I would like to install the Mod_evasive for Apache 2.0 on RHEL 4 Server(Cpanel Installed). I downloaded the Mod_evasive source and extracted and used the following command.
# cd mod_evasive
# /usr/sbin/apxs -cia mod_evasive20.c
I am getting folowing message.
-bash: /usr/sbin/apxs: No such file or directory
# whereis apxs
apxs:
I have two vps and i want to add one to the cluster system and make it a DNS only server.
does anyone have any tutorials on how to do this? i am a newbie to this sort of thing so need a step by step process.
The server gets around 25k unique visitors per day, but one website in particular allows hotlinking and uses a lot of bandwidth. Last time I checked...according to whm apache status page, I was getting 180 requests per second. Not sure what time it was though. So it might be higher at a different time of the day.
Recently got mod_evasive installed, but I didn't want it to block out legitimate users. Currently it's set to this...
<IfModule mod_evasive20.c>
DOSHashTableSize 3097
DOSPageCount 5
DOSSiteCount 100
DOSPageInterval 2
DOSSiteInterval 2
DOSBlockingPeriod 10
DOSBlockingPeriod 600
</IfModule>
what a better configuration would be? When I run the log I already see it block out a bunch of IP's. I don't want to lose any visitors to this program, but I do get ddos a lot.
how to install mod_security, suhosin, Mod_Evasive on server plesk (apache2, php5)?
win I loacate apxs I have empty results
I know this can be the most foolishly question on WHT but I'm looking for mod_evasive's download link, I tried googling and searching all forums but all links was dead
anybody can give me a link to get mod_evasive ? Ofcourse If you have a better idea than using of mod_evasive I'll be glad to hear
We installed mod_evasive and ever since we are getting files like: dos-xxx.xxx.xxx.xxx, where xxx.xxx.xxx.xxx is an IP in our /tmp directory. The contents of the file is usually a 4 or 5 digit number and is owned by apache. Can anyone help me understand what this file is? Is it a product of mod_evasive? Can the files be deleted?
View 14 Replies View RelatedI have a file named dos-1.2.13.4 (i changed the IP address in purpose) inside the log and inside the file there is a 4 digit number that is constantly changing. more
[root@myserver]# more dos-1.2.13.4
8726
What is 8726?
We are having problem with installing mod_evasive on our server. We tried installing it on our Virtual Machine that runs Fedora 7 (on our server, we have Fedora core 5), and on Virtual Machine it is fine, we can compile it and put it in our Apache2 conf file.
However, when we try
[root@ mod_evasive]# /usr/local/psa/admin/bin/apxs -i -a -c mod_evasive20.c
on the server, we get a
[root@ mod_evasive]# /usr/local/psa/admin/bin/apxs -i -a -c mod_evasive20.c
gcc -DHARD_SERVER_LIMIT=512 -DDEFAULT_PATH="/usr/local/psa/admin/bin:/bin:/usr/bin" -DLINUX=22 -DTARGET="httpsd" -DHAVE_SET_DUMPABLE -DNO_DBM_REWRITEMAP -DMOD_SSL=208122 -DEAPI -O -pipe -I/usr/include -O3 -fexpensive-optimizations -fstrength-reduce -pipe -DPLESK_Linux -I/home/builder/buildbot/psa-8.2.1-bfc7/build/plesk/lib/dist/include/libxml2 -W -Wall -DPLESK_Linux -I/home/builder/buildbot/psa-8.2.1-bfc7/build/plesk/plesk-utils/include -DBSG_CR -DBSG_MSG -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DHAS_RPM -DUSE_SLEEP_ON_IDLE -Wno-unused-parameter -fpic -DSHARED_MODULE -I/usr/local/psa/admin/include -c mod_evasive20.c ....
I have 2 questions here.
1. I have installed mod_evasive version 1.10.1 on a Cent OS 4.4 server.
I'm using the test.pl script that comes with mod_evasive to test the configuration and when running the script from the same server mod_Evasive is installed. The mod_evasive is able to detect the intrusion and block the IP of the server.
If I use the same test.pl script from an external server the requests come in and are viewable in the access log but mod_evasive doesnt block the IP of the external server. Probably is not blocing the ip of the external server because of latency.
