IP - Internet Protocol, the most commonly-used set of rules for dispatching data across a large computer network.

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1answer
41 views

Point multiple ips to one server [closed]

I'm trying to setup a squid proxy on an ubuntu server. I happen to have multiple ip addresses that I bought along with the vps. Is it possible for me to setup the 2 extra ip addresses to point to my ...
-1
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0answers
39 views

What does it represent, when source IP and destination IP are same in Fortigate logs? [closed]

I am working on SIEM, while analyzing FORTIGATE logs I came across a scenario where source IP and destination IP is same. This is a local IP of network where destination port is 53 which represent ...
0
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1answer
68 views

Configure Azure IaaS VM to allow access by IP

I have an Azure IaaS Windows 2012R2 VM which is hosting a test website. The site is accessible externally by the hostname. What do I need to do to enable access to that same site by IP address? When ...
0
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2answers
58 views

How can I see IP addresses attempting to connect to my Amazon EC2?

I have an EC2 instance that is setup as an SFTP server using OpenSSH. It only allows connections on whitelisted IPs via TCP Port 22 (limited via an EC2 Security Group). I constantly have customers try ...
0
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0answers
36 views

Static route to access another IP/SUBNET from PC

Maybe it's a simple concept misunderstand. I'm in a network with ip 172.16.0.xxx (mask 255.255.240.0). How could I configure my PC (Windows 7) with a static route or any other kind of solution so I ...
0
votes
1answer
205 views

How to assign an IP for Hyper-V virtual machine using PowerShell?

I'm working with the Hyper-v and have created a VM using Vagrant. Seems to be in the Vagrantfile I've forgotten to define an IP address (static or dhcp use). Now I can view the info about the VM's ...
1
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2answers
209 views

How to whitelist an ip range blacklisted by Spamcop

Our testing team uses email addresses from a domain which is different from the actual site domain. For example, our site is www.abc.com and email addresses are belongs to user_x@xyz.com. www.abc.com ...
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votes
1answer
51 views

Retrieve old IP settings form Windows

This is pertaining to Windows in general (XP and all recent versions) After replacing an old motherboard with a new one, the NIC is different, has a new MAC address and generally needs a new TCP/IP ...
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3answers
119 views

How to assign multiple public ip addresses

I have a server (Ubuntu 14.04) and want to assign these multiple public ip addresses. Expected: I want to ping all IP-Addresses from XXX.XXX.XXX.128 to XXX.XXX.XXX.143 Current Setup: ...
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votes
2answers
52 views

How could I share a dedicated IP amongst multiple servers?

I'm trying to split up a big server for a few people. They aren't going to run a website on it or anything like that but they want to at least connect to the server remotely. My hosting provider is ...
1
vote
1answer
75 views

Routed traffic away from VPN has no internet (Fedora)

I'm very new to linux routing and such as a preface. I have a plex server set up on Fedora 22. I've recently started using a VPN service connected via OpenVPN. Everything works great via VPN on my ...
0
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2answers
69 views

block ip with iptables ubuntu server

I am trying to block one IP with iptables in my Ubuntu server 12.04. The foreign IP is 117.16.18.95.dyna. You can take a look at the next image: I have added this ip to iptables with the next ...
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votes
1answer
37 views

SMTP Server with dynamic / Static IP

I have 3 servers and 3 IP's. Server 1 - Static IP - 111.111.111.111 Server 2 - Static IP - 222.222.222.222 Server 3 - Dynamic IP - 333.333.333.333 Now Server 3 is always assigned the IP ...
1
vote
1answer
106 views

How safe it is to assume whois ip network /24 belogns to same hosting company?

I found this, but I don't think it answears my question: Is it safe to assume that two hosts on the same /24 network belong to the same AS-number? I have online shop, on which somone is spamming ...
0
votes
1answer
56 views

how to reach a host on a different subnet

I am new to networking and I am trying to work through a problem however I have become a bit stuck. I have a network with a subnet mask of 255.255.255.128, I have connected the routers for each of ...
1
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2answers
67 views

Command-line utility to test fwmark in ip rule / ip route?

