Karthik Sirasanagandla karthiks

🎯

Focusing

Entrepreneur

karthiks / case1.ps

Created September 14, 2021 13:02

Case 1: When you want to list files containing text "abc".

Get-ChildItem -Recurse | Select-String -Pattern 'abc' -List | Select Path

karthiks / mpm_prefork.conf

Created September 13, 2021 13:01

Config for php deployment that is using mpm_prefork_module for it to work with mod_evasive module

karthiks / evasive.conf

Created September 13, 2021 12:57

Minimal workable configuration for mod_evasive

	<IfModule mod_evasive20.c>
	DOSHashTableSize 3097
	DOSPageCount 1
	DOSSiteCount 3
	DOSPageInterval 1
	DOSSiteInterval 1
	DOSBlockingPeriod 10
	#DOSEmailNotify [email protected]
	#DOSSystemCommand "su - someuser -c '/sbin/... %s ...'"
	#DOSLogDir "/var/log/mod_evasive"

karthiks / enabled_apache_extensions.sh

Created September 13, 2021 12:46

verify whether the mod_evasive module is enabled

	apachectl -M \| grep evasive
	# Output:
	# [Mon Jan 27 13:55:35.707317 2020] [so:warn] [pid 29031] AH01574: module dav_module is already loaded, skipping
	# evasive20_module (shared)

karthiks / apache2.conf

Created September 13, 2021 12:19

/etc/apache2/apache2.conf file

	SetEnvIf Remote_Addr "::1" loopback
	SetEnvIf Remote_Addr "127\.0\.0\.1" loopback
	CustomLog /var/log/apache2/access.log combined env=!loopback

karthiks / conf

Created July 21, 2021 18:30

Ops Agent configuration to send the Apache2 webserver logs as well apart from the syslogs to Google Cloud Monitoring

	logging:
	receivers:
	mywebserver:
	type: files
	include_paths:
	- /var/log/apache*/access.log
	- /var/log/apache*/error.log
	- /var/www/logs/any-other-custom-logs-of-your-app-*.log
	service:
	pipelines:

karthiks / conf

Created July 21, 2021 18:02

Apache configuration file for the default website

	<VirtualHost *:80>
	ServerAdmin webmaster@localhost
	DocumentRoot /var/www/html
	ErrorLog ${APACHE_LOG_DIR}/error.log
	CustomLog ${APACHE_LOG_DIR}/access.log combined
	RewriteEngine on
	RewriteMap hosts-deny "txt:/etc/apache2/blacklist"
	RewriteCond "${hosts-deny:%{REMOTE_ADDR}\|NOT-FOUND}" "!=NOT-FOUND" [OR]
	RewriteCond "${hosts-deny:%{REMOTE_HOST}\|NOT-FOUND}" "!=NOT-FOUND"
	RewriteRule .* - [F]

karthiks / conf

Created July 21, 2021 17:58

Select part of Apache configuration file for the default website

	RewriteEngine on
	RewriteMap hosts-deny "txt:/etc/apache2/blacklist"
	RewriteCond "${hosts-deny:%{REMOTE_ADDR}\|NOT-FOUND}" "!=NOT-FOUND" [OR]
	RewriteCond "${hosts-deny:%{REMOTE_HOST}\|NOT-FOUND}" "!=NOT-FOUND"
	RewriteRule .* - [F]

karthiks / conf

Created July 21, 2021 17:53

Range of IP Addresses

	71.119.54.101 -
	52.123.54.102 -

karthiks / .sh

Created July 21, 2021 17:47

change ownership of file in ubuntu

chown www-data.www-data /etc/apache2/blacklist