problem about ipv4-Collection of common programming errors
datenwolf
ssh ipv6 ipv4
I’m currently stumped by a strange problem. I have a dual stack host to which I want to SSH. If I connect via IPv6 everything works like expecteddatenwolf@foo ~/ > ssh -6 bar.example.com Password:datenwolf@bar ~/ >However when doing the same via IPv4 it failsdatenwolf@foo ~/ > ssh -4 bar.example.com Password: Permission denied (publickey,keyboard-interactive).datenwolf@foo ~/ >Excerpt from /var/log/sshd for the failing loginApr 24 16:34:03 [sshd] SSH: Server;Ltype: Version;Remote: ww
D3vtr0n
ftp scripting powershell ipv4
I am having Powershell FTP script problems. I have pulled my hair out over this one.I recently setup an “automated build server” for my software projects. All software projects get built and bundled into a zip file. In theory, this zip file will be downloaded via FTP to several different servers. I am trying to build a powershell script that will download my package and unzip it into the desired directories.The part I am having problem with is downloading the file via FTP. I am able to access th
zigg
linux centos multicast ipv4
A CentOS 5 system does not appear to come out-of-the-box with a route for multicast traffic. What it does appear to do is use a default route, if configured. In other words, a routing table like this:# netstat -rn Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 10.42.128.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 0.0.0.0 10.42.128
MarkR
networking udp multicast ipv4
How should I choose an IPv4 multicast address for my application’s use? I may need more than one (a whole range perhaps ultimately) but just want to avoid conflicts with other applications.Packets will be entirely contained within an administrative domain, probably a LAN If several independent instances of my application are in use on the same network, they could each use their own multicast address – but if they don’t, they will be able to coexist anyway, they’ll just have a small amount of ove
oKtosiTe
windows-7 ip-address tracking ipv4
I have an ISP that serves semi-permanent IPv4 addresses. They can’t promise fixed IP addresses, but unexpected changes are quite rare.This begs me to ask however: what would be the easiest/most reliable way to track my home IP address so I can access my (Windows 7) home server even in the case of an address change?Please note: for reasons that I don’t want to go in to, I’d like to avoid using any “dynamic DNS” type services. Instead I’d prefer some way to perhaps have the home server leave an oc
Neil Barnwell
networking home-networking ipv4
Set-upI have three computers on a home network. No domain, just using Windows “workgroup” functionality. I’m using Input Director from a desktop Win7 PC to control two laptops (one Win7, one WinXP)Problem SymptomsEverything was fine until I rebooted the Master. When it came back up Input Director was working with “barney” but not with “laptray”. I’ve found that the problem is a more general networking thing where Input Director was simply the first thing I noticed fail. Subsequently this is what
Reece45
ipv6 pci-dss ipv4
Right now, we have a rack of servers. Every server right now has at least 2 IP addresses, one for the public interface, another for the private. The servers that have SSL websites on them have more IP addresses. We also have virtual servers, that are configured similarly. Private NetworkThe private range is currently just used for backups and monitoring. Its a gigabit port, the interface usage does not usually get very high. There are other technologies we’re considering using that would use thi
Flexo
android networking ipv6 ipv4
Is it possible to set the IP address of an interface in Android within an application? I can query the available interfaces and their current addresses using java.net.NetworkInterface, but this doesn’t provide a facility to change these. Did I just miss something somewhere or is it not allowed?I was hoping to be able to make my application either change or add an alias to one or more of the existing interfaces at runtime on an “off the shelf” device. (2.1/2.2). Ideally I’d like to do this for bo
lwood
ubuntu nginx ipv6 ipv4
In my nginx (1.4.2) setup on Ubuntu 12.04, I have set up only one configuration file (I deleted/disabled the others):server {listen [::]:80 default_server;location / {root /home/lwood/websites/default/public;} }I have restarted nginx.Why does nginx not accept IPv4 connections? Here are the docshttp://wiki.nginx.org/HttpCoreModule#listenThey mention thatIn Linux by default any IPv6 TCP socket also accepts IPv4 traffic … the runtime parameter: net.ipv6.bindv6only which has the value 0 by default
RidDeBakTiYar
windows-7 networking ipv4
I have a Netbook with Win 7 Starter edition. I am not able to get IPv4 enabled/installed in the Netbook and hence not able to network/connect to Internet. It says “Limited access” when I check connections.It all began when my system crashed and I was not able to get thro beyond the boot screen. The system advice me to try repair with the original OS cd and I did the same. After that the Netbook has booted, but is not able to network. On a detailed study I found that the Network adapter has both
ServerSideX
networking freebsd freenas ipv4
I have freenas installed and it’s worked fine from day one. I’ve moved to a new data center and therefore, need to assign this a new /29I’ve logged into the console using a crash cart, followed example 2.5a in this link http://doc.freenas.org/index.php/Initial_SetupNo issues, except the “You may try the following URLs to access the web user interface:” message still shows the old IP address from the old facility, even after reboot and updating it via option 1.What to do from here? I even edited
Flamewires
networking linux-kernel iptables ipv4
Hey. I’m running cent 5.5 64-bit, 1 nic, eth0. I enabled ipv4 forwarding via:echo ‘1’ > /proc/sys/net/ipv4/ip_forwardand the machine locks up. cant switch ttys cant ssh into it. Had to hard reboot. Any ideas? I did this on a similar box a week ago with no problems. Id rather not take this machine down again needlessly, so, any ideas?
user156165
centos ipv4
How would I go about adding 3 IP’s to my eth0.When I tried the following, the whole network crashed.ifconfig eth0 192.95.22.105 netmask 255.255.255.0 gateway 198.27.64.254How would I go about adding more IP’s to my CentOS server?
Qwertie
.net ipv6 ipv4
I’d like to write a fairly simple client-server network app. I only use a pure IPv4 network, but it would be nice to future-proof my code. I’ll probably be using TcpListener/TcpClient, because preliminary investigation of WCF reveals it to be overly complex to set up and hard to grok.For the client side, does .NET provide a facility to automatically decode a string that contains an IPv4 or IPv6 address (where the IPv4 address includes a port number)? Bonus points if it can resolve a domain name.
Spiff
ip routing subnet ipv4
In the Wikipedia article on CIDR, it says The Internet Engineering Task Force introduced CIDR in 1993 to replacethe previous addressing architecture of classful network design in theInternet. Their goal was to slow the growth of routing tables onrouters across the Internet, and to help slow the rapid exhaustion ofIPv4 addresses.How does allowing the subnetting, or splitting up host addressing, “slow” the growth of IPv4 down?[EDIT]To my understanding, CIDR (or subnetting) is simply subdividing a
Jayan
windows postgresql ipv6 ipv4
I am trying to package postgres from one machine to another. The source is windows 7 with IP V6 and target is windows XP with IPv4.Starting postgres on windows XP gives error2010-11-01 12:01:07 IST LOG: invalid IP address “::1”: Unknown host 2010-11-01 12:01:07 IST CONTEXT: line 76 of configuration file “C:/postgres/data/pg_hba.conf” 2010-11-01 12:01:07 IST FATAL: could not load pg_hba.conf– postgres – sharing same pg_hba.conf between IpV4 system and IpV6 systemHere is how my pg_hba.conf lo
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