Is there a way to modify the test.pl script to make it more agressive and get results when testing from an external server?
Here I'm pasting the code of the test.pl script:
Code:
#!/usr/bin/perl
# test.pl: small script to test mod_dosevasive's effectiveness
use IO::Socket;
use strict;
for(0..100) {
my($response);
my($SOCKET) = new IO::Socket::INET( Proto => "tcp",
PeerAddr=> "test.domain.tld:80");
if (! defined $SOCKET) { die $!; }
print $SOCKET "GET /?$_ HTTP/1.0
";
$response = <$SOCKET>;
print $response;
close($SOCKET);
}
2. Also, I have sendmail installed and on the mod_evasive config I have email address specified on DOSEmailNotify. When testing from the internal server with the test.pl script the server is able to block the ip, put in the hash table but it never sends an email to my email address.
mod_evasive settings?
I cant find out the setting which would ban all bad IPs and will nto ban normal ones.
Does anyone know any good mod_evasive rules that pick up DoS, but not many false positives? Just looking to see what works for everyone out there, been having trouble.
Or if there is better apache module to combat DoS.
i want to install mod on my centos Cpanel server. so i try:
cd /usr/local/src
wget mod_evasive_1.10.1.tar.gz
tar -zxf mod_evasive_1.10.1.tar.gz
cd mod_evasive
/usr/sbin/apxs -cia mod_evasive20.c
but when i run /usr/sbin/apxs -cia mod_evasive20.c there is some error for me :
[root@ mod_evasive]#/usr/sbin/apxs -cia mod_evasive20.c
-bash: /usr/sbin/apxs: No such file or directory
and is it good to install or not?[url]
View 5 Replies View RelatedI have 2 questions here.
1. I have installed mod_evasive version 1.10.1 on a Cent OS 4.4 server.
I'm using the test.pl script that comes with mod_evasive to test the configuration and when running the script from the same server mod_Evasive is installed. The mod_evasive is able to detect the intrusion and block the IP of the server.
If I use the same test.pl script from an external server the requests come in and are viewable in the access log but mod_evasive doesnt block the IP of the external server.
Probably is not blocing the ip of the external server because of latency.
Is there a way to modify the test.pl script to make it more agressive and get results when testing from an external server?
Here I'm pasting the code of the test.pl script:
Quote:
#!/usr/bin/perl
# test.pl: small script to test mod_dosevasive's effectiveness
use IO:ocket;
use strict;
for(0..100) {
my($response);
my($SOCKET) = new IO:ocket::INET( Proto => "tcp",
PeerAddr=> "test.domain.tld:80");
if (! defined $SOCKET) { die $!; }
print $SOCKET "GET /?$_ HTTP/1.0
";
$response = <$SOCKET>;
print $response;
close($SOCKET);
}
2. Also, I have sendmail installed and on the mod_evasive config I have email address specified on DOSEmailNotify. When testing from the internal server with the test.pl script the server is able to block the ip, put in the hash table but it never sends an email to my email address.
I got mod_evasive installed and its working fine. Its detecting the IPs, blocking the IPs and sending me the emails.
The emails I'm getting only have the sender name "Apache" and the content shows the IP address is blocking.
How can I enhance the email report to display the following:
1) get a proper Subject header in the email
2) change the From header to include the hostname - i.e.
apache@web.domain.tld
3) have the program do a reverse lookup on the ip, and include that in the body.
Do I need to include a script using the DOSSystemCommand to do this?
I have 2 questions here.
1. I have installed mod_evasive version 1.10.1 on a Cent OS 4.4 server.
I'm using the test.pl script that comes with mod_evasive to test the configuration and when running the script from the same server mod_Evasive is installed. The mod_evasive is able to detect the intrusion and block the IP of the server.
If I use the same test.pl script from an external server the requests come in and are viewable in the access log but mod_evasive doesnt block the IP of the external server. Probably is not blocing the ip of the external server because of latency.
Is there a way to modify the test.pl script to make it more agressive and get results when testing from an external server?
