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0
votes
2answers
762 views

Is there any open source software for QoS (traffic control)? [closed]

We are doing QoS (traffic control) for our server application. This server provides file download service for users and we want to give different users different priority and bandwith. Suppose the ...
-2
votes
1answer
96 views

Unusal internet traffic drop off [closed]

I'm after advice on how to approach a problem I'm having on my e-commerce site. Occasionally, the site suffers a levelling off of users on the website, compared to our historic traffic this is ...
4
votes
1answer
652 views

Mirroring Traffic with Nginx

I need to duplicate/mirror the traffic comming to my server/resource. I mean, I have server A and B and N (nginx) as webserver. All the traffic comming to N/resource --> redirect to both A and B Is ...
-1
votes
1answer
39 views

What can cause drastic traffic jump on server?

In the last couple of days, between 3AM and 4AM my server traffic jumps tenfold, from 20MB to 200MB. I've checked the access log, and while there is significant googlebot activity, the difference ...
1
vote
1answer
162 views

Will traffic control software cause tcp packets to be dropped

I am testing our client-server applications using NetLimiter which is a traffic control software. I found that, when client is receiving files from server and I use NetLimiter to set the download rate ...
0
votes
6answers
266 views

how to block all traffic to my website and only allow me to visit the site [closed]

my website is new and there is tons of things i want to take care of before i open the website to public but i'm afraid of that maybe someone will visit the website using google like they searched ...
0
votes
1answer
58 views

Traffic rerouting internally on LAN

I have a LAN with 10 PC's and 2 routers. One of the routers creates a secure connection to a different location. We do not rights to administer this router.The other router is my internet gateway. I ...
0
votes
1answer
108 views

Traffic shaping linux upload issue

Im currently working on a traffic shaping in linux. We have a client connected to a server running nat and dhcp. What we want to do is limit both the upload and download speed of the client/clients. ...
1
vote
0answers
84 views

High outgoing traffic on VDS Ubuntu 10.04.4

I have a VDS on Ubuntu 10.04.4. It works as HTTP server (Apache, Nginx, MySQL, PHP, Postfix), no FTP, root log in disabled. Suddenly, my VDS was blocked, because exceeded traffic quota (300 GB a ...
0
votes
2answers
465 views

High Inbound network traffic [duplicate]

I have a CentOS 6.4 64Bit Dedicated server used for hosting several websites. I recently checked the traffic graph for my server and discovered that the inbound traffic is very high (about 200-500 ...
0
votes
1answer
141 views

Possible causes of high download activity on network [closed]

We had an issue where we noticed approximately 170GB of data downloaded as http traffic over a one week period on our network. After locking down many services and running a hub as an in between ...
0
votes
0answers
75 views

limit bandwidth for each IP

I have a basic question. I use Frontpage to manage my website and I assume it uses HTML coding. I recently experienced a huge traffic coming to my website from few (say less than 10) IPs and shut ...
1
vote
4answers
3k views

How can I calculate the 95-percentile bandwidth usage of a network device?

My provider is billing my bandwidth using the 95-percentile method. I know what it is in principle (take measurements, throw the top 5% away and use the remaining highest as result). The question ...
0
votes
1answer
62 views

Firewall traffic routing when visiting a specific website

I've got an odd question/request, here's what it is. We have a block of 5 public static IP addresses and there's a website that they are requesting that we try and set up so that when we visit it ...
0
votes
1answer
452 views

Best way to log internet traffic for office network via remote IP

We have a network of about 40 machines running either Win XP or 7 in our office via LAN switches into 1 x Netgear Router (WNDR3700). We have noticed recently that our local network has been added to ...
0
votes
1answer
297 views

How to know why server traffic is used and what is using it? (windows os)

I have a VPS on which I have Windows Server 2008 R2 installed. My monthly traffic is near 100 Gigabytes per month, and I don't have heavy sites on it (no download center, no movies, just text and ...
6
votes
2answers
433 views

Detecting Slashdot effect in nginx

Is there a way I can make Nginx to notify me if hits from a referrer goes beyond a threshold? e.g If my website is featured at Slashdot and all of sudden I have 2K hits coming in an hour I want to be ...
-4
votes
1answer
571 views

Sudden increase in outgoing traffic

My server is witnessing a sudden increase in traffic. Consistently there is a 200mb outgoing traffic every hour. This is not my web traffic. I am running centos OS and completely new to server ...
2
votes
3answers
204 views

iptables intercept local traffic

I hope someone can help me out with a somewhat simple task. I'm trying to redirect a client in my router through my desktop PC, so I can dump the traffic and analyze it (its potential source of ...
0
votes
1answer
94 views

Application to monitor traffic spikes on cloud server?

