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Forum: Networking

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

  1. server can ping client, but client cannot ping server

    Hello All, I am setting up a back up linux machine and have connected it to the network switch. i have configured the network card eth0 within the...

    Started by jzakharia, 06-30-2015
    • Replies: 2
    • Views: 460
    06-30-2015 Go to last post
  2. iptables and virtual machine

    Hello Forum Users, My System is a Ubuntu Server „Trusty Thar“. my Problem is I don't get my ICMP – Signal with Forwarding through my virtual...

    Started by sorlflo, 06-22-2015
    • Replies: 8
    • Views: 834
    06-28-2015 Go to last post
  3. HowTo Redirect To Different Port Based On URL

    Hi Guys, I have two servers that need to communicate. and is hosted on a provider that only allows...

    Started by sgharp, 06-18-2015
    • Replies: 2
    • Views: 469
    06-25-2015 Go to last post
  4. Securing My IP PBX Using IPTABLES

    Hi I'm using freepbx on Centos 6.5. I already have fail2ban installed and am getting quite a bit of attempts to gain access through port 5060. So...

    Started by hami, 06-19-2015
    • Replies: 0
    • Views: 536
    06-19-2015 Go to last post
  5. Has HTTP changed much with IPv6?

    .... and when is the whole world switching over to IPv6, exactly? Thanks.

    Started by resetreset, 06-13-2015
    • Replies: 5
    • Views: 807
    06-17-2015 Go to last post
  6. Hibernate/Suspend mode for HTTP Server

    Hello! I wonder if web server ever goes to sleep (hibernate/suspend mode)? And if a visitor's browser asks for a web page, then the web server...

    Started by papakota, 06-12-2015
    • Replies: 3
    • Views: 642
    06-16-2015 Go to last post
  7. WLAN-KDE Authenthification pops up every five minutes

    hello dear linux-experts, hope everything is all right and you are well. i struggle with some issues here: the WLAN-KDE Authenthification...

    Started by sayhello, 06-14-2015
    • Replies: 1
    • Views: 291
    06-14-2015 Go to last post
  8. IPTables Forward Accept

    Hi, Is there a security risk with leaving Forward set to Accept if you either don't have Pre/Postrouting rules or if the Pre/Postrouting rules are...

    Started by c7aig, 06-11-2015
    • Replies: 1
    • Views: 490
    06-12-2015 Go to last post
  9. Download speeds

    I did an experiment to compare download speeds of Linux versus Windows XP. Downloaded the same .iso file within 5 minutes using Linux and XP from...

    Started by fixit7, 06-09-2015
    • Replies: 4
    • Views: 764
    06-11-2015 Go to last post
  10. How to enable WIRELESS_EXT?

    Hi, I was trying to enable IPsec on my linux (3.4.44) image in Virtual-Box. So in 'make menuconfig' enabled "PF_KEY sockets (NET_KEY) y IP:...

    Started by shivashankarcr, 06-11-2015
    • Replies: 0
    • Views: 354
    06-11-2015 Go to last post
  11. Retrieve TCP state details for an open connection without tcpdump?

    I have an environment with a few hundred Linux (CentOS/RedHat) servers that all interact with each other through TCP connections. Above the TCP...

    Started by aaron_e, 02-26-2015
    • Replies: 2
    • Views: 569
    06-11-2015 Go to last post
  12. Websocket server: cannot access from web browser

    Hello, At the moment, I have a centos 6.5 basic server that has a static IP of and so far I've only port forwarded it to 22 for ssh...

    Started by jktexas1, 05-29-2015
    • Replies: 5
    • Views: 855
    05-31-2015 Go to last post
  13. Why there're two servers in http HEAD request?

    Hello! I use Ubuntu Desktop's terminal where I type the following command: HEAD HTTP/1.1 In the reply I see one server, say, for Google it...

    Started by papakota, 05-30-2015
    • Replies: 4
    • Views: 495
    05-30-2015 Go to last post
  14. Firewall restore and VPN kill switch

    Hello, I would like to use kill switch feature for VPN in Ubuntu, i.e. to make it possible to access Internet only when I am connected to VPN and...

    Started by johnyjj2, 05-26-2015
    • Replies: 1
    • Views: 463
    05-27-2015 Go to last post
  15. [SOLVED] About set up static IP

    Hi all, Ubuntu 14.04 I encountered problem on setting up static IP without via router /etc/network/interfaces # interfaces(5) file used by...

    Started by satimis, 05-27-2015
    • Replies: 2
    • Views: 469
    05-27-2015 Go to last post
  16. Virtual Box Bridged network failed to get IP (DHCP) No DHCPOFFERS rece

    I am newbie in networking and virtual box configuration, I have spent several days dealing with this problem. My goal is to get Bridged network...

    Started by Nitup, 05-26-2015
    • Replies: 1
    • Views: 489
    05-27-2015 Go to last post
  17. Home Network, Windows and Linux

    I have two computers on a Home Network,,,,one of them is a 1TB- Win 8 machine and the other is another 1TB-Win 8 machine that I have totally wiped...

    Started by dicklaxt, 05-23-2015
    • Replies: 5
    • Views: 751
    05-27-2015 Go to last post
  18. Networking setup using some tool?

    Hello, please is there any tool that even newbie can use to setup networking (internet connection) on Linux CentOS 5.11 KVM VPS? i spent around...

    Started by postcd, 05-22-2015
    • Replies: 7
    • Views: 797
    05-26-2015 Go to last post
  19. Incrontab Directory Change (watched Folder = Mounted FTP Account)

    Hi there, I am thankful for the answer of this Question in advance. I have set up that i have mounted the FTP Account(FTP server is Windows)...

    Started by kunalks, 05-25-2015
    • Replies: 8
    • Views: 713
    05-25-2015 Go to last post
  20. Lightbulb Gateway&netmask IP of the single IP KVM VPS

    Hello, i have an KVM VPS with one IP assigned (/32), please how can i discover gateway and netmask IP that i can use on this VPS?

    Started by postcd, 05-22-2015
    • Replies: 0
    • Views: 284
    05-22-2015 Go to last post

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