Networking :: CentOS 5.4 Small Three Computer Networking?
Jan 19, 2010
What I want to do is have two different networks connected with my switch. I want one computer to be the server and run dhcp with the ip address 10.3.2.1 and I want the other client machine to be 10.1.X.X. I want the X.X to be assigned automatically from DHCP running on the server. The subnet mask I believe should 255.255.255.0 for both networks. How can I get these two different networks to talk to each other when they are on completely different networks??
I want to create a small network of 3-5 computers. I want to have one computer as my server and have services like NFS, DHCP, NTP, etc. I want to connect it to 2-4 other clients that have the bare minimal installation of linux on them. I would like 1 client computer to have a static ip address and I would like another to receive a dynamic ip address from the server. How would I go about doing all of this without the assistance of GUI's? I want to be able to do all this with the ks.cfg and network config files.
I was having no problems (that I knew of) browsing the web since installing Ubuntu 10.10 a week or so ago. I was previously trialling Win7 as my customers will likely be using that in the future. Then I wanted to go to internode.on.net. Got the following: Quote: Firefox can't establish a connection to the server at internode.on.net. or Quote: Oops! Google Chrome could not connect to internode.on.net
As it was just after Christmas I thought it must be down, for upgrades or maintenance etc. I later tried to go to Freebsd.org; same error. I've been having a small number of other websites give the same error. I thought nothing of this until I tried it on my wife's macpro. I could log onto all the websites I wanted to and none gave any indication of having been down. Both boxes are on the same adsl connection. I still can't access internode or freebsd on 10.10 yet have been able to access every website on OSX. Now, I was only looking at them for info but am worried I won't be able to access something important. (so far everything I 'need' is working)
ping just drops out. edit: weirdest thing! I just retried and now can not emulate the problem for internode. freebsd still won't show. that is less than five minutes between problems and resolution! I hadn't even posted! But I still would like to have an idea of what is going on. Here is the ping error for freebsd: Quote:
And I'm currently working on a new CentOS 5 install I've made on a computer I've got.. So I'm now trying to get that computer to reach my home network through one of my other computers, which have got XP installed. I've configured the XP computer to act as a gateway from one network card to another, and It works with another XP pc, but no luck with my CentOS 5. I used this link [URL] And I configured the correct network card.
So.. the IP of the XP machine is 192.168.1.70, which I have set as a static. So that the CentOS will find it. And I've connected the (fully working) network cable correctly.
What do I have to do?
I have configured the CentOS to recieve an IP dynamically. (dhcp).. Might that be the problem? (well.. one of the problems.. I've tried to set it to static.. ...?)
Is there more to it than this? I mean when I'm working on communication through an XP machine... ?
I have a server in my house with webmin and virtualmin installed et i made a mistake.Ive created a virual server and ive change the lan ip adresse. 192.168.2.30 ive change it for 192.168.2.31.Now of course nothing work. Im not able to connect via ssh via another computer.So, on the server i write ifconfig and it tell me the adresse is 127.0.0.1 and no more adresse like 192.168.x.x.
I just moved into a new apartment and now connect via DHCP. Everything seems fine network-wise, except that when I'm at work I can't connect to the home box. (CentOS 5.3 x86_64) One thing I noticed is that I can't really determine my "true" IP address. What I mean is that it looks like my IP is 192.168.0.190, but when I use linuxdcpp, and enter a hub, I'm told my IP addr is actually something like 71.192.163.206. Here's some info:
I'd like to know if anybody knows if is there a any small hardware board (I think non i386 architecture, maybe mips or arm) board suitable for using for linux routing systems (routing features + iptables).For example an small board with at least two ethernet interfaces capable to run an update version of Linux.May be something similar to microtik routerboards, but to run Linux within.
i am trying to use a small application called toonel. its in jar format and it helps to compress traffic. i can run it succesfully but i cant seem to be able to get my applications e.g firefox to communicate with it!
normally in windows i just start the app, then set my browser proxy to 127.0.0.1:8080 which is where it listens for connections but so far in ubuntu i cant seem to be able to get it to work.
-I've got xubuntu 10.04 installed on an old laptop (Toshiba Tecra A4).
-On a little NAS i've got my video-files.
