mirror of
				https://github.com/mail-in-a-box/mailinabox.git
				synced 2025-11-03 19:30:54 +00:00 
			
		
		
		
	added some nginx exploit protections from https://www.howtoforge.com/nginx-how-to-block-exploits-sql-injections-file-injections-spam-user-agents-etc
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								conf/nginx.conf
									
									
									
									
									
								
							
							
						
						
									
										234
									
								
								conf/nginx.conf
									
									
									
									
									
								
							@ -27,6 +27,121 @@ server {
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		# tool knows to store challenge response files.
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		alias $STORAGE_ROOT/ssl/lets_encrypt/acme_challenges/;
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	}
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	## Block SQL injections
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    set $block_sql_injections 0;
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    if ($query_string ~ "union.*select.*\(") {
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        set $block_sql_injections 1;
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    }
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    if ($query_string ~ "union.*all.*select.*") {
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        set $block_sql_injections 1;
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    }
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    if ($query_string ~ "concat.*\(") {
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        set $block_sql_injections 1;
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    }
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    if ($block_sql_injections = 1) {
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        return 403;
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    }
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    ## Block file injections
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    set $block_file_injections 0;
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    if ($query_string ~ "[a-zA-Z0-9_]=http://") {
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        set $block_file_injections 1;
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    }
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    if ($query_string ~ "[a-zA-Z0-9_]=(\.\.//?)+") {
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        set $block_file_injections 1;
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    }
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    if ($query_string ~ "[a-zA-Z0-9_]=/([a-z0-9_.]//?)+") {
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        set $block_file_injections 1;
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    }
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    if ($block_file_injections = 1) {
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        return 403;
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    }
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    ## Block common exploits
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    set $block_common_exploits 0;
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    if ($query_string ~ "(<|%3C).*script.*(>|%3E)") {
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        set $block_common_exploits 1;
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    }
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    if ($query_string ~ "GLOBALS(=|\[|\%[0-9A-Z]{0,2})") {
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        set $block_common_exploits 1;
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    }
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    if ($query_string ~ "_REQUEST(=|\[|\%[0-9A-Z]{0,2})") {
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        set $block_common_exploits 1;
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    }
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    if ($query_string ~ "proc/self/environ") {
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        set $block_common_exploits 1;
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    }
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    if ($query_string ~ "mosConfig_[a-zA-Z_]{1,21}(=|\%3D)") {
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        set $block_common_exploits 1;
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    }
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    if ($query_string ~ "base64_(en|de)code\(.*\)") {
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        set $block_common_exploits 1;
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    }
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    if ($block_common_exploits = 1) {
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        return 403;
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    }
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    ## Block spam
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    set $block_spam 0;
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    if ($query_string ~ "\b(ultram|unicauca|valium|viagra|vicodin|xanax|ypxaieo)\b") {
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        set $block_spam 1;
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    }
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    if ($query_string ~ "\b(erections|hoodia|huronriveracres|impotence|levitra|libido)\b") {
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        set $block_spam 1;
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    }
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    if ($query_string ~ "\b(ambien|blue\spill|cialis|cocaine|ejaculation|erectile)\b") {
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        set $block_spam 1;
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    }
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    if ($query_string ~ "\b(lipitor|phentermin|pro[sz]ac|sandyauer|tramadol|troyhamby)\b") {
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        set $block_spam 1;
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    }
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    if ($block_spam = 1) {
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        return 403;
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    }
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    ## Block user agents
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    set $block_user_agents 0;
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    # Don't disable wget if you need it to run cron jobs!
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    #if ($http_user_agent ~ "Wget") {
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    #    set $block_user_agents 1;
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    #}
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    # Disable Akeeba Remote Control 2.5 and earlier
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    if ($http_user_agent ~ "Indy Library") {
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        set $block_user_agents 1;
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    }
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    # Common bandwidth hoggers and hacking tools.
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    if ($http_user_agent ~ "libwww-perl") {
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        set $block_user_agents 1;
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    }
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    if ($http_user_agent ~ "GetRight") {
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        set $block_user_agents 1;
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    }
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    if ($http_user_agent ~ "GetWeb!") {
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        set $block_user_agents 1;
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    }
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    if ($http_user_agent ~ "Go!Zilla") {
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        set $block_user_agents 1;
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    }
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    if ($http_user_agent ~ "Download Demon") {
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        set $block_user_agents 1;
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    }
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    if ($http_user_agent ~ "Go-Ahead-Got-It") {
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        set $block_user_agents 1;
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    }
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    if ($http_user_agent ~ "TurnitinBot") {
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        set $block_user_agents 1;
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    }
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    if ($http_user_agent ~ "GrabNet") {
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        set $block_user_agents 1;
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    }
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    if ($block_user_agents = 1) {
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        return 403;
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    }
