Networking :: Connect The Cross Over NIC Thes Rest Of The Network Can't See The Server?
Mar 18, 2010
I have a server with 4 NICs in it. for HA and speed I have bonded 3 of them together (eth0-eth2) in my wonderful unmanaged 10/100 switch. 192.168.1.3. eth3 is cross connected via the patch panel to another system so that file transfers can be a 1000/FULL. I have created a 172.1.1.0 network between the 2 hosts. Problem is that once i connect the cross over NIC thes rest of the network cant see the server. I am sure it is a routing problem and added ip route add 172.1.1.0/24 dev eth3 172.1.1.0/24 dev eth3 proto kernel scope link src 172.1.1.0 192.168.1.2/24 dev bond0 proto kernel scope link src 192.168.1.2 169.254.0.0/16 dev eth3 scope link metric 1005 169.254.0.0/16 dev bond0 scope link metric 1006 default via 192.168.1.2 dev bond0
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Dec 21, 2010
How can connect two PCs that both of them have ubuntu by cross cable?
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May 3, 2010
I have two laptops running fedora 9 (32-bit and 64-bit on each system) and I want to connect them together for sharing files. For this I have a cross cable i.e.,a simple cable that is usually used to connect a PC with ADSL modem.
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Mar 11, 2010
I am looking to find a program similar to nm-applet which can run on NetBSD. So far, I have found wpa_supplicant and wpa_gui. Am I on the right tracks? Basically, I want to scan for wireless networks and connect to them. When I start wpa_gui, I get "Could not find status from wpa_supplicant".
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Sep 6, 2010
I am trying to connect to a nfs server on my local network ( the server is a fedora 12 box ) using slackware 13.1 but I am having some problems. First of all I am sure that the server is configured ok and my desktop can ping the server but when I try :
mount -t nfs 10.0.0.1:/home/usr/file /home/usr/tmp I get the following error : mount.nfs: No route to host
And when I try to rpcinfo -p 10.0.0.1 I get the error :
rpcinfo: can't contact portmapper: RPC: Remote system error - No route to host
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Jan 29, 2010
Okay so my school has a Z: drive which is the network drive that holds all of the students folders. I need to connect to it so that I can complete projects and place them in my server drive. How would I go about doing that?
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Nov 18, 2010
I just recently bought a WinStar USB LPR Network Print Server so that I could connect my printer to my network so all the machines on my network could print, and everything would be OS independent. The problem I'm having is that I can't get CUPS to connect to the printer. It either never prints anything, saying that the printer is not connected, or saying that LPR is spooling the job, but it never completes. I've been configuring it as a network printer in CUPS, and trying all the different configuration options to no avail. The print server is located on http://192.168.1.103 and is pingable. The print server I have is this one:
WinStars Networking USB LPR Print Server
What is the correct way to set up a print server like this so I can print to it?
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Oct 5, 2010
i'm experiencing some weird behaviour: I have a server running ubuntu 10.04 and two Apple laptops in my home network. Sometimes after booting up the server doesn't connect to the wireless network, but instead "kills" the connection of the laptops. (The network then isn't available for about two minutes - it's showing but it can't connect) On the server the network interface is up, but not associated.
Sometimes the interface isn't configured properly (iwconfig isn't showing an entry) - but in this case the behaviour obviously isn't showing. some information about my system:
Ubuntu Version: Server 10.04x64
Wireless Card: Netgear WG311v3 with marvell chipset
Driver: ndiswrapper+mrv8335x64
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Aug 9, 2010
I have one pc on which I have installed slackware and samba (fixed IP, mask 255.255.255.0) I have another PC (also XP) which also has fixed IP running XP, and I can connect that to the slackware server easily My third PC connects to the internet and gets its IP address from the Cisco router(?) that provides the IP and mask on boot up.
I tried changing the IP and Mask on the slackware server to match the internet PC (which uses a mask 255.255.254.0) but the PC mask and IP changed on the internet PC I want the PC that connects to the internet to also be able to connect to the slackware server, but I see no need for the slackware server to also connect to the internet - I will mainly use it as a file server When I worked for another company I think the IT department talked about having 2 network cards in the PC that connects to the internet
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Sep 18, 2010
I have two desktop one have rhel 5 and other window xp i am trying to connect both with cross over cable.IP for windows system is 192.168.0.1 IP for linux system is 192.168.0.2 I am able to ping my linux system from windows but unable to ping windows system from linux.
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Aug 8, 2011
I can connect to the internet through wifi, but I cannot connect to anything on my network. I have a printer and a NAS, so I would really like for this to work again. I have a dell laptop with a Broadcom card.