-Using wifi i can go to the smb-share on the NAS to open a video-file on my laptop. (kinda slow/laggy)
-I can also use the ftp-server build into the NAS and mount that on /media/ftp (using curlftpFS on the laptop)
According to what i have read about ftp/smb, FTP is faster! (haven't tested yet)The NAS has got a mt-daapd and twonky but i don't think i can find those in VLC or TOTEM... (? wonder if that would make things faster)
So I just changed my network card settings recently, and I'm now getting no response when I ping the broadcast address for them... the cards are all connected through a switch with IP addresses 192.168.0.x, broadcast 192.168.0.255... ifconfig on all of them shows UP BROADCAST RUNNING MULTICAST, but nobody responds to a broadcast packet. Any thoughts?
EDIT: Pinging each machine individually works fine.
I want to connect my linux laptop (Mandriva 2008.1 x86_64) to my windows small business server. My issue is that I am not sure what I can and can't do in terms of any windows config changes. Can linux (I assume using Samba) connect normally?
I have been using Trixbox CE for a couple of years and a client has asked me to setup a VOIP system with two phones and a couple of extensions. When he gets hit with a borage of phone calls I need to have the call that are behind the others to go the the next extension. I need redundancy if one Internet connection goes down and have the another kick in or failover. How does one configure Trixbox to failover to the other Internet connection and can someone give me a list of carriers in the Washington D.C area. Can someone point me in the right direction?
I just started setting up a linux box in the office...I have some experience with ssh commands but not setting up a linux system and stuff.The box is connected to our network but I have no clue how to make windows & osx talk with it. How can I go by doing that and also setting up an apache server to be able to connect through network. Right now I have apache/linux/mysql running it works when i go to localhost, but I would also like to let all the computers in office to access it. I would guess that will deal with virtual host which I know how to setup. I just need to setup an IP.
I have a small office network (about 30 machine) with linux gateway (6Mbps internet bandwidth). Every user get only 500Kbps bandwidth, and they use the internet very poor. The internet getting slow lately, and I noticed that there are huge amount of small packets (78 byte, 48 byte) coming to linux machines. My question is: How can I solve which machine(s) sending those small packets? Do you have any ideas with netstat command?
I set up a dhcp server in the lan and assigned static ips to two computers, computer A and B, according to their mac address. Everything was running fine. But when I turned off computer A, connected computer C to the network, and assigned computer A's static ip to computer C without changing dhcp setting. Computer C was able to access the internet. When I turned on computer A, dhcp couldn't assign an ip address to it, and computer C showed an error message of ip conflict and failed to use internet. I wonder if dhcp server is able to prevent other computer from using the same static ip that is already assigned to a computer according to its mac address.
I need straight forward directions on how to do this. I installed samba on ubuntu and I shared a number of ubuntu files. No luck.Xp can't see ubuntu and the reverse is also true. My searches just end up off on some tangents. Example, researching samba - I get the entire manual on samba - can't find the specifics I need within that document.
I'm not really a newbee in Linux but I am a newbee in networking. I have both a Ubuntu laptop and a Gentoo desktop computer. I have just bought me the MBR1000 Cradlepoint router and it works great with my Verizon USB 760 modem plugged in it. I can now send and receive email on my Ubuntu laptop. I like it.My Gentoo desktop computer is just sitting there with no Internet access because my Verizon modem is no longer plugged into it but plugged into the router instead. Only my laptop now has Internet access. The laptop has an integrated wireless card built in the MB but my desktop has no such capability.
Is there a way (besides buying a wi-fi adapter) to get Internet access on my desktop computer through networking so that the router would give both computers Internet access at the same? My Gentoo desktop does have an ethernet adapter that perhaps I could useThe router has several LAN ports and one WAN port, both unused.
My wifes networked computer connected to the network just fine when it was Win XP. Now that Ive converted it to 10.04 (completely) it can see the network, but it just wont connect to it. I had no problem converting my computer to Ubuntu and it sees the network and accesses it great. Files, folders and hard drives are all shared. So, one computer connects great, the other does not.**I dont know what to do at this point.Here is the layout:My Comp (10.04) ---------......Main Network Comp (XP)Wife Comp (10.04) -------/The main network computer is XP as it has software on it we need that does not work in Wine. The main computer will have to stay XP. I cannot get my wifes computer to connect to the main system, although mine connects just fine. I dont know what the problem is. Her computer sees the network, but when trying to connect, it times out and says unable to connect.
