the IP protocol and IP addresses

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3
votes
5answers
251 views

Why am I getting inconsistent IP values from icanhazip.com or curlmyip.com?

I wrote a bash script and appended to my crontab to query my IP address every minute, and if it is not the same with the previous query it sends me an e-mail to inform me for the IP address change. ...
2
votes
1answer
64 views

Lubuntu IP conflict [closed]

I have this friend who recently installed Lubuntu on his Asus Netbook to try it out. Problem is that even though he can find all network connections and after trying to connect to two of them (giving ...
1
vote
1answer
71 views

Interface Priority in the Face of VPN

I have a few interfaces: wlan0, eth0, lo, and sometimes tun0. When I connect to the Juniper VPN, creating a tun0 interface, my existing connections on other interfaces (perhaps with the exception of ...
4
votes
1answer
84 views

Create map network_iface_name <--> IPv4 address

I'd like to implement a bash script that creates a mapping between the network cards (or interfaces) names in my computer and their IP address (in CIDR format, if possible). The goal is having ...
0
votes
2answers
221 views

Give every IP address a different hostname?

I have a Debian server with 4 IP addresses. All IP addresses use the same hostname. Is it possible to give every single IP address its own unique hostname?
0
votes
1answer
141 views

Trying to connect to gateway in static ip network

I have arch-linux-arm running on a raspberryPi. The network I am in uses static IPs. gateway IP is 192.168.178.5 IP for my device is 192.168.178.201 To connect to the internet I use: ip addr add ...
1
vote
0answers
41 views

Get ip of running interface [closed]

Is there a way to get to the ip of whatever interface (e.g. enp0s25, wlp3s0) I am using to connect to the internet? And in a low-resource way I can build into conky? Is it time for me to learn sed and ...
2
votes
1answer
581 views

set ip default outgoing in centos

I have server which has Centos and I want to change the outgoing IP address. This is the output of my route and route list commands. [root@marketport tmp]# route -n Kernel IP routing table ...
1
vote
1answer
42 views

source address chosen in case of multiple IPv4 addresses

I have following four IPv4 addresses configured to eth0 interface: # ip addr show dev eth0 2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 9000 qdisc pfifo_fast state UP qlen 1000 link/ether ...
3
votes
3answers
697 views

Implementing load balancing on any Linux distro

I am thinking of implementing a load balancing solution for personal use. What I want to do, is to maximize data throughput over mobile phone Internet connections. Let me be clear: I have data plan ...
0
votes
0answers
53 views

ORACLE Weblogic IPV6 with oracle database on IPV4

I have one weblogic application currently working on IPv4 and jdbc connection to database is on IPv4. Since my machine has an additional Ethernet port that support IPv6, I am thinking to add an ...
0
votes
0answers
215 views

Apache server in raspberry PI not visible from outside( public IP)

I have made a fresh install of Arch Linux ARM into a Raspberry PI and I mounted there a LAMP, all fresh. I have another Arch(x86) in my laptop with Apache also there, and as far as I know, two web ...
2
votes
0answers
244 views

Network connectivity issue between different hosts from a network namespace in one host

I have created two Ubuntu 12.04 VMs using VMWare Player with NAT network configuration. I am able to ping them from each other. After that, I created a network namespace in one of them and add a ...
2
votes
0answers
64 views

AppArmor Profile: Deny internet access

I want to deny the internet permission for some applications. Therefore, I tried first to deny the internet permission for ping, but it doesn't work. Here is the profile of /etc/apparmor.d/bin.ping ...
0
votes
0answers
27 views

routing based on source IP - a continue [duplicate]

Following my previous question routing based on source IP The source IP floating one and assigned to a cluster (consists from 2 servers). Let's say that the physical IP on server1 is 10.0.0.1, on ...
2
votes
1answer
66 views

How do I get the information I need in order to use unison and ssh to synchronise files

I have a desktop at home, and a laptop that I take with me to places away from home, both have Fedora 20 installed. I edit the same files on either machine, and would like to be able to synchronise ...
0
votes
1answer
370 views

Server Not accepting TCP/IP Connections

I have a Wt application running in a CentOS server machine(Machine A) in the port number 9798. Application is up and I could view the web page with the URL, http://localhost:9798 But application ...
0
votes
0answers
41 views

Connecting one network interface to the Internet disconnects the other interface

We have got an HP-UX server, but whenever I got connected to that machine using the ethernet cable I got disconnected from internet although my laptop has 2 nw interfaces. One wired one wireless. Why? ...
1
vote
1answer
105 views

Debian server doesn't show in DHCP list on router

I have a Raspberry Pi running Raspbian which is connected over ethernet to my router. The router has been running both with DCHP and Static IP addresses and over the local LAN I can connect fine over ...
2
votes
1answer
394 views

Is it possible for DHCP to assign different IP addresses to the same machine?