I am trying to find a tool that will allow me to find the route a packet will take that comes in on a device, and has a particular destination address. ip route get will do most of what I am looking ...
0
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0answers
11 views

CentOS Drupal Site/Domain Sending UDP Attacks on Different IPs [duplicate]

My Drupal 7 site is hosted on a Cent-OS 6.5 VM. The hosting service provider notified me about an malicious activity on site and site is sending UDP packets on different IPs. Following is data ...
0
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2answers
94 views

Matching an IP address to a hostname when both are available but cannot be resolved

I am an administrator on a server that accepts RDP connections. When the client connects I know the client's computer name. Using netstat I can determine which connections have been established for ...
0
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1answer
83 views

Dual interface/network with duplicate IP (local and extern)

So, i have two virtual network, a machine with two interfaces, each on a different virtual network (but with the same logical network 192.168.0.0/24 both). eth1 : 192.168.0.10 eth2 : 192.168.0.20 I ...
2
votes
0answers
131 views

how to associate a Docker network interface to a Linux network interface (eth5) on Linux host?

My Linux host has 8 Ethernet interfaces, eth0 - eth7. I'm running three Docker 1.9 containers on this Linux host. How can I associate a network interface inside one Docker container to a specific ...
0
votes
2answers
38 views

Implement an IP on Debian to redirect & failover on 2 external IPs

Hello network & sys gurus, I would like to use one Debian server inside a cluster to host a IP 1 redirecting to IP 2, or if IP 2 is not reachable, redirecting to IP 3. IP 2 and IP 3 are hosted ...
0
votes
1answer
13 views

Does LXC support IPSET6+?

I would like to use a new firewall-extension for PLESK on a Proxmox-LXC. Now the support of the firewall-extension wrote me this message: Does LXC support ipset 6+? If not then I wouldn't ...
1
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0answers
101 views

What is a “Top Level IP”, and how do I find the TLIP on my network? [closed]

I am trying to set up Adept (from Synergis) that needs communication between two server machines on our network, and one step is to set up the "Top Level IP" However I am uncertain as to what ...
0
votes
0answers
10 views

rsyslog: Template for hosts sending from 172.16.0.0/12

What is the shortest template to capture all hosts sending from an IP address within the 172.16.0.0/12 network? I would like to avoid multiple :fromhost-ip statements. Basically, I'm trying to create ...
1
vote
1answer
24 views

DHCPD configuration by interfaces

I have two interfaces on a machine running Ubuntu 14.04 LTS. Which has two different interfaces namely eth0 and eth1. I need to give IP addresses to the clients by the interfaces. For example, Any ...
0
votes
1answer
94 views

Perform traceroute with specific outgoing IP

My server has multiple /24 subnets added via network-script files ifcfg-eth0-range0 Now one /24 subnet has connection issues and I need to perform a traceroute to see what's wrong. How can I have my ...
0
votes
1answer
32 views

IPTABLES ban ip if more than X conn per second

I'm creating a small firewall with iptables that limits the max simultaneous connections per IP to 40. So this is my situation: iptables -A INPUT -p tcp --syn --dport 1234 -m connlimit ...
0
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4answers
53 views

How can I tell which static IP address one computer uses to connect to another computer?

I have a workstation connected to several internal networks, with a different static IP address on each of them. Through one (?) of these networks, I can connect to a server over ssh. How can I tell ...
1
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2answers
68 views

Changing DHCP server on Network ramifications?

On our small business network, we've unfortunately got our Cisco RV220 router acting as the DHCP server, but all of our client PCs and Servers are pointing at our Windows Domain Controller running on ...
0
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0answers
44 views

Assigning IP addresses to Docker containers via DHCP accordance with local segment

Here, I want to set the IP address on ubuntu images in accordance with the existing IP Segment in my local. I've configured the Ubuntu images with dockerfile, by installing mc, and openssh in the ...
0
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0answers
44 views

Varnish 4.x Unable to Pass Client IP

I'm currently using varnish to reduce the load on my server, however, because I want to be able to know what IP is being used regardless of my php $_SERVER request method for a visitors IP, I decided ...
1
vote
1answer
38 views

Use NGINX to whitelist IP for specific folder (aka example.com/administrator) [closed]

I am looking for a way to whitelist a specific set of IP addresses for a specific area of my website. For example, I would like to only allow xxx.xxx.xxx.xxx to access "example.com/admin", and deny ...
0
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0answers
24 views

IP range connected to my server suddenly times out

I've been leasing several /24 subnets from an external source and then I had my hosting company route them to my server. I've added the IPs using a network-script file ifcfg-eth0-range1 with contents ...
0
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0answers
51 views

