CentOS 5 Networking :: Setup A Crossover Connection Between 2 5.5 Boxes
Feb 7, 2011i am not able to set up a crossover connection between 2 CENTOS 5.5 boxes.
View 4 Repliesi am not able to set up a crossover connection between 2 CENTOS 5.5 boxes.
View 4 RepliesI've been reading too much and understanding too little. What I have: Lucid laptop & desktop. Both have ethernet > hub > internet. What I want: connect them directly by the serial ports so the laptop can access the desktop's drives, and the desktop can be retired from the internet. I've got an old DB-25 null-modem, last used for multiplayer Doom. The laptop's dock has DB-9, so the connections is desktop > null-modem > Belkin DB-25 - DB-9 cable > laptop.
I had hoped this post would get me somewhere:[URL].. No such luck. When I ping 'grin.local', the connection is through the internet. If I disconnect the hub, i cannot ping.
Dunno if there's something more I should do to enable serial connection in Lucid, or if my null-modem is no longer good. I'm also rather curious how "grin.local" manages a connection through my ISP's system. These are DHCP. Shouldn't that have required the full numerical IP?
(It's nothing to do with the hub. Checked that by connecting a third box to the hub. My ISP only hands out two IP. I couldn't ping the third box.)
I have a desktop running Ubuntu 8.04. I installed 10.04 on my laptop. When I mount my desktop music folder on my laptop and transfer files, they now only go at 100-200 KB/s. When I had 9.10 installed, they transferred at 1-2 MB/s.
This is the command I use to mount the directory:
sshfs matt@169.254.6.233:/home/matt/Music/ /home/matt/Music/desktop/
Is there any way I can speed it up to get it back to max speed?
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.
View 1 Replies View RelatedI use Linux Mint 10 and have been on Linux for about a year now. I'm no expert, but I can sort of find my way around. My problem is that I am not able to set up a LAN and share my internet connection through a crossover cable. I have a USB 3G data card for my internet connection, and getting a router for it is a mite expensive. I have a crossover cable and searching on the net led me to believe that I could do what I want to. The only problem is that I am unable to.I've got two desktops both on the same Mint 10 and when I connect them assign an IP address and gateway, my network manager shows that the connection is up, but I'm not able to ping the other system. I've even exited my firestarter firewall in case that was what was causing the problem, but I've not found a solution as yet.My knowledge of networking is at that dangerous stage where I know very little, but think I know a lot. What I've learnt about networking I've learned over the past one month when looking around for solutions to my problem but my basic understanding leaves a lot to be desired.
View 6 Replies View RelatedMy first time installing centos server and adding it to xp home network. I am new to setting up my own network in general. I have a home windows wired ethernet xp network (simple linxs router) with 2 xp boxes and one centos5 box all connected to the same router. I just set up the centos box running tomcat on port 8080. I need to do two very basic things at this point, but am not sure what I need to do:
What do I need to do so I can:
1. Connect in firefox on one of my xp boxes and call the tomcat server running on my centos box?
2. Be able to ftp to centos box from either of my xp boxes?
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?
Is there any way to setup the Centos Directory Server without an internet connection?? i tried using the command: yum install centos-ds
but this just tries to connect to the internet to to download the packages. Is there a site where i can find the package so that i can copy it to my server and install it or is there some other way to do this?
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.
I'm trying to setup PPPoE connection to establish my DSL connection, but I got
Code:
pppoe[3885]: read (asyncReadFromPPP): Session 4479: Input/output error
pppd[4104]: Cannot determine ethernet address for proxy ARP
in my sylog file.
When I do pppoe-start, it connected but I cannot ping into any destination (even to my modem in the same network). DNS servers are explicitly set in pppoe.conf and resolv.conf. Did I miss anything?
To begin, this is the thread that I always use to set up my Ubuntu boxes for AD authentication:
[URL]
I've had this 10.04 server running for about three months with AD authentication running on it perfect. I have multiple Samba shares that authenticate from AD as well. For some reason, this week it decided to completely stop accepting any authentication from AD.
I checked all of my config files, they are all untouched. I have restarted the machine multiple times. I have unjoined and rejoined the domain on the Ubuntu server. I have no audit failures in my security logs on the domain controller.
