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Questions tagged [blocking]

121 questions
3
votes
6 answers

How can I block access to my website from certain countries using the LAMP stack?

I have a website that I do not want to be viewed by entire countries. The website is running on a LAMP server. How can I achieve this?
haim evgi
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1 answer

Linux kernel crash - any ideas?

Been getting these runaway conditions on a lightly loaded vps (debian squeeze kernel 2.6.38-bpo.2-amd64, 2GB, SSD) - top load is nothing , then jumps to 30.0 & everything grinds to a halt. I'm guessing the Xen Hypervisor kicks in and limits things…
jimg
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5 answers

Block ssh tunneling navigation in my LAN

I would like to stop people bypassing Opendns and squid proxy blocks to get on facebook using ssh tunnel to their pc home. I know I can fix this talking to boss but I'd also like to understand better how is technically possible.
Pitto
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Are there internet users connecting with HTTP/1.0?

Are there internet users connecting with HTTP/1.0? Such as over a proxy. Because I'm going to block HTTP/1.0 since most of the bots are using HTTP/1.0.
ilhan
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1 answer

What firewall settings need to be used to block Microsoft Telemetry (spyware)?

I'm seeing a lot of products, such as SQL Server, coming out with opt-out spyware. This is marketed as "Telemtry" or "Customer Experience Improvement Program (CEIP)". Can I disable the spyware in SQL Server 2017? Obviously, this can currently be…
Evan Carroll
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1 answer

Apache access.log flood with GET ...HTTP/1.1" requests

I have a server with Ubuntu 14.04, laravel 5.2 framework. On the last 24 hours somebody continously send flood requests from different ip adresses as shown below (log/apache2/access.log): 198.46.157.112 - - [18/Oct/2016:17:44:04 +0100] "GET…
Petres Arpad
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Block Bad Bots in Nginx for Multiple Sites

I need to block a bunch of robots from crawling a few hundred sites hosted on a Nginx web server running on a Ubuntu 16.04 machine. I've found a fairly simple example here (important part of the code is below) but it seems that this functionality…
Sledge Hammer
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1 answer

Administrator is being blocked by server - error 406?

Few days ago I put online new portal that comes with cms I made myself. Problem that occurred is following: Administrator logs to cms, publishes few news and then he can't access portal at all (whole domain is not accessible to him). Then he tried…
ilija veselica
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determine if threads on a cpu are blocked? What are the causes of thread blocks?

The load-average reported by uptime command also displayed in top provides the the average run-queue length over time (1, 5 and 15 minutes) The run-queue length is the sum of the number of threads (tasks) that are currently running plus the number…
Manchego
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2 answers

Will dropping AUTO_INCREMENT rebuild table in MySQL?

I've got table with following schema: CREATE TABLE `tblsomething` ( `something_id` int(11) NOT NULL AUTO_INCREMENT, … PRIMARY KEY (`something_id`) ) ENGINE=InnoDB AUTO_INCREMENT=144620955 I need to drop the auto increment. So I'm thinking to…
vartec
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1 answer

Block traffic to certain servers

In my organization, I'd like to make sure all servers are only accessible from the inside. The only exceptions are the mail and webservers. What's the best way to do this? My own suggestion was blocking ALL incoming traffic via 'iptables' except…
Sam Hendrickx
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1 answer

How can a block IP addresses using Windows Server 2008 firewall?

I have started to get various login attempts from different IP addresses. How can I block these IP addresses in the Windows Server 2008 Firewall?
Magnus
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2 answers

Can I restrict access to an apache website to a client whose IP address is on an ISP who allocates IP addresses via DHCP?

I have a website which I want to use for administrative purposes. I need to be sure that only people from certain machines can log on. the problem is they are on ISP networks. Will I truely get the correct IP address to use from an ip/ifconfig…
Excalibur2000
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Rejecting traffic where ACCEPT header is empty on favicon.ico requests

As part of filtering out potential harmful traffic, I currently reject traffic where $_SERVER["HTTP_ACCEPT"] is empty. I notice from my logs that a fair number of requests have been rejected due to the accept header being empty and some of them come…
mseifert
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3 answers

Sonicwall App Control Advanced

I have a custom application that accesses a remote range of IP addresses, lets say for example 206.0.0.0 - 206.255.255.255, this is UDP based traffic. The issue is, Sonicwall NSA has been configured to block all proxy-based access and is detecting…
John
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