I have installed and configured a DHCP server on my CentOS 6.5. It works properly and assign IP addresses to the clients machines on my network, and as I noticed when a client reconnect the DHCP ...
5
votes
1answer
154 views

bash_completion rule for resolving ip into hostnames

I am trying to create a bash_completion rule for my script rmpxe. This script takes <hostname> as its only argument. It then resolves this hostname into <ip_address> and removes the ...
0
votes
1answer
41 views

i2b2 VM: Copy VM won't give me a valid IP address (CentOS 6.5 running with VMWare Player in Windows)

Posting on here as well in case this was the incorrect site to post the question. http://serverfault.com/questions/595337/i2b2-vm-copy-vm-wont-give-me-a-valid-ip-address
-3
votes
1answer
356 views

How do I know all IP related to the wireless LAN in ubuntu 14.04? [duplicate]

How I know all IP on my LAN Wireless using ubuntu 14.04
1
vote
2answers
249 views

Does dropbear take care of hosts.allow and hosts.deny?

I'm running dropbear as SSH daemon on Debian (actually Raspbian). I tried setting # /etc/hosts.allow dropbear:192.168.1.1 # my static ip from which I SSH connect to the device and # ...
1
vote
0answers
44 views

How to run a specific TCP client with a different IP?

My server has 3 ips. I use cronjob doing some api job. But this api has some limit: 100 calls/day. So how can i set a special ip for running some special script via cronjob? Thanks. 0,20,40 * * * * ...
0
votes
1answer
533 views

Ping to my own public IP results in host unreachable

First of all, I'm running a Manjaro 3.10 (Archlinux x64) install. I'm trying to make my No-IP configuration work. I have tried to ping my no-ip host and I recieve host unreachable ICMPs only. I was ...
0
votes
1answer
514 views

Ho to bridge wlan0 in AP mode and eth0 so that eth0 is static and wlan0 uses DHCP?

I have a router that provides internet access. Connected to this router is a desktop PC that has working eth0 (static IP address) and wlan0. Also connected to the router is a laptop which I use to ...
6
votes
3answers
757 views

What are the benefits of using several IP addresses on a server?

With ifconfig, I am able to configure multiple IP addresses on a single network interface card. Why would I want to do that and how would I later utilize several addresses, e.g. how does software know ...
0
votes
1answer
611 views

ICMP gives host an impossible redirect

I am having trouble with forwarding on a system which hosts a few headless VirtualBox VMs. I have not changed anything but the configuration has stopped working. The VMs have IP addresses on their own ...
2
votes
1answer
2k views

mutliple default gateways for alias interfaces (SOLVED)

Alias interfaces defined in /etc/network/interfaces cannot have multiple default gateways. Unfortunately I would like to use the same interface to access 2 differents nets, and I need to define 2 ...
2
votes
0answers
27 views

Manually adding static ip not resolved after a while

Hi Unix/Linux community, I have a small problem with a device I am connecting to my laptop, running Debian Linux. While connected to a router on my wlan1 interface (using wicd, if that matters), I am ...
0
votes
0answers
428 views

How to setup a HTTPS Private Proxy Server on Debian 6 vps?

I have no a Debian 6.0 64 bits vps with 29 IP's, this is my first time using this system and I need a little help. First of all, what software do I need, and how can I setup a private proxy server on ...
7
votes
2answers
513 views

SSH session through OpenVPN cuts off / locks up after a few lines

I have a large number of identical fanless PCs running debian 6 (ARM). Most of these are connected via comcast and work ok. There are some that are connected to 'WiMax' modems and are having ...
0
votes
2answers
778 views

How to determine eth0 gateway address when it is not the default gateway?

