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2
votes
1answer
55 views

Is this reverse proxy configuration possible

I will first try to describe the problem I have. Let's say I have two different http servers running on two different ports behind firewall on my local machine: SERVER1: http://localhost:8001 ...
31
votes
3answers
2k views

ISP broadcasting all IP-packets, so I can see traffic of other clients from ISP

Recently I wondered why my router shows a constant downstream of 5 MBit/s, while I am downloading almost no data. I discovered the "packet logging" function of my router, with which I was able to log ...
1
vote
2answers
65 views

KVM: All network traffic to one guest (firewall)

I am currently using a VMWare ESXi 5.5 server for my virtualisation. The network setup is like this: PFSense firewall is the center of it all and connected to: LAN Network (physical NIC 1 assigned by ...
1
vote
1answer
49 views

How can you investigate a daily traffic drain?

Running Amazon EC2 instance, t3.large tier. And observing interesting situation: Every night (UTC+1 midnight) the same NetworkOut jump occurs. What are my options to investigate it? The EC2 runs ...
1
vote
1answer
157 views

fortigate traffic packets not logged

Ciao, we use Fortigate device since years and now we need to check bandwidth usage per protocol and this is is not possible. We made this test: 1) all policy Logging Options - Log all Sessions 2) ...
0
votes
1answer
40 views

Redirect all VPS traffic to another VPS

is there any way to redirect all traffic from one VPS to another one? Example, domain is parked with IP 1.1.1.1 but website, smtp, game server, teamspeak server is hosted on 8.8.8.8.. (Ofcourse I ...
1
vote
0answers
35 views

how to do a traffic analysis gateway (logging, content storage, reviewing, querying) [closed]

I'd like to set up a network monitoring server that will be 1) my LAN's gateway to the internet, 2) a VPN server for my devices running outside (e.g. laptop on public wifi, smartphone over 3G/4G ...
1
vote
0answers
37 views

Varnish & iFrames - Each iFrame counts as a hit = poor performance?

I have a large Wordpress site (600-900 consistent users at all times) and about 6 months ago we setup Varnish. Our config uses 5GB cache and is stored in memory. When the site hits around 1500-2000 ...
0
votes
1answer
25 views

Redis: INFO doesn't report network/bandwidth metrics?

Is there a way to get network/bandwidth metrics from a given Redis process? Something I missed in the output of the INFO command? Some patch or compile time configuration option? Or would I need to ...
1
vote
3answers
234 views

Meaning of numbers on Watchguard Traffic Monitor

When looking at Traffic Monitor, you will see columns of numbers. However not all of them are apparent on what they are for. Unfortunately I don't have enough reputation to post images but I'll try ...
-1
votes
2answers
131 views

why the dns related traffic is so huge, is my server being hacked?

I have a vps, and have several site on it, usually these sites are rarely being visited except myself, thus i am shocked by one fact that is i visit the vps provider's portal and find i have used a ...
0
votes
1answer
71 views

Redirect traffic to another local machine requesting for a certain webpage

I need to redirect traffic, which is requesting for specified address(www.vlp.ee), to an another machine(10.251.36.5) located on my local network. The machine that handles the incoming traffic is ...
0
votes
1answer
66 views

High-traffic, low disk utilization AWS solution [duplicate]

I've got a high-traffic (imagine tracking server) node.js server that's going to run on AWS EC2. There is no disk operation involved, but a lot of DynamoDB requests (in same zone), ElastiCache usage ...
6
votes
3answers
294 views

What is the difference between these 2 iptables rules?

Trying to allow incoming ssh traffic on port 22. Default behavior is to DROP all incoming traffic. I came across 2 articles on how to allow traffic. However, they are different. ## open port ssh ...
-1
votes
2answers
258 views

Linux: How to find out which process curently creates the most network traffic?

From time to time connection to my server is very slow. This could be that someone is doing large uploads or downloads. Since I have a lot of software on my server I would like to find out, which ...
2
votes
3answers
308 views

How do I get the number of (currently) established TCP connections for a specific port?

How do I get the number of (currently) established TCP connections for a specific port? I have managed to get counters for traffic working by doing i.e for outgoing RTMP. iptables -N $CHAIN ...
0
votes
1answer
28 views

Who has traffic data in the Registrar-DNS-Host chain

When you register a domain, typically the registrar will set it up on their default DNS servers and point it to their default web server to serve their default parked page. Obviously the web server ...
0
votes
2answers
296 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
85 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 ...
2
votes
1answer
207 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
38 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
82 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
140 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
44 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
0answers
75 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
53 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
217 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
102 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
922 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
52 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
197 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
205 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
389 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
387 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
169 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
81 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
89 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
426 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
70 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
72 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
718 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
133 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 ...
0
votes
0answers
542 views

Apache 2 Settings for high traffic webserver

Hey all and thanks in advance, this is an easy one for alot of you on here. I have a 2 server setup a web server and database backend. Well I am having issues optimizing my apache settings and don't ...
4
votes
3answers
448 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 ...
0
votes
0answers
36 views

When DSL stops working, some local traffic increases tremendously, why is that?

I have a little Linux server I use to server a few websites among other small things. At times, the connection with the provider goes down and thus the whole thing stops working. These days, at that ...
0
votes
1answer
246 views

traffic priority using iptables

I have set up 4 VLANs with ids 100,200,300,400 on raw interface eth0.Now i wanted to prioritise the traffic that will be flowing on these interfaces.I think so,i can use iptables to add QoS rules to ...
-2
votes
1answer
200 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. ...
11
votes
4answers
292 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 ...
0
votes
1answer
632 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 ...