Networking :: How To Implement Internet Traffic Quota

Mar 30, 2010

I'd like to allocate a certain quota to my local user for their internet navigation.

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Server :: How To Implement Quota In Squid

Jul 31, 2010

How I can implement quota for my webproxy users in squid?

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Server :: Implement Quota Per Group Users?

Nov 12, 2010

I want to implement quota per group users like this: Assume i have a Student group in my system, that student1 and student2 and student3 are three users in this group. i want to set quota 100GB per each user in this group, 100GB for student1, 100GB for student2 and .... The problem is when i set quota per group i cant say each user in that group have 100GB quota limit, also when i set quota per user, i should set one by one for each user.I want to know, is there anyway for set quota for all users in specific group?

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General :: Implement Squid With Quota Restriction Based On Username?

Jan 20, 2011

I want to implement squid with quota restriction based on username.

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Ubuntu :: Internet Traffic Flow Monitor - Track Traffic Of Each Device

Apr 27, 2010

We have something on our network that is reaking havoc with our content filter. I am trying to track it down, but so far I have been unsuccessful. We have approximately 500 devices in 100+ different locations spread across 9 states. Looking at each computer is not really feasible.

I need a machine that can sit in between our network and our internet connection and graphically monitor in real time and logs how much traffic each device is sending and receiving. It would need to sit inline so it has to have two nics and be able to pass traffic. The machine also needs to be transparent. Reconfiguration of our routers or workstations is not an option.

I have used ethereal and wireshark before. Ethereal may be a viable option, but wireshark seems to provide lots of information, but no practical way to make use of it. how to set up the box to be a transparent device on the network that will allow internet bound traffic to flow (freely)?

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Networking :: Routing All Traffic To Internet Through A Box?

Oct 6, 2010

I am sharing my DSL internet connection using a modem+wireless router (single device) to 5 systems. I want all my internet traffic to go through one of the linux boxes in my network.

The problem here is that wireless devices connect directly to the modem+wireless router.

Is such routing of traffic possible??

PS: I am not sure if i could convey my situation clearly...

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Fedora Networking :: Internet Traffic Monitor ?

Mar 9, 2009

Is there a nice easy to use tool that displays (in KB/s) the internet traffic from every IP on a network?

Currently I'm using iptraf, but it's very hard to understand at times.

A little info on my network:

I'm using SNAT for internet sharing.

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Networking :: Forwarding All Internet Traffic Through Proxy

Jul 19, 2011

My PC is part of a LAN so while configuring eth0, we specify the Gateway to access all other resources in the network. The PC successfully access Internet through a proxy server configured in Mozilla(manual proxy config) but the update option or the Synaptic Pkg mngr are not able to access internet anyway. I have tried the option "Apply System Wide" in "Network Proxy" but no progress so far.

I also tried to forward all request coming for udp/tcp on port 80 to the proxyserver on a specific port, but with no success. Also I can't ping any website from terminal, reiterating the fact that I can access internet in firefox through the proxy on a specific port.

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Networking :: Route Internet Traffic Over Second IP Address?

Mar 4, 2010

My ISP has given me 3 IP addresses to use for the internet (, and

If I do a "wget" or netcat into another server, I am appearing as do I change my route (command line) in linux to route internet traffic through

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo

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Networking :: Route Internet Traffic Over Tun0?

Mar 28, 2010

I have eth0 and tun0. tun0 is a VPN tunnel going over eth0. Everything on the other end is setup and working fine, when I type Code: traceroute I see my the ping is going over (eth0). When I then type Code: route add -net netmask dev tun0 traceroute I see ping is going over (tun0) instead of eth0, so that is working

What does not work however is when I do Code: route add -net netmask dev tun0 traceroute I get no ping! I believe the problem is because all traffic is routing over tun0, which means even the VPN tun0 needs to go through eth0, it can no longer do this. Is there a way around this where I can route everything except for (which is my VPN gateway for tun0)?