In my system I have eth0 (which may or may not be connected) and a modem on ppp0 (which always may be up or down). The the case where both interfaces are up and ppp0 is the default route, I'd like to ...
1
vote
1answer
168 views

Masquerade not working sometimes

I have an issue with private network traffic not being masqueraded in very specific circumstances. The network is a group of VMware guests using the 10.1.0.0/18 network. The problematic host is ...
1
vote
3answers
163 views

Enabling IP forwarding at kernel compile time

I am compiling a kernel for a router. I know a way to enable IP forwarding in an existing Linux system. At compile time, CONFIG_IP_FORWARD is said to do the same task. I am configuring version ...
0
votes
1answer
914 views

How to request a specific IP address from DHCP server?

I'm running Angstrom Linux on an embedded device (BeagleBoard-xM). I managed wireless connection via a Wi-Fi adapter. When I load its driver using modprobe, BB-xM requests an IP address from router ...
0
votes
4answers
109 views

Linux routing tables

I'm trying to learn Linux routing tables and ran into bit of snag. In the example below I'm not sure what is happening. My understanding is 0.0.0.0 means that for line 1 and 2 any packets outside of ...
6
votes
4answers
2k views

History of IP addresses that accesed a server via ssh

It has come to my attention that a server of mine has been hacked and infected with a known chinese botnet. It was a prototype/testing virtual machine with its own static IP(US address) so no harm ...
4
votes
1answer
362 views

Why is this static route not taking effect?

Original Question I am running Ubuntu and network manager. I have two different interfaces, eth0 and eth1. Network manager has (as far as I can tell) correctly added this manual route: ~$ ip route ...
2
votes
1answer
161 views

How do I create an IPv6 overlay network?

I would like to create host-only IPv6 networks on two hosts and then route between them. On each host, there will be a dummy interface, at ipv6_prefix::9. I would like to be able to ping that ...
6
votes
3answers
685 views

How does one capture traffic on virtual interfaces?

I would like to capture traffic on Linux virtual interfaces, for debugging purposes. I have been experimenting with veth, tun and dummy interface types; on all three, I am having trouble getting ...
1
vote
1answer
99 views

tcp/ip - trigger action or event after period of no network activity on certain port(s)

Is it possible, perhaps using iptables or one of the wrappers/frontends to iptables, to trigger an action or run a script after a certain period of time has elapsed with no network activity on a ...
4
votes
1answer
181 views

Send traffic to self over physical network on Ubuntu

I have a dual port ethernet NIC and let's say I have connected both ports in a loop and assigned the following IPs to the 2 ethernet interfaces: eth2 -> 192.168.2.1 eth3 -> 192.168.3.1 I want to ...
1
vote
2answers
3k views

Can't access ssh in my VM Centos

My Cento's IP is diferent of the normal. And I cant access it in a ssh command And when I tried access using ssh noting I want to use ssh and samba client, but my IP is diferent. And I have ...
0
votes
0answers
38 views

Possibility to use app in LAN and via Internet

I use web based (https encapsulated) app in my home network and via Internet. The app has dedicated Linux desktop client (I use Mageia ver4 Linux for laptop). Of course server address I have connected ...
0
votes
1answer
121 views

installation causing error

I have downloaded g2ipmsg from http://www.ipmsg.org/archive/g2ipmsg-0.9.6.tar.gz while installation this package it causing some error checking for G2IPMSG... configure: error: Package ...
1
vote
2answers
110 views

What could cause a ping request to return inconsistently timed results

Here is a sample run: 64 bytes from 192.168.1.9: icmp_seq=27 ttl=64 time=8852.917 ms 64 bytes from 192.168.1.9: icmp_seq=28 ttl=64 time=7918.074 ms 64 bytes from 192.168.1.9: icmp_seq=29 ttl=64 ...
32
votes
2answers
2k views

How is it that missing 0s are automatically added in IP addresses? (`ping 10.5` equivalent to `ping 10.0.0.5`)

I accidentally typed ssh 10.0.05 instead of ssh 10.0.0.5 and was very surprised that it worked. I also tried 10.005 and 10.5 and those also expanded automatically to 10.0.0.5. I also tried ...
0
votes
1answer
554 views

SUSE Linux 12 - configuring IP alias

I want to setup an IP address alias on a network card. I created a file /etc/sysconfig/network/ifcfg-ens160 and its contents are: BOOTPROTO='static' STARTMODE='onboot' IPADDR='192.168.0.113' ...