The tag has no wiki summary.

learn more… | top users | synonyms

-1
votes
1answer
18 views

Monitor traffic for each port [closed]

Is there an application that creates HTML/image (outgoing) traffic reports sorted on port for CentOS 6.x/5.x? On this way we can monitor traffic for our customers, because they are limited to just ...
0
votes
6answers
84 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
39 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 ...
-1
votes
0answers
28 views

How to do QoS for each individual based on IP [closed]

I'm wondering if there's a way/software I can enable bandwidth control on both inbound/outbound LAN traffic between each connected host and the router? Currently I have a CentOS box running as a ...
0
votes
6answers
2k views

How can i monitor internet traffic in my LAN?

I have a centOS box set up as a gateway with IPTables (among many things such as proxy cache using Squid). My LAN consists of ~30 machines, all connect to the internet through the gateway's eth0 ...
0
votes
0answers
18 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
26 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 ...
5
votes
4answers
4k views

Limit SSH traffic?

I would like to be able to limit SSH bandwidth on my server. I.e. each sshd process should be limited to 200Kb/s or something like that. scp has this functionality, but ssh, being more designed for ...
0
votes
2answers
103 views

High Inbound network traffic

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 ...
11
votes
4answers
246 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
71 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
62 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 ...
3
votes
3answers
350 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 ...
1
vote
4answers
259 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
47 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
2answers
552 views

How do I move an Amazon micro instance to a small instance?

I want to move my instance to a micro instance to a small instance but when I try to launch a new AMI based on my Micro instance AMI it only gives me the option for 64 bit instances. My initial ami ...
0
votes
3answers
1k views

Want to route all internet traffic through VPN

I want to route all internet traffic through a VPN client, so if the VPN somehow lose connection, nobody can find my real IP. So if VPS goes down, so my internet access. I'm using OpenVPN with this ...
0
votes
1answer
150 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
0answers
39 views

Local Area Connection Traffic Redirected [closed]

Normally the traffic as shown by the Local Area Connection Status is higher for the received than the sent packages if the HW modem is plugged in directly to the PC without the TP router. However, ...
2
votes
1answer
114 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 ...
10
votes
4answers
34k views

How to filter http traffic in Wireshark?

I suspect my server has a huge load of http requests from its clients. I want to measure the volume of http traffic. How can I do it with Wireshark? Or probably there is an alternative solution using ...
0
votes
0answers
66 views

rsync generates very much traffic [closed]

I use rsync for backing up one of my servers with 4GB of files. When I now try to transfer these files the traffic for the files isn't the estimated 4GB. It is a lot higher. It's about 60GB. I also ...
9
votes
3answers
9k views

how i can identify which process is making UDP traffic on linux?

my machine is continously making udp dns traffic request. what i need to know is the PID of the process generating this traffic. The normal way in TCP connection is to use netstat/lsof and get the ...
0
votes
1answer
96 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 ...
0
votes
2answers
246 views

How to route outbound traffic to specific domain “XYZ.org” via a specific NIC or public/static IP? [closed]

Within the next week or so, I'll be setting up an AT&T U-verse modem with 5 usable static public IP addresses. I plan to register a domain name pointing at 1 of the 5 static IPs, and run a website ...
2
votes
3answers
136 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 ...
6
votes
2answers
336 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
206 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 ...
0
votes
1answer
72 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
77 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
258 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
61 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
69 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
324 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
348 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 ...
0
votes
0answers
35 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
175 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
162 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. ...
0
votes
2answers
344 views

Counting traffic to destination MAC address using ebtables/iptables

I would like to be able to count the number of bytes going to a given MAC address using iptables or ebtables or some other linux utility. I have tried looking at the byte counts in ebtables but they ...
3
votes
2answers
161 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 ...
0
votes
1answer
342 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
3answers
14k views

Overwhelming traffic from llnw.com and msecn.net through squid

On our network at work we have a squid proxy between us and the internet. It's main function is to cache windows updates. However, at times, there are overwhelming amounts of traffic coming in on ...
0
votes
1answer
261 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
71 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 ...
1
vote
1answer
157 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 ...
0
votes
1answer
175 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
149 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 ...
0
votes
1answer
432 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 ...
4
votes
2answers
577 views

Monitor bandwidth per-process

This has been driving me nuts but my server has been using a highly excessive amount of bandwidth for the last two months, and I can't figure out how/why/where. This month, for example, it's used 210 ...
6
votes
3answers
1k views

How to cap bandwidth usage on AWS EC2?

I'm planning to use AWS EC2 for my web application and I need control over the bandwidth usage (don't want the instances to be compromised and ramping up bandwidth cost crazily). There are many ...

1 2 3 4