I was wondering if anybody knew of any software (preferably free if possible) that monitors server traffic for spikes? Something that, say, might send out notifications via email or anything for that ...
1
vote
1answer
105 views

Redirect traffic per domain on cisco 2901 [closed]

I have 2 internet interfaces on my cisco, and i want to redirect the traffic depending of the domain. for example. Interface 1 - youtube, facebook, browsing, etc. Interface 2 - Cloud services, mail, ...
2
votes
2answers
920 views

How can i get the outbound traffic per ip on a 2901 Cisco router?

What i need is to identify the internal source address using X amount of outbound traffic, and where the traffic is going (a domain or ip) Currently, i have configured an "ip accounting" on my ...
0
votes
4answers
85 views

What would be a quick fix in case of server downtime due to sudden high traffic?

Let's consider a scenario like below: A small web blog build based on LAMP stack and deployed on a shared hosting. Suddenly it becomes popular in one day and it gets million hits per day. Since the ...
1
vote
3answers
76 views

Traffic statistic for the executed programs

Some user launches a set of programs. I need to get statistic about traffic for the programs executed by these user. But not summary for this user, but for each program executed by it separately. ...
4
votes
3answers
1k views

will heavy network traffic affect other connections on HP ProCurve V1810-48G?

I have a HP ProCurve V1810-48G switch with a few servers running Citrix XenServer connected to it (everything in one rack). The switch is almost in its default configuration (no VLAN, no port ...
2
votes
1answer
164 views

Traffic statistics with iptables for passive FTP?

Basic traffic statistics with iptables are easy. One creates a rule with no target, e.g. iptables -I INPUT -p tcp --dport 80 Then, e.g. after uploading some data via http, one can read the counters ...
4
votes
3answers
621 views

Thousands of visits a day from untraceable traffic to website - Serious issue

At the end of January we noticed a spike in traffic to what JetPack stats says was home/archive page and what Google was classifying as going to /gaming/ which is an archive list in WordPress. This ...
-2
votes
1answer
291 views

block outbound traffic on hosting server, get alert on attempt to outbound attempt

So i want to block all unwanted out-bound traffic , specially traffic from unwarranted allowed ports both TCP and UDP and also get a email alert if any script or app tries to contact outbound port. ...
12
votes
4answers
394 views

How to play traffic against a shadow network?

Sorry if this is a newb question... I've heard stories of Netflix and Twitter being able to duplicate web traffic amongst two separate infrastructures: one is the authoritative/trusted one that goes ...
2
votes
1answer
1k views

Transmit rate decreases when using both Intel NIC 10G ports

I'm using the Intel 82599EB 10G NIC on a server running RHEL6. I ran a program where packets are generated at high rates. The NIC was previously installed on another PC where I was able to generate ...
0
votes
1answer
519 views

linode server bandwidth

I am ready to deploy my startup on the web so i would like to start small and get a VPS from linode as i see many good reviews and see how its going... the thing is that on their website they state: ...
0
votes
2answers
81 views

Large photo sharing service. Where to start [closed]

I'm sorry if this post is too vague but I don't even know what topics to start looking at. I need a server that has the ability to share large amounts of data with potentially very high traffic, and ...
3
votes
2answers
260 views

Is it just me or is my node down?