My friend has Ubuntu on his computer and he told me that one day when he turned It on all the text and Images on his computer are small. This even happens when he opens the Internet, not just on his desktop. Could this be an Ubuntu problem or could there be a setting that was accidentally switched?
Samba seems to crash and come back after some seconds if I copy a lot of small files in a short period of time over the network. How do I fix it?
I have Ubuntu 9.10 Server 64bit running on a D945GCLF2 board sharing two 1TB ext4 formatted HDDs to my Windows PCs using samba. I've been having an issue with reading or writing files through samba. It happens during copying operations or checksumming, anything that reads or writes MANY small files in a small amount of time. I am pretty sure the problem has to do with my server because the server has run on two different LANs in different homes and will crash from activity with any of several other PCs. There is no crashing if I access the files through SSH, although when I do that the max transfer speed is less than 1MB/s.
When I induce the crashing, there is absolutely no output to the server terminal.
As an easy access example of something that will crash samba, extracting Cinebench R11.5 to the server will do the job. It always fails.
I need to make a wirelss Hot Spot at our small hotel in Italy. I am already doing it, however I have no way of logging my customers. As per the new laws here in Italy, I must secure my wi-fi and keep a log/database of all that enter. I have found some units that will cost me about a 1000euro to purchase, but I am providing this to my customers for free, so if I can do this by using one of my extra/old computers running linux, that would be ideal.
I did a general search for these terms: "wireless access point hot spot firewall" but there were zero results, which I thought was strange.
I have two Linux computers and one small home router with DHCP functionality. I configured the router with the "dynamic DHCP" setting, ie, the static DHCP with MAC-Address was not used. Before that, I used the manual IP configuration, defining the two computers' names in the /etc/hosts file.
Example:
10.0.0.2 comp2 10.0.0.3 comp3
Now, with DHCP, the above example is no longer appropriate, because the DHCP server is supposed to tell the computer what IP number it will receive. However, I am missing something, because I haven't figured it out yet how to make one computer know the other computer's name. Is it that I haven't installed a name-finding package? Is there a simple way to accomplish this (one computer finding the other computers' names)?
I have ubuntu server installed on a pc. The motherboard died, so I switched the HD to another computer. Everything is fine except the network. I cannot access this computer from other computer (while it was possible before). I looked at the interfaces and everything seems fine. The nic itselft seems to work too.
i want to find ip address of other computer which are connected in LAN..suppose ther are 5 compter in LAN and i want to find ip of all remaining 4 computer using my computer only in command or any other way is ther....
I downloaded the vnc 4.1 on my linux computer which is running Ubuntu I'm not sure how to view it on a windows computer. I really have no idea what i'm doing so can anyone that answers please add as much detail as possible.
I'm having trouble to get connected to the internet on CentOS 5.2 . I have an NVIDIA nForce Networking Controller onboard. And I've been trying to find a driver for this, but I was unsuccesful so far. And if I have a driver, how do I install it? Could anyone please help me to get this working. I'm just a beginner with CentOS and Linux, so I don't have much experience yet. Oh, and I forget to say that Centos 5.2 on VMware does have internet, but I stopped using vmware because it became very laggy on my Vista OS, so I started to use dualboot.
I had the elrepo kmod-r8168 driver running smooth for a while on my development box. Yesterday, I did a clean install on it and when I tried to install the latest kmod-r8168 rpm, it failed to enable the networking support:
# yum --enablerepo=elrepo install kmod-r8168
The install performed all proper steps to disable the 8169 driver, I double checked to be sure.This is not a connectivity issue. If I remove the kmod-r8168 rpm, reboot the server and run the ifconfig eth0 up to activate the interface, everything works as expected. I use the latest kernel (2.6.18-194.26.1.el5 x86_64).
First, I performed a clean install, activated the eth0 and did a yum update, then installed the kmod-r8168 with yum. Then, I reinstalled the OS again, activated the eth0 and installed the kmod-r8168 on a 5.5 CD based kernel, same fail results. The only hiccup is: every time I start the box, I have to activate the eth0 interface (with default CentOS 8169 driver):
# ifconfig eth0 192.168.1.3 # ping -c 3 192.168.1.1 (no packets lost) # ifconfig eth0 up
I need to setup a small VPN server for about 20 people. Will a VPS with 192mb ram be enough to handle this? The only services I need to run is those necessary for VPN.