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Fedora Networking :: Monitor Broadband Internet Traffic Only ?

Aug 23, 2009

I have a 2 machine LAN with both machines having an ethernet card and a wireless card. There is a Netgear router, both eth and WiFi, allowing both machines to access the internet.

On my Linux machine I am looking for some software that allows me to keep track of my broadband usage on that machine, excluding traffic between the two machines.

There are numerous such programmes for this in XP, which use Winpcap and a GUI frontend. The "other" machine on my LAN is XP and uses just such a program.

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Ubuntu Networking :: Control Internet Traffic Without Router?

Jul 27, 2010

I have a desktop, a laptop, & a wireless router. The router, unfortunately, doesn't support dd-wrt, tomato, etc firmware, but I would still like to prioritize voip/web browsing over bulk Internet traffic. I hope I can offload the router's missing QoS to my desktop.

Is it possible to have the laptop's connection go from the wall to the router to the desktop, where the desktop could perform the QoS of tomato, then continue on to the laptop? I'm a bit of a noob to networking (subnets?) but do well enough following good instructions.

As for the program that would do the QoS... Don't some Linux machines basically work as super-powered routers for businesses? So there must be some package but couldn't find one. The closest I got was wondershaper but it only shapes traffic for the computer on which it's installed; it might form part of the solution but falls short on its own. other devices should be able to access the Internet normally if the desktop is turned off, & work with other devices like a (jailbroken) iPod Touch.

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Ubuntu Networking :: Second NIC (Wireless) Not Taking Any Internet Traffic

Feb 8, 2011

I have the standard wired LAN NIC and a wireless NIC installed. What my problem is, the wireless NIC will not take any internet traffic. The LAN connection gets it's internet from my LAPTOP with a Clear 4G module. I have a very strong wireless connection, but when I remove the LAPTOP from the network, I get nothing on my Ubuntu computer here, even though I have a solid connection. What is needed in the config to let the wireless run in the "back up" internet connection mode?

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Networking :: Can OpenVPN Be Used To Hide Or Encrypt Internet Traffic?

Aug 31, 2010

I have some questions about openVPN. I am wanting to hide my downloading through transmission and I'd like to know if I can use openVPN for this? Also do I need access to a server? I don't understand how it all works.

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Networking :: Iptable Command To Allow Traffic To Internet But Not Subnet?

Jun 3, 2010

My internet gateway is with a subnet mask. I have a router connected to it running ddwrt with an ip creating a second subnet behind it. I have a tenant moving in that will be wirelessly connecting to the ddwrt router, so to the subnet. What I am looking for is a rule that will pass internet traffic to and from this client, but restrict him access from the subnet otherwise. The ddwrt router is connected to the gateway through its wan port, btw. For example, the client would get an ip address of wirelessly from the ddwrt router. I want him to be able to surf the internet through the gateway, but not to have any other access to the subnet (ideally not have access to ANYTHING besides the internet).

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Ubuntu Networking :: System Monitor Doesn't Show Internet Traffic?

Mar 8, 2011

Ubuntu system monitor applet doesn't show internet traffic although my wireless is working just fine. I use a conky to monitor bandwidth through vnstat and had no problem till I upgraded to maverick.

wlan0 Link encap:Ethernet HWaddr 00:24:d2:c4:3e:da
inet adr: Bcast: Masque:
adr inet6: fe80::224:d2ff:fec4:3eda/64 Scope:Lien


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Networking :: IPtables: Route Outgoing Traffic From Internal Host To Only Go A Internet Interface?

Nov 21, 2010

My Ubuntu Box has 3 interfaces. eth0 (Internal (External ISP DHCP)eth2 (External ISP Static IP)I need the outgoing traffic to internet for 1 of the internal pc ( to only go only go through eth2

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CentOS 5 Networking :: Configure Firewall - Allow And Forward All Traffic On Eth0 And Block All Traffic On Eth1 Except Ssh Ping

Sep 29, 2010

I need to set up my centOS computer as a firewall in my home network. Ive got 2 interfaces, eth0 and eth1. I want to allow and forward all traffic on eth0 and block all traffic on eth1 except ssh, ping(icmp) and DNS. How do I do this? Ive tried some editing in /etc/sysconfig/iptables but no luck.