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Jul 1, 2010
I recently fixed an annoying problem and I thought it would be nice to share my solution here. The problem was that after a cycle of suspend/resume, Network Manager would only auto-connect to the same network as it was previously connected to. So, for example, if I suspended my laptop at home, and then I went to school and resumed it, it would try to connect to the home network, and then just give up. It would not connect to the school network unless I explicitly told it to.irst, I'll describe the fix. If you're having this problem, you can this. Copy the following:
Code:
#!/bin/sh
case "$1" in
[code]....
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Jun 14, 2010
I have used ubuntu in the past but had a lot of hardware issues with it and unfortunately moved back to windows (( BUT i have tried Ubuntu again and all seems to work great except wifi My wifi connection is sort of working because when i run SUDO IWLIST SCAN it does pull up all available networks. But in the network manager icon on the panel i left click but i see no networks and can't connect to anything. I WOULD LOVE TO keep Ubuntu and use it permanently but I must get wifi working or else this won't be possible.
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Jul 10, 2010
I recently put Linux on a Thinkpad T40 I got. The wireless card works out of the box--I can see nearby networks. However, I can't connect to mine. network-manager would try (spin spin spin), fail, ask for the password, and then go back to the beginning and repeat indefinitely. This happened to me on a different computer, and on that one all I had to do was use wicd instead of network-manager. So I installed wicd, but it's not working either--it hangs at "Obtaining IP address".
I've found many, many threads with people who had the same problem, but none of their fixed worked for me.
I also tried to get wifi going manually, using this guide, but that didn't work.
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May 4, 2010
I've got a request from one of my company's subsidiaries to block all incoming and outgoing mail for a group of users. I've read up some guides on access.db and I know how to do that, but now they want to allow these users to receive emails from a few select domains, and block the rest. To summarize:
1) Block all incoming and outgoing email to users in team A, except mail from [URL]
2) All other users can receive and send mail from/to any domain.
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Jun 28, 2010
I have no idea why, but my website times out as soon as you try to use the cart.(which invokes SSL)It seems to have happened after I went live from testing, but I checked my configurations, and I can't see anything awry in my apache2 confs.Has anyone run into this before?I don't know how or why this happened or how to even begin fxing it
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Nov 21, 2008
I'm unable to connect to a particular home wireless network under Fedora 9, although I can connect to it using WinXP on the same machine. My Fedora installation is able to connect to my college's unsecured wireless network, so it's not a driver issue I think.It seems to be an authorisation issue, as I'll describe below, but there's one other thing that's bothering me. The SSID for the network I have problems with is for some reason not listed in Network Manager's drop-down list, nor is it in the output of iwlist wlan0 scan. But I'm pretty sure it's not a "hidden" network - I don't know exactly how those work, but I helped the owner of the wifi network in setting it up, and don't remember doing anything that would make it hidden. As far as I can remember, Windows found the network automatically without having to be told the SSID. What's the best way to confirm whether it's a hidden network or not?
Anyway, I try to connect by selecting connect to other wireless network in Network Manager, and entering the SSID. As far as I can tell from the error messages below, the machine does contact the network and attempt to connect, but I'm not authorising myself properly. That may be a completely wrong diagnosis, but hopefully someone can see from the below info whether it's correct or not.I'm not sure which option to use for "Wireless Security": at the time we set up the network, it gave us a Hex WEP key of 26 characters, which is 104 bits. But none of the options in Network Manager's list match that. Here are the options it has, and the error message I get with each one:None - if I select this, it fails to connect, with no error message.
WEP 128-bit passphrase - if I select this and attempt to use my 26-character WEP key, it brings up a new dialog, saying "Passwords or encryption keys are required to access the wireless network [SSID]." It has a drop-down box labelled "Wireless Security", but this time the only option is "None", and the connect button is disabled, I can only click cancel.
WEP 40/128-bit hex - as above.
WEP 40/128-bit ASCII - The connect button is disabled when I try to use the WEP key, as the string is too long. Despite the fact that it says 40/128-bit, it actually accepts 5 and 13-character strings (40 or 104-bit). Since I've got a 104-bit hex key, I tried converting it to ASCII, but it consists of mostly unprintable characters, so I'm not sure there's any way to actually enter it into the textfield. I might have done something wrong here, so I've put my code below to see if anyone can point out a mistake.
