of the name. Otherwise, there might be a problem with your network. To try to identify and resolve the network problems, click Diagnose. Well, clicking "Diagnose" is a huge waste of time.I've paste binned by /etc/samba/smb.conf file and it can be found below -[URL]... Also, when I am on the Ubuntu machine attempting to browse the machines on the network and go to Places >> Network >> Windows Network I get the following error: Quote: Unable to mount location Failed to retreive share list from server

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Slackware :: Failing To SSH Between Boxes On Same Wireless Network

Feb 7, 2011

I've got a Linksys WRT54G router with the latest firmware. I've got an HP laptop connecting wirelessly and my main box connecting wirelessly with a Linksys WMP54G card. (As an aside, I used to have another box too with the same wireless card). Both are set up with a static IP. Both can access the Internet just fine. The router is on the main floor. My main box is in the basement. Both boxes are running fully patched versions of Slackware64 13.1. sshd is running on both.

I like to ssh into the other box when there's a security update or to copy a file from one computer to the other, etc. The problem is that I can't do that all the time. Even if the laptop is connected to the network and accessing the Internet, on my main box ssh will still "say ssh: connect to host ***** port 22: No route to host". It is my understanding that if I ssh in, it is accessing the other computer directly and not going through the router. What would cause this? Even if I bring the laptop within four feet of my computer, it still can't connect.

There doesn't seem to be a rhyme or reason to when it will connect and when it wont. Sometimes I can access it just fine then about five minutes later I can't.

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Ubuntu :: Active Package For Scanning Windows Boxes Won't Boot USB

Apr 29, 2010

I'd like to burn a Live CD with clamav as an active package for scanning Windows boxes that won't boot USB.

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OpenSUSE Network :: File Sharing Between Two SuSE Boxes

Apr 29, 2010

I want to share files between my desktop box and my laptop either by my mains-LAN or by ethernet cable and cannot find anything on the forum to point me in the right direction. There is plenty of information to help with the installation of Apache/LAMP and the like. But is this what I need? Will I need to create logon IDs to the desktop to share files (and even the printer?).

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CentOS 5 Networking :: Boxes Appear To Be Limited At ~10kb/s When Connecting To Any FTP Server Outside Of Our Network

Jul 13, 2010

I'm having a bizarre problem with FTP transfers from my CentOS 5.3 boxes, All of my CentOS boxes appear to be limited at ~10kb/s when connecting to any FTP server outside of our network. We have no network infrastructure which would cause this, however when I use a windows based machine it is able to connect fine.

I took my laptop running Vista, and rebooted it onto a CentOS 5.3 LiveCD, and same issue.

I have checked our iptables, cleared the rules, removed the kernel modules, checked CBQ/TC it looks like nothing is limiting this. Also, other protocols work fine. Both the windows and linux boxes used passive transfers for it.

Is there anything other than iptables/CBQ which would be on a out of the box install of CentOS I should check? Is there any kernel settings for NAT connections which may cause this?

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Software :: Create A Network Logical Volume Based On The Individual HDs And Visible To All Boxes?

Aug 11, 2010

i've been an intermediate-level linux user for some years, and now i'm supposed to set up and manage a small network for our research group. we have 5 linux boxes with ubuntu 10.04 (actually i'm installing everything we need in one box and will attempt to clone the others with clonezilla). i've 2 questions:

1) i'd like to manage all user accounts from one pc (server? so to say), so that every user can log in any of the 5 machines with the same passwd etc. what is the best/easiest/most stable application/protocol to manage this?

2) is it possible to create a network logical volume, based on the individual HDs and visible to all boxes? something like a RAID0 over ethernet?

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OpenSUSE Network :: Can't Ssh Remote Hosts / Can't Ping Any Machines Outside Local Area Network?

Aug 29, 2010

I just installed open Suse 11.3, and I cannot SSH my school. Upon further investigation I could not even ping any machines outside my local area network. Ironically I could nmap machines outside my local area network.

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OpenSUSE Network :: Unable To Ping The Default Gateway When Using Custom Settings - Unreachable Network

Jul 17, 2011

I installed openSUSE on one of my work system. The network port wasn't working when I was installing, but works fine now (checked in Windows). But for some reason, I am not able to configure the network. I used both Dynamic and Static IPs (both work fine in Windows) but still no go. I am using Yast Control Center for this purpose. I can't even ping the default gateway when I am using custom settings. When I use dynamic settings, it says Unreachable Network.

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OpenSUSE Network :: Weired Ping Problems In Working Network?

Feb 13, 2011

I'm new to SuSe and lateley I was trying to establish a Network, when some weired problems occured. I was able to establish the network and i have connection to the internet. The suse-machine is rechable by ping from all the other computers in the network. If I'm tryiing to ping the other computers from the suse-machine, nothing happens. The router responds without packet loss, but every other ping occurs in:

From 192.168.2.6: icmp_seq=2 Destination Host Unreachable
From 192.168.2.6: icmp_seq=3 Destination Host Unreachable
From 192.168.2.6: icmp_seq=4 Destination Host Unreachable
From 192.168.2.6: icmp_seq=5 Destination Host Unreachable

I've been searching for some ideas to solve this problem but couldn't find any.

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Networking :: Streaming Audio On Mandriva Box On Wired Connection Crashes Wireless Boxes On Network

Jan 19, 2009

I have a Mandriva linux box connected by cable to my router. When I stream audio using this box it crashes all the wireless computers on my network. There is no effect on wired computers. All but the one computer are windows (xp or vista). The affected wireless computers are not able to even find my wireless network. I have to reboot the router to get them online.