Output of /var/log/auth.log whenever I try to log on via an AD user:
Code:
Nov 4 11:58:50 caribbean sshd[1869]: Invalid user justin from 10.3.17.12
Nov 4 11:58:50 caribbean sshd[1869]: Failed none for invalid user justin from 10.3.17.12 port 54738 ssh2
Nov 4 11:58:51 caribbean sshd[1869]: pam_winbind(sshd:auth): getting password
[Code].....
I have been trying to setup IPSEC encryption between two linux boxes. I have a server application which runs on Linux Box A and a client application which runs on Linux Box B. The client sends the data to server. I have captured wireshark logs at both server and client end. In the wireshark logs I can see that the Box B send ESP packets to the Box A.
But the server Application running at Box A is is not able to get any packets. If I turn the policy off at Box B, Box B sends normal UDP data packets to Box A, but still the Server Application running at box A doesn't get any packets.( Expected behavior since policy at Box A enforces that all packets coming from Box B should be encrypted.)
If I turn the policy off at Box A and Box B both, the server application receives the unencrypted data which is also expected behavior. But when the policy is turned on at both the boxes the encrypted packets reach the Box A but are not delivered to the server application. If anyone has faced such issue please help me to debug this issue. I have attached the ifconfig and policy settings at Box A and Box B for your reference.
got a watchguard firebox 1000 here, old tech i know, the manuals/pdfs on their site want me to use a crossover cable for the quick setup and I havent got any at the moment, but I got dozens of normal patch cables and switches. Can I use 2 patch cables on a switch to simulate a crossover cable scenario? If so ... would there be anything extra to do to make that method work? --tia
this thread indicates there is no difference other than what they mention in the thread? confirmation on that? [URL]
I have backtrack 4 os on my acer netbook and i want to create a vpn connection! how to setup the vpn connection?
View 1 Replies View RelatedSo i have a Vista desktop wirelessy connected to the router and a laptop running UNR 10.04. I used a Gigaware Cat5e crossover network cable to connect the desktop and laptop, and the lights light up orange so it's responsive i guess. I installed samba and can access my shared files on vista from my laptop but the transfer is 1mb/sec, i was hoping the crossover could help achieve something like 50mb/sec. Which is why i don't think i set it up right at all. How can I connect vista to ubuntu via crossover cables to transfer files?
View 4 Replies View RelatedAt the outset I would like to tell everyone that I am still relatively a newbie in linux. I use a usb mobile broadband data card to connect to the internet, and I recently purchased another desktop for my wife. Both of us do not share any files, but I do not have a router and was wondering if I could share my connection with her using a crossover cable.I did a lot of Googling around and tried various different things, I even followed another thread in the same forum but the most that I have got is my network manager saying that connection has been established. I am however not able to see her computer under my windows network and don't know how to proceed.I don't know where I am going wrong, and considering that my knowledge of networking is at below basement level, I would really appreciate any help in this regard.
View 2 Replies View RelatedIve just installed ubuntu on a small nettop type pc. It can connect to the internet but I want a direct network connection thru gigabit LAN using a crossover (apparently a straight cable would have been sufficient). Anyway, I have no idea where to begin. The network connection manager in Ubuntu shows Autoeth1 which is right and, if I manually set the IPv4 I can get the PCs to somehow see each other and the 7 pc to give a 'network access only' but that's it.
View 2 Replies View RelatedHere is the setup I have. Two debain (squeeze machines) A1(eth0,192.168.33.1, netmask 255.255.255.0) and B1(eth0,192.168.43.1, netmask 255.255.255.0). They both have 3 nics'. So I am trying to connect to each other with a crossover cable and I have added the routes manually. eg: on machine A1 route added was
route add -net 192.168.43.0 netmask 255.255.255.0 gw 192.168.33.2 eth1
and on machine B1
route add -net 192.168.33.0 netmask 255.255.255.0 gw 192.168.43.2 eth1
For project purposes they both have to be on different networks, evn thouhg they are in same room.
I have dell dimension 4700 I installed slackware 12.2 onto with the of making it a headless home network jukebox that I could ssh into and control via a crossover cable.From other posts I've seen, it looks like I just need to set up the IP addresses under the same netmask, and can use ssh then. On the slackware machine, it does not seem to recognize an eth device.
Code:
# dmesg | grep eth
Driver 'st' needs updating - please use bus_type methods
Driver 'sd' needs updating - please use bus_type methods
Driver 'sr' needs updating - please use bus_type methods
[code]....
i am accesing internet via proxy server till now...now i switched from proxy server to broadband connection. can't able to setup internet connection.