LEAP - requires a username, not applicable here I think. Windows doesn't need one, and we don't have one from when we set the network up.Dynamic WEP (802.1x) - requires username, private key and various other things, all N/A WPA & WPA2 Personal - Brings up a dialog with the same text as for "128-bit passphrase", but this time "WPA & WPA2 Personal" is the only option in the drop-down list, instead of "None". It asks for a password, so I just enter the hex key again - now it asks for the password for the Gnome Default Keyring, which I don't think I've ever set up. Don't know if I can go any further with that, but my understanding is that since we were given a WEP key when we set up the network, WPA will be N/A.WPA & WPA2 Enterprise - as Dynamic WEP. N/A.Hopefully that's enough info that someone can help diagnose the problem. Some of the behaviour of Network Manager described above doesn't make sense to me, and I'm wondering if it's buggy.
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Apr 23, 2011
I am using Intel Xeon X 3440 processor. The processor has 11 frequency steps to chose from. I have used cpufreq-selector for choosing a frequency and it worked fine. But, all of a sudden it stops working out of the 11 steps i can change to only 2 frequencies and rest fail to work. I am clueless as to why it stopped working suddenly.
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Mar 27, 2010
I wanted to know how can I cross compile SMS SERVER TOOL for an embedded computer and make just one binary file for it or how can I change all of its default files places like its demon and object file and gather all of them to one directory to execute and use and run.let me explain it better for you : I have an embedded computer with Linux OS that its file system is read only and I can not add any file to /usr /lib and ..... and I can just mount a SD memory card to it and copy all of my programs to it and run them from there as you understand I have two choices to choose, first make one big binary file for each program that I am doing it now and it is not a suitable solution and the second is finding the way to change default place of shared object file of my program.now you tell me what can I do to solving this problem.
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Dec 7, 2010
I cannot connect to my server via ssh from outside my office network. Ssh from inside the network poses no problem. From outside the network, I can ping the server so I assume that there is no problem with the IP address. I am quite new to linux networking so pls forgive me if this is a stupid question. Is there any changes I need to make in the sshd_config file?
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Feb 14, 2010
I just got connected to Charter Cable Internet service a few days ago and I'm having a weird problem with my home network. Prior to this my network worked fine. On my network I have a desktop running Ubuntu 9.10/64 and Virtualbox with WinXP installed, an HTPC with Ubuntu 9.10/32 installed and a laptop dual booted with Ubuntu 9.10/32 and WinXP. The desktop and HTPC are hard wired to a wireless router and the laptop is wireless. The cable modem is hard wired to the router. I have samba installed and UFW is disabled. The problem is: with the cable modem turned off or on standby, all machines connect to each other and can transfer files, etc just fine but when I activate the cable modem all of the machines can connect to the Internet but the machines running Ubuntu can't connect to each other on the home network. If I boot the laptop into Windows, it can connect to the Linux machines just fine but if I boot it into Linux, it won't connect to the Linux machines but it can connect to the Internet and as far as the desktop, Ubuntu won't connect to the network but Windows running in the Virtualbox with bridged networking can connect to all of the machines.
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Feb 19, 2010
I need to install Yum, but does not connect to the server.
Code:
Resolving package dependencies...
Here is the list of Zypper
Code:
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May 22, 2010
I'm having a real problem with intermittent ssh disconnections?It's the same thing regardless if it's over ethernet or wireless, and nfs shares don't have any problems at all.
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Aug 4, 2010
I have an openSUSE 11.2 and I was trying to connect to a FTP server from Dolphin application but it didn't work. (I used ftp://<IP ADDRESS> in the address field)
From CLI or using FileZilla I can connect to that server.
What could be the cause of this strange behavior?
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Jan 2, 2011
Upgraded two machines to 11.3 in the past 2 weeks. NFS is broken on both, in different ways. The problem I'll mention here is that the nfs server is running, but clients can't connect.
The server is running:
tinderbox:~ # /etc/init.d/nfsserver status
Checking for kernel based NFS server: idmapd running
mounted running
statd running
nfsd running
It has a valid export list:
tinderbox:~ # showmount -e
Export list for tinderbox:
/usr/local/share/common 192.168.1.0/24
The export exists:
tinderbox:~ # ls -lR /usr/local/share/
/usr/local/share/:
total 4
drwxrwxrwx 2 root root 4096 Jan 2 12:10 common
/usr/local/share/common:
total 0
-rw-r--r-- 1 root root 0 Jan 2 12:10 test.txt
But attempts to mount the export are unsuccessful, both from the local machine:
tinderbox:~ # mount.nfs 192.169.1.200:/usr/local/share/common /mnt -v
mount.nfs: timeout set for Sun Jan 2 12:14:19 2011
mount.nfs: trying text-based options 'addr=192.169.1.200,vers=4,clientaddr=192.168.1.200'
mount.nfs: mount(2): Connection timed out
mount.nfs: Connection timed out
...and from an OpenSUSE 11.0 machine.
moira:~ # mount.nfs 192.169.1.200:/usr/local/share/common /mnt/tmp/ -v
mount.nfs: timeout set for Sun Jan 2 11:52:17 2011
mount.nfs: text-based options: 'addr=192.169.1.200'
mount.nfs: Unable to connect to 192.169.1.200:111, errno 110 (Connection timed out)
mount.nfs: mount to NFS server 'rpcbind' failed: timed out, giving up
I've had NFS running on my local network for over a decade, and never had problems like this before.
