In one of my customers, the new internet connection have no public IPV4(using GCNAT), only public IPV6.
And there are various services that require external access, like, vpn (openvpn), a java/web system, ssh, rdp(windows).
fileServer(by vpn).
All is running ok in IPV4.Maybe, the solution is a NAT 6to4. We know this is the future, no more public IPV4.
1 linksys router: gets the net from PPPOE and give the network DHCP. The router IP is 192.168.1.1. 1 windows laptop that work wireless and wired. 1 debian desktop that work wired and not working wireless. THe problem with the debian desktop is like this: I have a TP-Link TL-WN321G installed and found by lsusb command. I make a wireless connection WPA Personal (just like the router settings) it says i am connected to the wl network but no internet connection. the route command give me this:
[code]....
I tryed with wicd who said that the connection is WEP (and it's not, it is setup to WPA on the router and the network-manager conncetion) and when i try to connect i get bad password. I tryed with network-manager uninstalled and no chance.
How can I forward all traffic from a public IP to another public IP. Let's say I have a first debian box named box1 with eth0 = 1.1.1.1 and eth0:1 = 1.1.1.2 and I want to forward all traffic from 1.1.1.2 to "box2" located somewhere else over the internet and having for eth0 2.2.2.2 Both 1.1.1.0/24 and 3.3.3.0/24 are public IP ranges.
View 1 Replies View Relatedsetting up NAT and firewalling for both IPv4 and IPv6. The machine is headless, so everything must be configured via CLI. I've done all IPv4 firewall configuration writing iptables rules in a bash script so far
View 1 Replies View RelatedI rebooted my vServer (Debian 8) and it doesn't came back up. Well, I used the rescue console on my server and the server seems to be running fine, except the network was broken. So I tried 'ifconfig' but nothing came up. So I tried to enable my interface with 'ifconfig venet0 up', and now it appears in my ifconfig list
Code: Select allroot@i67svof:/var/www# ifconfig
venet0Â Â Link encap:UNSPECÂ HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00Â
     UP BROADCAST POINTOPOINT RUNNING NOARP MTU:1500 Metric:1
     RX packets:557 errors:0 dropped:0 overruns:0 frame:0
     TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
     collisions:0 txqueuelen:0
     RX bytes:36463 (35.6 KiB) TX bytes:0 (0.0 B)
My HWaddr doesn't look that well :) 'ip addr' prints this result:
Code: Select allroot@i67svof:/var/www# ip addr
1: lo: <LOOPBACK> mtu 65536 qdisc noop state DOWN
  link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: venet0: <BROADCAST,POINTOPOINT,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN
These are the last lines in /var/log/syslog:
Code: Select allroot@i67svof:/var/www# tail /var/log/syslog
Feb 20 11:34:16 i67svof systemd[1]: Stopping memcached daemon...
Feb 20 11:34:16 i67svof systemd[1]: Stopping Network Name Resolution...
Feb 20 11:34:16 i67svof systemd[1]: Stopping Regular background program processing daemon...
Feb 20 11:34:16 i67svof systemd[1]: Stopping Login Prompts.
[Code] .....
And finally my network config in /etc/network/interfaces
Code: Select all# Auto generated lo interface
auto lo
iface lo inet loopback
# Auto generated venet0 interface
auto venet0
[Code] .....
Had an issue on one of my Debian stable servers the other day. After doing apt-get upgrade I was prompted to do autotoremove.
It wanted to autotremove
Code: Select allStart-Date: 2015-12-21Â 16:25:05
Commandline: apt-get autoremove
Remove: sendmail-cf:amd64 (8.14.4-8), exim4-config:amd64 (4.84-8), sendmail-base:amd64 (8.14.4-8)
End-Date: 2015-12-21Â 16:25:07
After doing this I rebooted my server (a few days later). After rebooting I had no ipv4. I tried statically assigning IP addresses to no avail. Ran ifconfig eth0 down/up which got me nowhere. Eventually decided to ask "Okay, what changed". Started installing packages that were autoremoved. Had to install from the apt cache using dpkg. First one I tried was sendmail-base. Then did ifconfig eth0 down/up, which gave me networking back.
I have checked the dependencies for sendmail-base and I see nothing that would relate to networking, so I'm really confused on why this happened. I had backups of the server so I went a week back and noticed sendmail-base was installed at that time. So I went a day back, where sendmail-base wasn't installed, and installed it. Sure enough it brought back networking. I'm just stating this because it is more proof that sendmail-base was the missing component.
When I make a vpn connection to an openvpn server, I loose the internet connection.
The VPN works all right.
Server config (extract)
Client config
Client route without the VPN connection
client route with VPN connected (internet lost)
Is there anything I can do to the push rule of the servers's config file?
