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Forum: Networking

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

  1. DNS traffic from 127.0.0.1 to 127.0.1.1 and from 127.0.1.1 to 127.0.01

    DNS traffic from 127.0.0.1 to 127.0.1.1 and from 127.0.1.1 to 127.0.01 is normal? OS ubuntu

    Started by pixliks, 01-19-2016
    • Replies: 2
    • Views: 566
    01-21-2016 Go to last post
  2. OpenVPN Client Configuration.

    Hi, I have a openvpn client here. How do I not pass certain things through the vpn for example SSH So I can still connect to it locally/remotely? I...

    Started by rathel, 01-19-2016
    • Replies: 2
    • Views: 710
    01-20-2016 Go to last post
  3. iptables forward for specific ip

    I have a situation and I could't find anything to help me on the internet. I'm new to this and maybe I'm asking stupid things. I need to find a...

    Started by mihai.rarau, 01-19-2016
    • Replies: 3
    • Views: 675
    01-20-2016 Go to last post
  4. How can i detect sniffer on my skype or icq traffic?

    How can i detect sniffer on my skype or icq traffic? How can i verify checksum of tcp/udp skype packets? My skype traffic is modified :(

    Started by pixliks, 01-19-2016
    • Replies: 1
    • Views: 595
    01-20-2016 Go to last post
  5. Exclamation Debugging TLS network connection

    After upgrading from F21 to F22 can't connect to corporate WiFi network... Upgrading is performed by using fedup. No errors/issues were observed...

    Started by blnl, 11-20-2015
    • Replies: 6
    • Views: 2,128
    01-07-2016 Go to last post
  6. keepalived, iptables, interfaces without real IP, How to configure it

    Hi at all. I'm using a Debian with Keepalive 1.2.13 I configure the keepalived application and iptables, but the roles in the iptables seems don't...

    Started by enigmament, 12-23-2015
    • Replies: 2
    • Views: 1,246
    01-07-2016 Go to last post
  7. How to prevent single point of failure without reg. new domain?

    Hello, what is the quickest way to setup DNS to prevent Single point of failure error (DNS in different geo location)? In my case hosting.com is...

    Started by postcd, 12-08-2015
    • Replies: 3
    • Views: 987
    12-31-2015 Go to last post
  8. Question VPN-Server (IPsec only): How to do NAT and Routing?

    Hi there, I'm a Linux noob and I'm looking for help with NAT and routing on my VPN server (Openswan). With the help of several tuorials I set...

    Started by iBlueDragon, 12-12-2015
    • Replies: 1
    • Views: 1,727
    12-27-2015 Go to last post
  9. openvpn access server - cant ping DNS names

    hi all, i have succesfully got working site to site and i can connect each way ie from site a to b and b to a via pings/traceroute/web...

    Started by robertw, 12-17-2015
    • Replies: 3
    • Views: 845
    12-18-2015 Go to last post
  10. Does a tcpdump on bond0 generate the same output like on br0

    I was trying to set up a bridge in mirco core linux and I turned out that it wasn't supported. So I made a bond instead. In the end I would like to...

    Started by apu, 12-08-2015
    • Replies: 1
    • Views: 440
    12-17-2015 Go to last post
  11. 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: 1,253
    12-07-2015 Go to last post
  12. 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: 1,016
    12-07-2015 Go to last post
  13. 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: 1,122
    12-04-2015 Go to last post
  14. 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: 494
    12-03-2015 Go to last post
  15. 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: 446
    12-01-2015 Go to last post
  16. 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: 567
    12-01-2015 Go to last post
  17. 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: 700
    11-18-2015 Go to last post
  18. 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: 683
    11-12-2015 Go to last post
  19. [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: 984
    11-10-2015 Go to last post
  20. 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: 2,061
    11-02-2015 Go to last post

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