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Networking :: Server To Block All Traffic But US Only Traffic?

Mar 15, 2011

I wanted to tell my server to block all traffic but US only traffic. So i followed this guide:[URL].. Now I know, it's the best way to help prevent hackers/crackers (doesn't matter to me what they are called. I just have to stop them). My server only deals with US clients anyways so might as well just start right there for my server's security before getting into the brute force and injection preventions. So I got it all done compiled everything moved to the proper directory. I then started to setup my iptables. Like so

Code: iptables -F INPUT
iptables -F OUTPUT
iptables -I INPUT 1 -s *.*.*.* -p tcp --dport 22 -j ACCEPT
iptables -I INPUT 2 -s *.*.*.* -p tcp -j ACCEPT


After seeing that i went digging in the code and figured it was something todo with memory allocation.

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Server :: PPTP Traffic - Gre Traffic Is Being Generated During The Browsing / Reduce Traffic

Sep 27, 2009

Recently I notice that when I'm connected to an vpn server (pptpd) and I'm using it as a default gateway my download and upload speed decreases almost to the half of the usual speed. I made a test using iptables in order to count how much GRE packets are generated (except the real traffic itself) in that way:

iptables -I INPUT -p gre -j ACCEPT
iptables -I OUTPUT -p gre -j ACCEPT

iptables -I FORWARD -s -j ACCEPT
iptables -I FORWARD -d -j ACCEPT
The first 2 rules match all GRE packets between the pptpd server and client, and the next rules - the traffic between the server and the client.

When I turn the counters to zero and begin to generate traffic (to browse, to download etc.) I see that the GRE packets are even more than these in the FORWARD chain.

So, my question is first of all is my test correct and is it true that so much gre traffic is being generated during the browsing (it becames clear that the traffic is double than if the pptpd wasn't used as a gateway) and if yes - can that traffic be reduced?

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Ubuntu Networking :: Set A Storage Quota For Samba Shares?

Mar 19, 2010

Is there a way I can set a storage quota for samba shares, so that way a user can only store up to 2gb of data in a certain share?

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Ubuntu Networking :: File Sharing On LAN / Password & Quota

Nov 2, 2010

I was wondering if it was possible within Ubuntu to:

a) Make a shared folder to the extent that people can view it but to access/open it requires a password.
b) Set that folder to have a set size (quota) so that people putting files onto the store/folder don't flood my computer with video/music.

I am currently at Loughborough University and am on their LAN as I type.So guys/gals are there any programs on the synaptic that do such a job or does Ubuntu already have an inbuilt way of doing that.

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Networking :: Which Tool To Track Scheduled Download Quota

Jul 24, 2010

My ISP has implemented a download quota between the "peak" hours of 8am and midnight. It is restricted to 100GB over a rolling 30days. I would like to track peak and off peak if possible, but only peak is really necessary.

Prior to the limits in certain hours I was using VnStat with a couple of home made scripts to log usage and calculate the rolling 30 days total. I don't really know how to tackle changing it to log only limited hours and am fairly certain my scripting skills just aren't up to it.

Is there another tool that can do what I need, I would very much prefer a console based solution. If it is console and only handles peak and off peak then I can try and script for the 30days again.Or has anyone managed to script something like this parsing from VnStat already ?

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Server :: No Internet Traffic Through The PPTP VPN Connection?