I am using Empathy IM client to access to gadu gadu and to message with my friends. The strange thing that is happening is that I keep on being connected and then disconnected and then connected again even if I am continuously connected to my internet connection (no problem when surfing or using skype for example)It also seems to come only from me because when my girlfriend is using the same gadu gadu on her windows laptop simultaneously, she doesn´t get disconnected (whether when she is at home and using the same connection as I am or when she is outside, meaning that it doesn´t seem to come from the whole gadu gadu network)maybe it has something to do with the ports that gadu gadu is using but it is strange that sometimes it is working for a period of time and then not and then again.
View 1 Replies View RelatedI have just installed Debian Squeeze on my spare computer (dual booted with Ubuntu 11.04) and I cannot connect to the internet using Squeeze. Due to my ISP, I have to manually connect this computer and on Ubuntu copying and pasting a text file such as this into the terminal works with no problems.What do I need to do to manually configure my Squeeze internet connection?
View 5 Replies View RelatedI replaced my motherboard and processor but am keeping my old hard drive without reformatting it. Things work well except that I cannot connect to the internet. I am thinking that I just need to reconfigure the connection to see the new network hardware. I tried /etc/init.d/networking restart but that doesn't do anything. What am I missing? By the way it is a wired connection - not wireless.
View 6 Replies View RelatedAMD 64 Upgrade to testing last night killed my internet connection. The lan works, I can ping the dns server from my IP, however no mail, browser possible. Is something in testing broken again?
View 5 Replies View RelatedI'm going to start using Debian as my desktop system rather than Ubuntu since I'm not really liking all the crazy eye candy and just wanted a fast and simple system. My main problem is networking, I guess I'll start off with my system specs and other information for problem solving.
My specs are:
- Intel Core i7 2600K CPU
- Gigabyte Z68X-UD3P-B3 Motherboard
- 8GB DDR3 1600Mhz RAM
I have a Realtek RTL8111/8168B Ethernet Adapter builtin to my motherboad which I am using, I could only get a basic connection, by basic I mean that it allowed me to connect to my local area network but not the internet. I then modified /etc/NetworkManager/NetworkManager.conf to change to managed=true this allowed me to use the internet, but the problem is, that it is a very unstable connection, the speed is very slow and it drops a lot! I have to carry on running /etc/init.d/network-manager restart twice to get my connection back, which lasts for about a minute.
output of lspci | grep -i eth
07:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168B PCI Express Gigabit Ethernet controller (rev 06)
Output of cat /var/log/dmesg | grep -i eth
[ 1.414250] r8169 Gigabit Ethernet driver 2.3LK-NAPI loaded
[ 1.415080] eth0: RTL8168b/8111b at 0xffffc90000c7c000, 1c:6f:65:c5:7c:34, XID 0c900800 IRQ 31
[ 9.213351] r8169: eth0: link up
[ 9.213392] r8169: eth0: link up
[ 13.813496] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
I have no idea how I managed this, but I am able to connect to the internet but NetworkManager doesn't show any connection. This means that until I kill it, I cannot log in with Pidgin, because it is waiting for a connection.
Do I disable NetworkManager completely or do I try to make it recognize that I am connected to the Internet? If the latter, then how should I go about? (Please let me know which files I need to show you, because I know I've messed around with a couple).
I had some trouble with the netinst CD and I had to install lenny with the 6DVDs instead. My internet connection only works after I edit the interfaces and resolv.conf files manually. So my question is: can I do that from the netinst CD before it actually needs the connection to install everything? (otherwise I'll just need to use the DVDs.
View 4 Replies View RelatedI installed Chromium Browser and made it default. The version which is available through squeeze and wheezy main is a dinosaur, and as such I cannot install any Chrome addons. I tried ubuntu or launchpad ppa for Chromium-Daily. I added [URL] maverick main to my Third party Repositories. Its not working.
The terminal returns an error:
W: GPG error: [URL] maverick Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5A9BF3BB4E5E17B5
I've installed it properly until it works now, it does send emails and receive them, but heres the problem.
1) it does not send emails to a certain domain, unless i do dpkg-reconfigure on exim4 and put the domain on allowed relay... can't i just put something on settings which allow to send emails to ALL domains?
2) EVERYONE can connect to the server by telnet from any position, terminal or pc, and just use an existing user to send emails to anyone.... example, i have testuser123 setted up in debian/exim4 .. then they simply write "mail from:testuser123@host.dot" and the server accepts it.. without even request an authentication for that. And this is a problem, because everyone can use my email addresses to send emails to whoever.. heaven for spammers/hackers..
Just added Squeeze multimedia repositories in source list,but get this after reload :
W: GPG error: ftp://ftp.debian-multimedia.org squeeze Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 07DC563D1F41B907
However,update for Audacity & Mplayer showed in Update Manager,and I successfully updated.
My ethernet controller is configured as such:
My /etc/resolv.conf file is normally just set up to use Google's public DNS:
When I connect to the network at the university library, it totally overwrites my /etc/resolv.conf file to something like:
This is pretty annoying, so I tried comprimising by making a file with the school's domain and search entries plus the Google nameservers, then revoking write permission on the file. However, I couldn't access any domain name with this config on their network, so I reverted to using their nameservers. I keep all the school's entries commented out when I connect to my home network.