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Mar 6, 2010

I was recently using Xubuntu for awhile, and I really enjoyed the default color scheme it had, I was wondering if anyone had the colors in HTML that Xubuntu uses?

I'm looking for the "Background & Text" colors for Windows, Input Boxes, Selected Items, & Tooltips and then I was just going to input them under "Customize Themes"

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Ubuntu Networking :: Can't Ping Outside Of Network

Apr 30, 2011

I can ping the router, but I cannot ping anything outside of the network. The ping just sits there and eventually times out, no error message. I cannot download updates and it is the only box inside the network having any issues accessing the internet. I am running 10.10 server. I can get a list of packages on the update server, but not download them, it appears to be in an incoming issue. I'm using a motorola Netopia router in bridge mode with a netgear SRXN3205 as a router. Again every other system can download fine. I have tried running on one nic, no help dhcp, static again does nothing. I can pulls host [URL].. and I get

[code]...

It may be worth noting that I set the box up at home on a dlink router and it worked fine, however I am confused why it is the only system on the network having these issues every other box can ping just fine.

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Ubuntu Networking :: Can't Ping Outside Network

Jul 14, 2011

i have problem ubuntu server network! internet works but #cant ping [URL]... and outside ip?

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Ubuntu Networking :: Cannot Ping/network To Host On 2nd Nic

Aug 11, 2010

I have a somewhat complicated network setup that I am testing on an internal network. I have the following route setup:

PC Client (192.168.2.100) --> Router (192.168.2.1) --> DSLAM (on our internal network) --> PPPOE Server (192.168.9.1) on Linux Ubuntu 8.04 on interface card eth2.

On the same Linux Ubuntu Machine on interface card eth1 (static IP 192.168.5.100), I have an Asterisk SIP server plugged into it. SIP Server = 192.168.5.101 (static) I need the PC client (192.168.2.100) to register via SIP soft phone to register on the SIP server (192.168.5.101). From the PC client I can ping as far as the eth1 interface (192.168.5.100)...but cannot ping the SIP Server (.101).

From the SIP server (192.156.5.101)...I can ping 192.168.5.100, I can ping 169.254.5.228 (Eth2:avahi), but not sure what that is. I cannot ping the pppoe default gateway (192.168.9.1), which I think you cannot anyway. No firewalls are running. My IPtables I cleaned out totally. I think it might be as simple as a route add, but I really have no clue. Tried building a virtual bridge using brctl LINUX betweeh eth1 and eth2, but that made things worse (could not ping anything after that)

Route table:

Destination Gateway Genmask Flags Metric Ref Use Iface
192.168.9.100 * 255.255.255.255 UH 0 0 0 ppp0
192.168.5.0 * 255.255.255.0 U 0 0 0 eth1

[code]...

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Ubuntu Networking :: Unable To Ping On Network

Jan 11, 2011

I have ubuntu 10.4 running on both my desktop and laptop. Both machines are connected to the router in wireless mode with Wifi.I can access internet from both machines without any issues, however I cant ping one machine from another. (and vice versa)

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Ubuntu Networking :: Unable To Ping To Windows?

Jan 8, 2010

I have am having some network troubles. I can't access my samba share. Trying to resolve this I realized I couldn't ping from ubuntu to windows. (default ubuntu.jaunty.server.x64)

Windows IP..192.168.002.021
Ubuntu IP...192.168.002.020
Laptop IP...192.168.002.031
Router IP...192.168.002.001

[Code]....

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Ubuntu :: Windows Can Ping But Not Telnet To New Machine?

Jun 13, 2011

I am setting up Ubuntu to be a firewall type device for a windows computer. (I later want to use Internet sharing or something like that.) The Ubuntu machine has two NICs. The internet NIC works but one light is always orange (even when there is no patch cable connected to it). I can access the Internet fine from the Ubuntu machine. I have a cross over cable connected to the second NIC. This cable connects to the Windows laptop. The windows laptop can ping the Ubuntu machine. But I cannot ping the windows machine from the Ubuntu machine. When I try to telnet to the Ubuntu machine from the Windows machine (over port 23 or 80) it says "cannot connect."

From the Ubuntu machine I issued this command:

# iptables -A INPUT -p tcp --dport 80 -j ACCEPT

I used ufw status and found that the firewall was not enabled on the Ubuntu machine. The default gateway of the second NIC is the IP address of the Windows machine. The default gateway of the Windows machine is the IP address of the Ubuntu machine.

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Ubuntu :: Cisco VPN - Cannot Ping Computers On Remote Network

May 21, 2010

I go to system > preferences > network connections in 9.10 and import a profile. The vpn seems to connect but I cannot ping computers on the remote network. When I attempt to ping, it seems it can see an ip (DNS must be working) but I can't actually ping the machine or rdp in. I've disabled my firewall and rebooted and that didn't help. What can I do?

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Ubuntu Networking :: Can't Ping Machines On Local Network

Jun 23, 2010

So in an effort to increase the speed of my netbook, I removed Ubuntu and installed Lubuntu on it. When I tried to mount my samba share as I normally do, I noticed it wasn't able to connect - mount error(113): No route to host. Sensing something fishy, I attempted to ping the machine (both by name and by IP) - Destination Host Unreachable.The machine I'm trying to connect to is using Ubuntu 10.04 x64. I attempted to ping the other way and it was able to connect to the netbook just fine. When the netbook was using Ubuntu, it was connecting fine. My iptables check out ok, but here is the output of iptables -nvL:

Code:

Chain INPUT (policy ACCEPT 213 packets, 21635 bytes)
pkts bytes target prot opt in out source destination
Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)

[code]....

Does lubuntu have some funky firewall built in to it that I can't find? (I've Googled for information on a Lubuntu default firewall and can't find any)

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