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May 22, 2011
until 2 weeks ago I had o.S11.3 on both my Siemens and Asus laptops. I have installed NX No Machine. ( I know it's not open source,I am using the free version). With commandline ( root) /usr/NX/bin/nxclient I was able to connect to the other machines. I got Qt: Locales not supported on X server, the NX menu popped up and I was able to connect by inserting resp codes. After fresh install of o.S.11.4 on the ASUS the commandline (root) answers:
xlib: connection to":0.0" refused by server
xlib: No protocol specified
nxclient: cannot connect to X server:0.0
The ASUS can still be reached from the other machines (one with o.S.11.3,the third one with o.S.11.2 ) SSH ( Lan)connections are all working forth and back between the machines, even to and from Win XP, however only from Win 7 on the ASUS, but that's a Win7problem. Comparing the installed xorg-x11- server-extra : on o.S. 11.3 Additional X servers ( Xmdx,Xephir,Xnest,Xvfb ) ,on o.S.11.4 the Xvfb is missing, might that be the reason?
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Jun 24, 2010
Does anyone know, or have any experience with, what the best way to set a network interface on a linux server to be up - so that virtual machines can bridge through the physical interface, but not allow anyone on a network to connect to the server itself? Thank you
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Feb 22, 2011
I have a Ubuntu server (10.10) setup with apache and is being port NAT'ted via firewall from outside to the webserver.I am able to access the webserver from inside LAN but not from outside. NATs are working fine because I can see the traffic come through on tcpdump but the webserver will not respond to the request from outside ip address.Here are the tcpdumps.
10:11:58.939005 IP 12.xxx.xxx.6.10146 > 172.16.2.100.80: Flags [S], seq 3098920688, win 65535, options [mss 1380,nop,nop,nop,nop], length 0
10:12:01.898852 IP 12.xxx.xxx.6.10146 > 172.16.2.100.80: Flags [S], seq 3098920688,
[code]....
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May 20, 2009
I have the following problem:I have to networks in remote places.I have an opnvpn client in one network that connects to the the router (openvpn server).My question is,can i connect the network where the openvpn client is,throught the computer with the client to the other network.If yes,how? (please make it an idiot proof anwser because i have limited knowledge about iptables). I was thinking like forwarding (the router in the network with the openvpn client is also firewalling with iptables) the request of the ip class of the openvpn network to the computer with the client,which masquarades the interface
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Jul 13, 2010
I am running RHEL 4 with Linux version 2.6.9-89.0.16.ELsmp on a machine that was recently moved to a new location (new network). It now has an ip XXX.XX.196.17. Since the move my machine does cannot connect to any machines outside of XXX.XX.196 subnet. Cannot connect to any internet sites. However it see all the machines through ssh connections.
For example:
(Internet sites)
ping www.google.com
ping: unknown host www.google.com
(Web server on the same (XXX.XX.196.X) LAN)
ping cfd.XXX.XXX.edu
PING cfd.XXX.XXX.edu (XXX.XX.196.138) 56(84) bytes of data.
64 bytes from X.X.196.138: icmp_seq=0 ttl=64 time=1.08 ms
64 bytes from X.X.196.138: icmp_seq=1 ttl=64 time=0.118 ms
4 packets transmitted, 4 received, 0% packet loss, time 3000ms
(Machine on a different LAN)
ping XXX.XX.82.52
PING X.X.82.52 (157.182.82.52) 56(84) bytes of data.
From X.X.196.2 icmp_seq=25 Packet filtered
From X.X.196.2 icmp_seq=26 Packet filtered
39 packets transmitted, 0 received, +11 errors, 100% packet loss, time 38007ms
(SSH to machine in the same building but on a different LAN)
ssh jaggu@XXX.XX.82.52
jaggu@XXX.XX.82.52's password:
This has all of my network guys stumped. They made sure that the http port is open on the XXX.XX.196.X router/firewall. Still the same problem. I am a novice trying to manage a linux cluster.
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