Here I'm pasting the code of the test.pl script:
Quote:
#!/usr/bin/perl
# test.pl: small script to test mod_dosevasive's effectiveness
use IO:Socket;
use strict;
for(0..100) {
my($response);
my($SOCKET) = new IO:Socket::INET( Proto => "tcp",
PeerAddr=> "test.domain.tld:80");
if (! defined $SOCKET) { die $!; }
print $SOCKET "GET /?$_ HTTP/1.0
";
$response = <$SOCKET>;
print $response;
close($SOCKET);
}
2. Also, I have sendmail installed and on the mod_evasive config I have email address specified on DOSEmailNotify. When testing from the internal server with the test.pl script the server is able to block the ip, put in the hash table but it never sends an email to my email address.
Is there a way to block ips with mod_evasive by adding the ips to the mod_evasive configuration file?
View 3 Replies View RelatedSome times I read in logs
server mod_evasive[24203]: Blacklisting address 84.255.151.xxx: possible attack.
Where can I find this black list and all IP listed
I've tried installing Nagios on my cPanel server and cannot get it to work for the life of me...can anyone point me to a decent "layman's terms" guide for installing this on a cPanel server...Preferably with lots of pretty pictures
View 2 Replies View RelatedInstalling mod_evasive after serveral attacks on our server.
but when restarting httpd I get this error,
httpd: Syntax error on line 36 of /usr/local/apache/conf/httpd.conf: API module structure 'evasive20_module' in file /usr/lib/httpd/modules/mod_evasive20.so is garbled - expected signature 41503232 but saw 41503230 - perhaps this is not an Apache module DSO, or was compiled for a different Apache version?
Running apache 2.2.8
We tried to use one software for offline browsing to download our site and test it if it will fail or not. We used 500 threads at once. Program was able to request 56 pages per second. Of course server (site) failed because there were no more available mysql connections. So site went down. Mod_evasive didn't block that.
Here is the config:
<IfModule mod_evasive20.c>
DOSHashTableSize 3097
DOSPageCount 2
DOSSiteCount 80
DOSPageInterval 1
DOSSiteInterval 1
DOSBlockingPeriod 30
DOSLogDir "/var/log/httpd"
</IfModule>
Here is the copy of text I found on one site about mod_evasive:
Mod_evasive does work relatively well for small to medium sized brute force or HTTP level DoS attacks. There is, however, an important limitation that mod_evasive has that you should be aware of. The mod_evasive module is not as good as it could be because it does not use shared memory in Apache to keep information about previous requests persistent. Instead, the information is kept with each child process or thread. Other Apache children that are then spawned know nothing about abuse against one of them. When a child serves the maximum number of requests and dies, the DoS information goes with it. So, what does this mean? This means that if an attacker sends their HTTP DoS requests and they do not use HTTP Keep-Alives, then Apache will spawn a new child process for every request and it will never trigger the mod_evasive thresholds. This is not good…
Is there any solution for such type of attack with Keep Alive disabled?
mod_evasive bans some of the legit users (galleries , typo3 etc.) with following settings:
<IfModule mod_dosevasive20.c>
DOSHashTableSize 3097
DOSPageCount 10
DOSSiteCount 150
DOSPageInterval 1
DOSSiteInterval 3
DOSBlockingPeriod 10
</IfModule>
Somebody have an idea for some less restrictive but still usefull rules?
i am trying to install a SSL certificate for my hostname so i dont get the annoying warning message "this site should not be trusted" I am using cPanel 11.25 and positiveSSL
View 6 Replies View RelatedI just started using lighttpd for download purpose.
I limited the number of connection per ip to 5 using mod_evasive .
When a user is downloading with a download manager the number of connection is reached to its maximum. I was wondering if there is a way to allow that same user to be able have 1 additional connection when an index.php is requested . That is, if the user is trying to view an index.php file it would ignore the rule evasive.max-conns-per-ip = 5 .
Each user have their download dir located on [url] in that same dir contains an index.php which contains login tab and integrated directory listing .
Anybody have successfully installed GPAC in Centos system?
View 0 Replies View Relatedis it possible to install FreePBX ontop of my Cpanel Installation on my server.
If so, how would i do it? Im currently running Centos 4.7.
