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CSF (ConfigServer Firewall) on a Linux system and you block a lot of IP addresses. Servers running iptables with CSF firewall can become slow and bogged down while processing the sometimes hundreds of IP addresses in CSF's iptables chains. Thankfully, it is possible to quickly and easily alleviate this slowdown by installing and configuring a took called ipset. This option allows you to use ipset v6+ for the following csf options: CC_* and /etc/csf/csf.blocklist, /etc/csf/csf.allow, /etc/csf/csf.deny, GLOBAL_DENY, GLOBAL_ALLOW, DYNDNS, GLOBAL_DYNDNS, MESSENGER ipset will only be used with the above options when listing IPs and CIDRs. Advanced Allow Filters and temporary blocks use traditional iptables. To use this option you must have a fully functioning installation of ipset installed either via rpm or source from http://ipset.netfilter.org/ It’s a straight forward process. CentOS, Red Hat and Fedora (yum based) users : # yum install ipset -y Ubuntu or Debian: # sudo

In our Previous Tutorial Part 4 , We have fixed  Nginx 504 Gateway Time-out for our PrestaShop installation. Now We will run PrestaShop installation again. You have to delete all the tables from DB(datahead_db) that you created for PrestaShop. Open your Browser and visit your domain again. Follow all the steps and also provide DataBase details again and Click on "Next" Your PrestaShop installation is finished successfully. For security purposes, you must delete the "install" folder. Login to your Admin Panel PrestaShop 1.7.6.3 DashBoard:

Welcome to our serious tutorial. When we are installing PrestaShop 1.7.6.3 on CWP7.pro server, we are getting error "Nginx 504 Gateway Time-out " That means CWP The gateway did not receive a timely response from the upstream server or application. 1. Adjust Timeout Value  for proxy settings  # vi /etc/nginx/proxy.inc proxy_connect_timeout 600s; proxy_send_timeout 600; proxy_read_timeout 600; 2. Change the default_socket_timeout  # vi /opt/alt/php-fpm72/usr/php/php.ini default_socket_timeout 600 Change PHP-FPM Configuration: Default Location: /opt/alt/php-fpm72/usr/etc/ /opt/alt/php-fpm72/usr/etc/php-fpm.d/ /opt/alt/php-fpm72/usr/etc/php-fpm.d/users/ 3. Add following value cwpsvc.conf file : # vi /opt/alt/php-fpm72/usr/etc/php-fpm.d/cwpsvc.conf [cwpsvc] listen = /opt/alt/php-fpm72/usr/var/sockets/cwpsvc.sock listen.owner = cwpsvc listen.group = cwpsvc listen.mode = 0640 user = cwpsvc group = cwpsvc ;request_slowlog_timeout = 5s ;slowlog = /opt/alt/php-fpm72/

Connection Limit Protection: This option configures iptables to offer more protection from DOS attacks against specific ports. It can also be used as a way to simply limit resource usage by IP address to specific server services. This option limits the number of concurrent new connections per IP address that can be made to specific ports This feature does not work on servers that do not have the iptables module xt_connlimit loaded. Typically, this will be with MONOLITHIC kernels. VPS server admins should check with their VPS host provider that the iptables module is included Note: Run /etc/csf/csftest.pl to check whether this option will function on this server Step: Go to your CSF WebUI Panel and Select " Port Flood Settings" : You can set limit for the number of connections to particular port by altering the value “CONLIMIT”. CONNLIMIT = 80;20,443;15 The above value will limit only 20 connections to the port 80 and 15 connections to the port 443 from singl

MailScanner is a highly respected open source email security system design for Linux-based email gateways. It is used at over 40,000 sites around the world, protecting top government departments, commercial corporations and educational institutions. This technology has fast become the standard email solution at many ISP sites for virus protection and spam filtering. MailScanner scans email for viruses, spam, phishing, malware, and other attacks against security vulnerabilities and plays a major part in the security of a network. Install MailScanner First stop and disable postfix. We will use MailScanner in the future. # systemctl stop postfix # systemctl disable postfix Download MailScanner and install: # cd /usr/local/src/ # git clone https://github.com/MailScanner/v5.git # cd v5 # cd builds # rpm -ivh MailScanner-5.2.2-1.rhel.noarch.rpm # /usr/sbin/ms-configure 1. Hit Enter to start 2. Intsall an MTA? [1] : N 3. Install EPEL? : n 4. Install missing tnef via RPM?

I am using MailScanner Email Security Gateway to scan emails for viruses, spam, phishing, malware, and other attacks against security vulnerabilities. Under the hood, MailScanner uses ClamAV(clamd) for virus scan, and uses Spamassassin to scan for spams. I am also using CWP7pro.admin where all packages are already installed and running smoothly. You just need prepare your ClamAV antivirus usable for MailScanner. 1. ClamAVInstallation (Install ClamAV): At first check the below packages are installed or not. If any packages is missing , run the below command to install # yum info clamav-server clamav-data clamav-update clamav-filesystem clamav clamav-scanner-systemd clamav-devel clamav-lib clamav-server-systemd # yum install clamav-server clamav-data clamav-update clamav-filesystem clamav clamav-scanner-systemd clamav-devel clamav-lib clamav-server-systemd Unrar RPM Sources: http://pkgs.repoforge.org/rpmforge-release/rpmforge-release-0.5.3-1.el7.rf.x86_64.rpm  [ This link will

The Bayesian classifier in Spamassassin tries to identify spam by looking at what are called tokens; words or short character sequences that are commonly found in spam or ham. If I've handed 100 messages to sa-learn that have the phrase penis enlargement and told it that those are all spam, when the 101st message comes in with the words penis and enlargment, the Bayesian classifier will be pretty sure that the new message is spam and will increase the spam score of that message. In order for SpamAssassin to be accurate, you must train it on your specific mail patterns. SpamAssassin has a Bayesian classifier that can be used to help refine the classification of spam mail. The sa-learn interface allows you to train SpamAssassin to recognize good mail and junk mail. You need to train with both spam and ham mails. One type of mail alone will not have any effect. To filter for spam: Save spam into a new mail folder called Spam Save non-spam (ham) into a new folder called Ham. You m