My ultimate question is what is actually overwriting the file? I suspect that my connecting through DHCP is responsible. Whatever it is, I'm pretty annoyed that no back up file was created.
I'm trying to give some windows users a permanent connection to a samba share behind a firewall over the public Internet. I know I can give them access with something like winscp (which they have done) but really I'd like to do it with a VPN so it seems seamless to the user. However I have no idea how to set up the server to support this and am finding the documentation a bit confusing. The samba share is on a Debian box and the firwewall is a Linksys WRT54GL.
View 1 Replies View RelatedI'm forging a gateway server, We have 2 Internet connection that goes to a load balancer router, and goes to my centos server and from our server goes to a switch for Internet distribution or routing.
OS-CentOS 5.5
[root@server etc]# uname -srio
Linux 2.6.18-194.el5 i386 GNU/Linux
My eth0 and eth1 has the following configuration and IP
[root@server etc]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
# VIA Technologies, Inc. VT6105/VT6106S [Rhine-III]
DEVICE=eth0
BOOTPROTO=none
[code]....
Disabling IPv4 packet forwarding but i already changed it to 1 at sysctl.conf One of the online forum says i need to configure the named.conf deleted some and run it(named.conf) and successful but still when I run network service I still get the :"Disabling IPv4 packet forwarding: net.ipv4.ip_forward = 0" The network is getting the IP range but it doesnt get any Internet connection.
The situation: The office has a WiFi network on one DSL line, which is used for our VoIP call center, and a wired network for our internal network and the majority of web surfing/traffic . Part of the office must be temperature controlled/monitored - we have a rather nice digital thermometer which is WiFi enabled.I have a Debian Wheezy box with a WiFi card and ethernet connection
What I'm trying to accomplish:Connect wifi enabled thermometer to WiFi network so it can automatically send temp updates (currently I have to do it manually via USB)Have the Wheezy box accept the downloaded file then send it to a back up server in the wired network
Side things that may be useful : Prefer to use wired connection for internet and apt and suchWiFi connection will really just be used for connecting to the thermometer
This [URL] .... topic got me thinking that there might be a way to bring the two networks together, but I don't know if that will wreak havoc on things. I know, the Windows and Mac OS don't like having ethernet and wifi at the same time, might Linux be better for this?
v&n had this to offer in the prior thread [URL] .... which I'll be doing more research on.
I want to modify apache IPv4 configuration to IPv6 configOn both windows and ubuntu.
View 1 Replies View RelatedI am new to UBUNTU. I installed the latest one alongside windows 7. I am having problem with the internet connectivity. I configured the static ip settings right I guess. Edited the Auto eth1 and assigned ipv4 settings manually and entered everything correctly.
Address 192.168.xx.xx
Netmask 255.255.255.0
Gateway 192.168.xx.xxx
DNS Server xxx.xxx.xx.x, xxx.xxx.xx.x
Do I have to put MAC Address as well? Which is addressed as 'Network address' in Windows where I put this MAC. I have on board Realtek RTL8101E Family PCI-E Fast Ethernet NIC (NDIS 6.20) Network adapter. Do I have to install the driver?
Why everytime I send apt-get update I got this error on the last lines? Reading package lists... Done W: GPG error: [URL] Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 8F91B0E6C862B42C Here is my /etc/apt/sources.list
[Code]....
I have a debian server installed with a static ip. Now i am able to ping my ip, but when i try to configure a domain name with the nameserver as my ip, i am not able to ping the domain name
eg:
I am running Ubuntu 10.10, and I would like to use my computer to share the internet connection from an ethernet port. For example, I would like to set up my computer as a wireless access point so I can create a network that other computers can connect to for internet.
View 3 Replies View RelatedI am setting up a server on a Intel Nuc PC. I have a problem though. I cannot get it to find a IPV4 address.
View 14 Replies View RelatedMy Debian Jessie system started to bug after a separate /usr partition being full. After redimensioning and various packages reinstalls I fall on this:
systemctl --user status Failed to get D-Bus connection: Erreur inconnue -1
I am working on a cross-platform application for Linux ,Apple and Windows, so I have a full tower system with four SATA hard drives that be selected with a switch, so that I can change drives and operating systems at will. -sort of makes me a jack of linux systems, but master of none.It's important to mention this, because it shows the strangeness of the problem as it is isolated to Debian* systems.
So where does debian/ubuntu get it's information to establish a network connection?How do I rectify the problem? I can hardly blame the hardware (RTL8111B), because the problem is isolated to Debian systems.
I am planning to install debian in my pc,.I have xp in one partition and want to install debian in 4gb partition (+500mb for swap).PC: intel p4, 3.0ghz, 1gb ram i install debian from net-install cd without internet connection? If so, after installing the cd can i connect to internet using my usb modem (T-mobile/Huawei modem UMG1831). In case of ubuntu i heard of an app to switch the device between mass storage and modem. How in Debian?
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