Feb 21, 2011

everything works fine, clients can connect to the vpn server with no problems and they can ping local machines! but no internet access through the vpn connection unless i uncheck the default gateway option on my client machine which is not what i want. I want my clients to get my server's ip address. my server is behind a router (router's ip : | server's local ip: so i used localip & remoteip in pptpd.conf. it think there is something wrong with routing or firewall rules, because it seems that the DNS resolution works .. when i try to browse a website my browser says "Waiting for" and it stays on that stage forever ! the funny part is that works fine (don't know how).

p.s :
* I have already opened the port in on my router. I even tried it locally to make sure that the router is not the problem here. * already added ms-dns / ms-dns to pptpd-options. (found another guide that suggested to do this, before adding these two lines even dns resolution was not working.)

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Software :: Sudo IPTables - No Internet Traffic

Jul 6, 2010

I do $ sudo iptables -A INPUT -p TCP -i eht0 --destination-port 80 -j ACCEPT
and then $ sudo ufw enable but I still get no internet traffic. What is wrong? Shouldn't opening port 80 to TCP allow the packets though my firewall?

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Ubuntu :: Conky Code To Record Internet Traffic?

Feb 5, 2011

this is the conky code I found, that displays on conky the way I like, problem is everything shows as 0bytes, and stays that way.

# A comprehensive conky script, configured for use on
# Ubuntu / Debian Gnome


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Ubuntu Installation :: Redirect Internet Network Traffic Through Server?

Sep 30, 2010

I tried to setup a home server that will redirect the internet traffic through the server before it reach the client. Because i don't want to install anti virus on every machine, it will slow them down a lot. There are some anti virus for ubuntu. Most of my home machines are running windows, which is a pain with virus.

p/s: I'm running 1 ubuntu server 10.04 and the rest are windows 7 machines.

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Ubuntu :: Program To Record Internet Traffic - Gigabytes Per Month?

Jan 16, 2011

Were we are we are now getting dinged by the gigabyte were up till now it was just a monthly cost for unlimited use. I guess they are fishing for more profits anyways I need a program that will record/track my monthly usage is their anything available like this for ubuntu?

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Networking :: Implement Openswan In RedHat5 - Pluto Not Running

Jan 21, 2009

When implement openswan in redhat5 and start ipsec appear this problem
whack: Pluto is not running (no "/var/run/pluto/pluto.ctl")
what this file contain

and when run this command
ipsec verify
Checking your system to see if IPsec got installed and started correctly:
Version check and ipsec on-path [OK]
Linux Openswan U2.4.10/K2.6.18-8.el5 (netkey)
Checking for IPsec support in kernel [OK]
Testing against enforced SElinux mode [FAILED]

SElinux is running in 'enforced' mode. Since no working SElinux
policies exist for Openswan, SElinux should be disabled.
echo "0" > /selinux/enforce (or edit /etc/sysconfig/selinux)
NETKEY detected, testing for disabled ICMP send_redirects [FAILED]

Please disable /proc/sys/net/ipv4/conf/*/send_redirects
or NETKEY will cause the sending of bogus ICMP redirects!
NETKEY detected, testing for disabled ICMP accept_redirects [FAILED]

Please disable /proc/sys/net/ipv4/conf/*/accept_redirects
or NETKEY will accept bogus ICMP redirects!
Checking for RSA private key (/etc/ipsec.secrets) [DISABLED]

ipsec showhostkey: file `/etc/ipsec.secrets' does not exist
Checking that pluto is running [FAILED]

whack: Pluto is not running (no "/var/run/pluto/pluto.ctl")
Two or more interfaces found, checking IP forwarding [FAILED]

whack: Pluto is not running (no "/var/run/pluto/pluto.ctl")
Checking NAT and MASQUERADEing [OK]
Checking for 'ip' command [OK]
Checking for 'iptables' command [OK]

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OpenSUSE Network :: Monitor Which Programs Are Allowed To Access The Internet And Limit Traffic

Nov 8, 2010

I would like to be able to monitor which programs are allowed to access the internet, but a search for programs to do this has turned up nothing. Preferably, I would like a notification to come up every time an application uses the internet. Is there any (n00b friendly) software available to do that?

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