I find the www.doj.me very useful. I am looking for something like that but specifically for BGP Nodes. I want to write a script that tells the users if our Internet backbone is down, if if yes which ...
1
vote
1answer
422 views

Traffic from inside my network going to non-existent IP address inside my network, captured by router logs

I have a setup with RouterB sitting behind RouterA. RouterA sets RouterB's IP address to a public static IP 108.x.y.z, which it has been given in a block of addresses by the ISP. In RouterA's logs, I ...
1
vote
1answer
279 views

iptraf shows excessively high traffic, switch says almost no traffic

I have a weird problem with traffic here. My server is connected via 100mbit to a netgear switch. Now sometimes when I look at the traffic on the server using iptraf it reports in excess of ...
2
votes
2answers
292 views

What's the most simple proxy that can log traffic to a file?

we found a new service that could be quite useful to monitor what is happening on our servers and in our applications. Problem is that it is SaaS, so we can't just install the tool on our servers, but ...
1
vote
1answer
1k views

How can i route Postfix through a socks proxy?

I have a mail server that uses postfix to relay all the outbound mail through Gmail's smtp servers. Now I have another internet provider and this one is through a SOCKS proxy connection. How can I ...
0
votes
2answers
238 views

database for storing network traffic

I am developing a software to monitor network traffic and I need a database server that would be very fast in storing and querying packet header fields. I know there is a .pcap file format, but it is ...
2
votes
1answer
176 views

How to redirect traffic with Apache and Dlink 524T ?

I would like to redirect all LAN http traffic to my Apache server (which is located temporarily on my laptop ). The basic idea is that every user who connects to the network and tries to connect to a ...
2
votes
1answer
333 views

One terabyte of video served per hour - network limits?

Suppose in a peak hour there are 100,000 users that want to watch a video and that on average they consume 10 megabytes per video view. Might be more, might be less. For simplicity, let's say 1 ...
-1
votes
2answers
233 views

20 000 000 hits; simple PHP/MySQL server using NGINX [closed]

I am hosting a big campaign that is going to launch tomorrow. The expected avg. number of visits on the first day is +200 000 users. Assuming everyone is going to visit 5 pages on avg., this makes 1 ...
2
votes
2answers
918 views

tc prio qdisc for priorization of mysql traffic

I am struggling with tc prio qdisc for a few hours now. I have read the lartc Documentation, Examples and HowTos, but this whole thing is kinda new for me and somewhat confusing :) So this is my ...
1
vote
5answers
1k views

Fancy graphing for network traffic

I'm currently looking for a solution that would allow me to easily graph traffic on a network. Basically what I'm looking for is anything that could actively provide graphs/charts/colors etc. for our ...
2
votes
0answers
96 views

High traffic windows server configuration [closed]

I'm running a large website with 400.000+ visitors a day and currently setting up a new server environment (one web, and one db server). I would love to hear how Jeff and Joel has setup their Web and ...
0
votes
1answer
113 views

Large amount of traffic incoming. Preparation tips

Looking for any tips on improving performance on the server level as my client will be getting some heavy traffic in the next few days. Using a 1and1 cloud vps and increased the memory pretty high on ...
0
votes
2answers
1k views

Why is my TP-LINK wireless access point continuously generating traffic to a strange ip (ssdp?)

I just plugged in a couple tp-link wirless access points and found that while they work fine, I am now seeing traffic going from their internal ip's to a 239.255.255.250 which is nothing on my ...
0
votes
2answers
63 views

I need help w/iptable rules

Chain INPUT (policy ACCEPT) target prot opt source destination ACCEPT all -- anywhere anywhere The above 'ACCEPT'-line is quiet confusing to me. ...
1
vote
1answer
92 views

Can a server generate traffic without load?

On the server I'm building my app, I have access to the cli. The administrator says that the server I'm working on is used to generate a lot of traffic, in order to flood another server. Lately, I ...
0
votes
2answers
685 views

fedora default traffic monitor tool

On a fedora server i have access using a ssh connection. As a regular user, how can I see what traffic is involved into the server? I don't have root rights, and I'll like to learn from the default ...
0
votes
1answer
83 views

why there is more than 60Gb incoming traffics on my eth0? [closed]

when i run nload -m , i find there is more than 60Gb incoming traffics on my eth0 , but no outgoing. i want to know is it a bug of nload or other possible reason ? thanks!