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Forum: Networking

Help requests related to Linux networking: setup, configuration, internet connection sharing, iptables, etc

  1. Non-authoritative answer and NXDOMAIN Error on nslookup

    Hi nslookup nslookup Both gives me the following error. Non-authoritative answer nslookup ip.address

    Started by agriz, 12-09-2011
    • Replies: 1
    • Views: 5,013
    12-15-2011 Go to last post
  2. Multiple USB Modems

    I am new to linux, and I also have a similar problem. i.e. I need to connect multiple 3g modems to single PC and connect them to the internet...

    Started by manaz, 12-13-2011
    • Replies: 0
    • Views: 1,033
    12-13-2011 Go to last post
  3. linux not responding to ping

    Hi everyone. I'm trying to tranfer some files from my Windows machine to the Linux one. For that I have to mount the shared folder. When I run the...

    Started by Llanosflats, 12-01-2006
    • Replies: 4
    • Views: 15,694
    12-09-2011 Go to last post
  4. Can't ping via direct connection using auto-ip address

    I have two Linux hosts that I am trying to connect. Each host has 4 NICs. They have each been auto-configured with 169.XXX.XXX.XXX addresses. The...

    Started by McGoo, 12-06-2011
    • Replies: 0
    • Views: 2,107
    12-06-2011 Go to last post
  5. Host not reachable - Please help

    Hi all, I have an Ubuntu machine which is connected to two switches, IDMZ and ODMZ. The firewall is also connected to the ODMZ switch. Firewall...

    Started by tezarin, 11-17-2011
    • Replies: 8
    • Views: 3,143
    12-06-2011 Go to last post
  6. Configuring Bind9

    I have a question, that I hope is simple. Currently I have bind9 on my router and it's working fine. I was wondering how to make it that when I...

    Started by Slyke, 12-05-2011
    • Replies: 2
    • Views: 1,171
    12-06-2011 Go to last post
  7. How to disable ports?

    Hi I want to disable all the ports other than 80, 8080 and custom ssh port. (I have decided to change 22 for something for security reason) How...

    Started by agriz, 11-21-2011
    2 Pages
    1 2
    • Replies: 13
    • Views: 10,938
    12-03-2011 Go to last post
  8. How to DNAT with iptables

    When x.x.x.x makes a request on port 80 to y.y.y.y I would like the request to be redirected to z.z.z.z:80. I'm trying to do this with iptables under...

    Started by jshailes, 11-30-2011
    • Replies: 4
    • Views: 2,802
    12-01-2011 Go to last post
  9. iphone 4 internet connection usb-cable instead of wifi.

    Hi everbody I have iphone 4 phone and ubuntu 11.04 64x internet connected computer system. Is it possible to share this internet connection via...

    Started by whynot, 11-29-2011
    • Replies: 3
    • Views: 2,170
    11-30-2011 Go to last post
  10. Clustering using VMware images

    Hi I would like to understand the basics, setup of a cluster. I have a powerful machine in i7, 6 gb ddr3 Ram. I was thinking why not clone a same...

    Started by arun1151, 11-30-2011
    • Replies: 0
    • Views: 730
    11-30-2011 Go to last post
  11. routing question / problem

    Internet Gateway Server 1 gateway: VIP: VIP:...

    Started by hopfensp, 11-29-2011
    • Replies: 1
    • Views: 1,064
    11-29-2011 Go to last post
  12. RHEL 5.5 cannot be pinged

    I have just installed RHEL linux 5.5. I am trying to ping RHEL from windows and get 'request timed out' Firewalls disabled on both linux/windows...

    Started by bhakti1982, 11-17-2011
    • Replies: 3
    • Views: 1,694
    11-29-2011 Go to last post
  13. Host: request time out on 1 NIC .. success on other

    first posting .. forum won't allow me to post IPs so I can't post ifconfig info. RH 5.6 why can my windows 7 PC ping my Linux server on the...

    Started by ZenMusic, 11-28-2011
    • Replies: 2
    • Views: 1,319
    11-29-2011 Go to last post
  14. Clarification about NDP option

    Hi, I'm looking for the Neighbor Discovery Protocol (NDP) equivalent of NET_IPV4_CONF_ARP_ANNOUNCE, to be set on the linux system (2.6.24) using...

    Started by madhurjf, 11-24-2011
    • Replies: 0
    • Views: 1,043
    11-24-2011 Go to last post
  15. NAT rule not working again after server reboot

    Hi guys, I'm newbie of linux networking and have been try and error for few days, without any progress.....any help would be much appreciated!!!...

    Started by juchu, 11-21-2011
    2 Pages
    1 2
    • Replies: 13
    • Views: 3,335
    11-23-2011 Go to last post
  16. ssh: connect to host 192.x.x.5 port 22: Connection timed out

    Hi guys, I am running a simulation on a cluster server. My cluster server consists of one main machine and 9 auxiliary machines. For the purpose...

    Started by saikat056, 11-22-2011
    • Replies: 0
    • Views: 2,724
    11-22-2011 Go to last post
  17. Complex Port-Forwarding

    Greetings, this is an issue I've been struggling with for quite a while now. Scheme : LAN----ROUTER----INTERNET I have...

    Started by Trix01, 11-16-2011
    • Replies: 2
    • Views: 1,026
    11-21-2011 Go to last post
  18. Exclamation Possible hack attack in Ubuntu Server?

    Hi All, I am having a Ubuntu 10.04 Server with Shorewall 4.4.6. For some days, i have been seeing that the logs shorewall.log, kernel.log and...

    Started by raghaven.kumar, 10-25-2011
    2 Pages
    1 2
    • Replies: 12
    • Views: 4,942
    11-21-2011 Go to last post
  19. How to sent WAN traffic through eth0 or ppp0 depending on client

    Hi all, I have the following question. Currently my WAN traffic for all clients is going through eth1. What do I need to do if I want all...

    Started by boexli, 11-19-2011
    • Replies: 1
    • Views: 1,211
    11-21-2011 Go to last post
  20. DOS attacks

    hi, I want to generate and test the DOS attack resistance for my code......For that i have downloaded SYN flood source code and i compiled that...

    Started by keerthipriya, 11-21-2011
    • Replies: 1
    • Views: 737
    11-21-2011 Go to last post

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