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}
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# The secure HTTPS server.
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@ -44,4 +159,123 @@ server {
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	ssl_certificate_key $SSL_KEY;
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	# ADDITIONAL DIRECTIVES HERE
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	## Additional Exploit blocks added by Alon Ganon
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	# alon@ganon.me https://alonganon.info
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	# Recommended from here https://www.howtoforge.com/nginx-how-to-block-exploits-sql-injections-file-injections-spam-user-agents-etc
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	## Block SQL injections
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    set $block_sql_injections 0;
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    if ($query_string ~ "union.*select.*\(") {
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        set $block_sql_injections 1;
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    }
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    if ($query_string ~ "union.*all.*select.*") {
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        set $block_sql_injections 1;
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    }
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    if ($query_string ~ "concat.*\(") {
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        set $block_sql_injections 1;
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    }
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    if ($block_sql_injections = 1) {
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        return 403;
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    }
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    ## Block file injections
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    set $block_file_injections 0;
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    if ($query_string ~ "[a-zA-Z0-9_]=http://") {
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        set $block_file_injections 1;
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    }
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    if ($query_string ~ "[a-zA-Z0-9_]=(\.\.//?)+") {
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        set $block_file_injections 1;
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    }
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    if ($query_string ~ "[a-zA-Z0-9_]=/([a-z0-9_.]//?)+") {
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        set $block_file_injections 1;
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    }
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    if ($block_file_injections = 1) {
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        return 403;
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    }
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    ## Block common exploits
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    set $block_common_exploits 0;
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    if ($query_string ~ "(<|%3C).*script.*(>|%3E)") {
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        set $block_common_exploits 1;
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    }
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    if ($query_string ~ "GLOBALS(=|\[|\%[0-9A-Z]{0,2})") {
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        set $block_common_exploits 1;
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    }
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    if ($query_string ~ "_REQUEST(=|\[|\%[0-9A-Z]{0,2})") {
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        set $block_common_exploits 1;
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    }
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    if ($query_string ~ "proc/self/environ") {
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        set $block_common_exploits 1;
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    }
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    if ($query_string ~ "mosConfig_[a-zA-Z_]{1,21}(=|\%3D)") {
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        set $block_common_exploits 1;
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    }
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    if ($query_string ~ "base64_(en|de)code\(.*\)") {
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        set $block_common_exploits 1;
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    }
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    if ($block_common_exploits = 1) {
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        return 403;
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    }
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    ## Block spam
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    set $block_spam 0;
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    if ($query_string ~ "\b(ultram|unicauca|valium|viagra|vicodin|xanax|ypxaieo)\b") {
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        set $block_spam 1;
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    }
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    if ($query_string ~ "\b(erections|hoodia|huronriveracres|impotence|levitra|libido)\b") {
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        set $block_spam 1;
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    }
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    if ($query_string ~ "\b(ambien|blue\spill|cialis|cocaine|ejaculation|erectile)\b") {
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        set $block_spam 1;
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    }
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    if ($query_string ~ "\b(lipitor|phentermin|pro[sz]ac|sandyauer|tramadol|troyhamby)\b") {
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        set $block_spam 1;
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    }
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    if ($block_spam = 1) {
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        return 403;
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    }
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    ## Block user agents
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    set $block_user_agents 0;
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    # Don't disable wget if you need it to run cron jobs!
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    #if ($http_user_agent ~ "Wget") {
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    #    set $block_user_agents 1;
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    #}
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    # Disable Akeeba Remote Control 2.5 and earlier
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    if ($http_user_agent ~ "Indy Library") {
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        set $block_user_agents 1;
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    }
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    # Common bandwidth hoggers and hacking tools.
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    if ($http_user_agent ~ "libwww-perl") {
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        set $block_user_agents 1;
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    }
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    if ($http_user_agent ~ "GetRight") {
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        set $block_user_agents 1;
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    }
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    if ($http_user_agent ~ "GetWeb!") {
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        set $block_user_agents 1;
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    }
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    if ($http_user_agent ~ "Go!Zilla") {
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        set $block_user_agents 1;
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    }
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    if ($http_user_agent ~ "Download Demon") {
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        set $block_user_agents 1;
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    }
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    if ($http_user_agent ~ "Go-Ahead-Got-It") {
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        set $block_user_agents 1;
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    }
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    if ($http_user_agent ~ "TurnitinBot") {
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        set $block_user_agents 1;
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    }
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    if ($http_user_agent ~ "GrabNet") {
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        set $block_user_agents 1;
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    }
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    if ($block_user_agents = 1) {
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        return 403;
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    }
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}
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