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Forum: Networking

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

  1. Bonding on GRE Tunnel interface

    Hi All, I am very new to Tunneling and Bonding concepts. I need to add Bonding over GRE Tunnel interfaces. I am doing it on Ubuntu 15.10. ...

    Started by Alfred_Henry, 12-07-2015
    • Replies: 0
    • Views: 394
    12-07-2015 Go to last post
  2. Smile Network Monitoring Software

    Hi, I have a need to implement a network monitoring software which can get the following information from it. 1. Automatic network nodes...

    Started by amithad, 12-04-2015
    • Replies: 2
    • Views: 501
    12-07-2015 Go to last post
  3. Connection timing out for Web App hosted on a Virtual Machine

    Hi all, I have a CentOS 6.7 Virtual Machine running on a Windows 7 host. I have configured a bridged network to the guest, and I have a Static IP...

    Started by gary_feesher, 12-01-2015
    • Replies: 5
    • Views: 558
    12-04-2015 Go to last post
  4. Nearly full conntrack table, 60K lines

    Hello, im having CentOS (redhat) OpenVZ VPS and i do command: wc -l /proc/net/nf_conntrack sysctl net.netfilter.nf_conntrack_count &&...

    Started by postcd, 12-03-2015
    • Replies: 0
    • Views: 233
    12-03-2015 Go to last post
  5. Thumbs down NtopNG is Difficult to Install

    Hi, I tried installing ntopNG several time in different Linux platforms ( CentOS & Ubuntu ) but it failed. The least succesful installation on...

    Started by amithad, 12-01-2015
    • Replies: 0
    • Views: 229
    12-01-2015 Go to last post
  6. How to install Linux CentOS to be ready for datacenter housing?

    i would like to use CentOS 6.6, i see i can use ISO, netinstall for example. But im not sure how exactly i should install it so after it is plugged...

    Started by postcd, 11-29-2015
    • Replies: 1
    • Views: 341
    12-01-2015 Go to last post
  7. ARP request broadcast when using raw socket to send raw IP packets wit

    First, let me describe the problem briefly. I have to programs which send IP packets from a host(192.168.0.101) to another host(192.168.0.106). These...

    Started by esolve, 11-18-2015
    • Replies: 0
    • Views: 260
    11-18-2015 Go to last post
  8. on what conditions can tcpdump on a host capture packets which are not

    I have three laptops in a WLAN, A, B and C. A and C are using Wlan interface wlan0 but B is using Ethernet eth0,B is connected to the wireless router...

    Started by esolve, 11-12-2015
    • Replies: 1
    • Views: 448
    11-12-2015 Go to last post
  9. [SOLVED] dhcpd complains about a subgroup entry

    Internet cable via a Linksys AC1200 (EA6100) cable modem, then Tp-Link switch that supplies west side of the house. Off this same switch is a D-Link...

    Started by jkwilborn, 11-09-2015
    • Replies: 2
    • Views: 513
    11-10-2015 Go to last post
  10. Join Mint 17.2 to windows AD

    I done stages that guide on this article : https://help.ubuntu.com/lts/serverguide/sssd-ad.html but when I type : sudo kinit Administrator gave...

    Started by bookman, 10-18-2015
    • Replies: 2
    • Views: 1,777
    11-02-2015 Go to last post
  11. draytek - setting up IPsec client

    hi all, i cant for the life of me get this to work, i attach screenshots of what i have done for both routers, my authentication im using is...

    Started by robertw, 10-30-2015
    • Replies: 1
    • Views: 659
    10-30-2015 Go to last post
  12. routes for certain subnet

    hi all, in the screenshot below is my route table on our procurve switch atm all out networks are going out via our tmg router (0.0.0.0/0...

    Started by robertw, 10-29-2015
    • Replies: 0
    • Views: 359
    10-29-2015 Go to last post
  13. Destination unreachable (Host administratively prohibited

    I have a program which send TCP packets from laptop A to laptop B (there is a laptop C which acts as relay, and B send packets to C(192.168.0.100)...

    Started by esolve, 10-28-2015
    • Replies: 0
    • Views: 388
    10-28-2015 Go to last post
  14. L2TP/IPsec - site to site tunnels

    hi all, i have set up L2TP/IPsec server on my pfsense (building a) and L2TP/IPsec client on my draytek router (building b) in building b on a...

    Started by robertw, 10-25-2015
    • Replies: 1
    • Views: 498
    10-28-2015 Go to last post
  15. port 25 can send/recieve outside but cant telnet from outside

    hi all, got a wierd problem, which i cant figure out i CAN send and recieve emails from roundcube webmail to my gmail and vica versa, its on a...

    Started by robertw, 10-22-2015
    • Replies: 2
    • Views: 396
    10-24-2015 Go to last post
  16. TCP connet: No route to host

    I started a tcp server on a host A and then start a tcp client on another host B. both hosts are in the same LAN via the wireless router at home....

    Started by esolve, 10-15-2015
    • Replies: 2
    • Views: 555
    10-18-2015 Go to last post
  17. no output when ping-ing a openvpn interface

    I'm following the tutorial to learn openvpn Tun/Tap interface tutorial \1 by following the steps of the part: `let's try it` I use openvpn...

    Started by esolve, 10-06-2015
    • Replies: 1
    • Views: 476
    10-09-2015 Go to last post
  18. Controlling traffic through 2 NICs

    Hello, I have Debian Linux with two wireless network interface cards. One of them is built in to the computer and is currently my wlan0. The other...

    Started by tekcap, 08-27-2015
    • Replies: 5
    • Views: 620
    10-07-2015 Go to last post
  19. Running Minecraft Server on Ubunut 15 ... and problems :(

    My son really wants to play Minecraft on the PC and we bought a book titled 'Adventures in Minecraft'. We've been able to get the Bukkit package...

    Started by thevaliantx, 09-18-2015
    • Replies: 4
    • Views: 700
    10-05-2015 Go to last post
  20. Question How to measure network latency to service without ICMP/ping?

    Hello, Do you know way to measure network latency of service which running on specific port number and all other traffic to the same server is...

    Started by Abadon, 09-29-2015
    • Replies: 5
    • Views: 575
    09-30-2015 Go to last post

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