Cisco 2960X & IPDT

I am interested in finding the IP addresses assigned to devices attached to each interface on a Cisco 2960X switch. It seems like IPDT is exactly what I'm looking for. However it seems like the ...
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votes
2answers
133 views

VM migration and IP address

When a VM offering a service is migrated to a different server is it an important requirement from the client applications point of view to retain the same IP the VM had before ? For long lived TCP ...
0
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3answers
59 views

IPv6: Creating ranges, range values

So I've just been assigned a /64 IP address range. I'm using SolusVM to manage virtual machines. With the /64, I am given the first 4 (octets? I think they're called) so my format is currently ...
0
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0answers
43 views

Preventing IP wildcard address from binding to entire loopback range

Servers often use the IPv4 wildcard address 0.0.0.0 to bind to all interfaces, one of these being the loopback interface (127.0.0.0/8). On Windows, is it possible to prevent binding to the entire ...
0
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2answers
71 views

Using real IP on the server

We have dedicated internet connection an our ISP has provided us with some real IP addresses. We have several servers which we use, including a one that has a real IP on it as they enter to the ...
0
votes
1answer
36 views

Deny all kind of access except for ip-range

Hi I'm setting up a little 2012R2 network. Right now I want to setup an DC and connect a few windows machines with it. It's running virtualisied on my root server and unfortunatly I can't put it ...
1
vote
1answer
106 views

ARP Request Being Sent To Different Subnet From Ubuntu Linux

This question is very similar to this one: Linux is sending ARP requests to hosts in other subnets? Main problem - Ubuntu Linux server is sending ARP requests asking for a MAC address of a host on a ...
0
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0answers
37 views

Ubuntu - Destination Host Unreachable Through Router / ARP Requests

Very strange issues on an Ubuntu server running DNS. Here is the network setup. There are two class C network ranges. Let's say they are: 216.107.249.0/24 216.107.250.0/24 Server is assigned an ...
0
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0answers
10 views

debug connection to other server

My server suddently is unable to connect to other servers through Curl, file_get_contents etc. This issue is reported for at least 5 different server Ips. Whereas it still works with many others. ...
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votes
1answer
60 views

Static routing is redirecting

I have one PC with 192.168.x.135 as IP and 192.168.x.33 as gateway; and a Windows Server 2008 with the IP 192.168.x.33. Now I want to route all packages with the destination 14.x.x.x to 127.x.x.x. So ...
0
votes
2answers
74 views

Tracert not resolving IP

I know this is propably a basic question, i did some research on the net as to the whys and hows and got only more confused. I wanted to ask why tracert returns this : Tracing route to youtube.com ...
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votes
1answer
73 views

IP configuration of cluster application to database server

I need to setup the IP of a cluster of applications servers to connect to a cluster of database servers. For 1 to 1, application server to database server is quite easy, but when comes to a cluster ...
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votes
1answer
32 views

Priority of dhcp servers

Let say there is a main Server which is assigning ips by dhcp to 50 different LAN ports in network.Now if at some LAN port we connect a small router on the yellow port(so that all other devices come ...
1
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0answers
24 views

How do you write the following command : if (netstat flag ==UG ) save addres IP [closed]

how How do you write the following command in ubuntu : if (netstat flag ==UG ) thene addres ip > new file I want to file contains : addres ip 152.123.12.1 123.12.12.123 ...
0
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0answers
26 views

Redirect external ip of server to external ip of virtual machine

I have a server with multiple virtual machines. Let's say this is my server ips: Internal 1.2.3.4 External 5.6.7.8 Now, if i go to 1.2.3.4:8082 it goes to my app (I redirect :8082 to de internal ip ...
-1
votes
1answer
37 views

Where to enter these network configuration [closed]

I have a dedicated server which I want to install CentOS 6.6 on. The problem is: The service provider gives me these: Network: xxx.xxx.xxx.xxx/xx Gateway: xxx.xxx.xxx.xxx Server: xxx.xxx.xxx.xxx ...
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votes
1answer
179 views

What Does “ping -f” Do In The OS X Terminal? [closed]

I've recently read about the command in the OS X terminal, "ping -f (Target IP)". I haven't been able to form an understanding on the command even after looking through numerous online articles. I ...