View 2 Replies View RelatedI need to setting up my wireless connection on ubuntu.
View 1 Replies View RelatedI've just done a fresh install of Ubuntu 10.04 lucid lynx and how to setup a pppoe connection in ubuntu. ( thats after 2 hours of googling and trial and error)
system info: its a laptop : Dell Studio XPS 16 connected to a Ethernet hub thats connected to a dsl modem..
I recently setup ubuntu 9.10 in my desktop..I don't know whether the connection is dialup or not. I used the connection with cable connection. I have got the following information from my ISP:
User name: n372_asad_go@brisksys.net
service name: brisknb
password: 16251521
I am trying to setup a wireless connection between F10 and a HP J6480. I dnloaded the linux driver hplip-3.9.2, disabled the SELinux and ran the install. When I choose method of connecting - wireless it would not discover the device. The only way was to enable the USB descovery. Doing so, the computer found the printer and all is fine. What am I missing trying to enable the wireless connection. Note, that during this process, the USB was not connected. Also, I dual boot with Vista and I can run the printer wireless.
View 7 Replies View RelatedI installed the Kde desktop and i'm unable to setup a broadband dsl connection
i have done the settngs in network manager gave password username service name etc.
but the option for connection doesnt appear
the connection works properly in windows as well as gnome 3 desktop but not in kde
My adsl modem is in bridge mode. I can connect to internet via pppoe . pppoeconf recognise the pppoe in eth0 and setup a connection and I can use it. How can I setup a pppoe connection using pppoeconf so that it uses wireless ? I set the wireless mode to bridge in modem settings. But, after that the access point stopped appearing in "aps in range" in network manager and I can't connect to it. pppoeconf also doesn't recognise wlan0 as a valid pppoe link . but dat is normal since i don't think it can check if wlan0 is pppoe without wlan0 being connected to the modem's wireless network. How can I connect to Internet with modem in bridge mode and connections via wireless interface of modem? Is pppoe over wireless even possible ? coz the datalink layer of wlan is not ethernet rite?
View 6 Replies View RelatedI have BIG troubles trying to set up wired internet connection in Ubuntu! To be able to connect to the internet I have to enter my MAC address, 2 IPs, netmask and 2 DNS address. When I try to edit the default internet connection eth0 with my correct information, the minute I enter my MAC address and save the changes the network manager creates new internet connection with wrong data and use it instead! I can't select the correct internet connection from the top bar where the internet icon is, because it is just not there. The only connection that I can choice is the new default one with the wrong data! If I try to create new separate internet connection with my correct data the same thing happens! The moment I enter my MAC address and save it, the internet connection disapears from the list of internet connections in the internet area in the top bar and I can't select it. I tried googling it, but with no luck I think that if I set up my connection trough the terminal everything will be ok
View 2 Replies View RelatedI tried setting up a adhoc wifi in my debian laptop, so that my other laptop running Ubuntu could connect to it. Though the access point made on Debian laptop is visible on Ubuntu laptop, I could not establish a connection.Then I used create new wireless network tab to create a connection named test1. Though it shows up on Ubuntu box, i couldnt connect to it.
View 4 Replies View RelatedI tried to connect two ubuntu computers via crossover network. But sometimes they can connect and see each other and even ping each other and sometimes not!
Each time, each of my PC's can ping it's own IP address but may not ping the other PC. I tried to disconnect cable, reconnect, disable network, enable it again, change IP address, disconnect via Network Manager Applet, reconnect and... . But when one of them don't want to connect I can't do this anyway!
Anyone knows what must be the problem? Sometimes it took about many seconds to get them connected, and sometimes they can't connect for many hours.
I must add that I have an ADSL modem on one of two Ubuntu PCs that connect via another cable.
I have a home network and I use Samba to share files. Now when I am on the network, I can see the shares just fine, but if I use a crossover cable, I cannot see or access the folders or files.My goal is to use a crossover cable from one computer with clonezilla to my server in order to use Samba to make an image of my workstation and save the image on my server.But everytime I try to connect with clonezilla I get a persmissions error and the share will not mount. I tried going to the shell and mounting as root, but that did not work either.
I have another server which is only a console and it works though I am unsure why. The share though is a mounted usb drive while on the one that does not work, it is on the internal hard drive.I was wondering if anyone had any ideas or anything I could try to narrow down the problem. Oh, I can access the share using ssh, but not samba. One other thing, the shares are set to allow read/write access to everyone so I don't see why I can not access it.