Steps in hardening your mail service :
Some of the things which can be done from WHM to harden your mail service : ========================= From WHM Main >> Server Configuration >> Tweak Settings: * POP3 connection limit option...
View ArticleProtect your server from DDoS attacks – Part 1 !!
What is a DDoS attack ? DDoS, short for Distributed Denial of Service, is a type of DOS attack where multiple compromised systems — which are usually infected with a Trojan (70% of the time)– are used...
View Article.htaccess files – Basics
A small note on .htaccess file. What is .htaccess? .htaccess is a configuration file for use on web servers running the Apache Web Server. When an .htaccess file is placed in a directory it is detected...
View ArticleVirtuozzo – Basics
Virtuozzo is a software application for enterprise server virtualization that allows an administrator to create virtual environments on a host computer at the operating system (OS) layer. Instead of...
View ArticleDovecot issue – dovecot.index file broken ?
Dovecot issue – dovecot.index file corrupted? Any email user not able to access via his webmail? Does it show logins failed, even if you are cent percent sure logins are correct? Check...
View Articleip_conntrack: table full, dropping packet !!
Facing an issue with the kernel module, ‘ip_conntrack’ ? Checking /var/log/messages gives something like this ? ========== Nov 13 14:45:23 host kernel: ip_conntrack: VPS xxx table full, dropping...
View ArticleIssue with Apache and SymLinks
The vulnerability with Symlinks and Apache is a known issue in a shared hosting environment. 1st step employed by the attacker in order to carry out this attack it to find a compromised ‘single’...
View ArticleOptions +Includes — what is it ?
What is the option seen as Options +Includes ?? SSI (Server Side Includes) are directives that are placed in HTML pages, and evaluated on the server while the pages are being served. They let you add...
View Articlecsf & iptables cheatsheet !!
CSF csf -a : allow an ip and add it to /etc/csf.allow csf -ar : remove an ip from /etc/csf.allow and delete rule csf -d : deny an ip and add to /etc/csf.deny csf -dr : unblock an ip and remove...
View ArticleOpen resolvers !!
Open resolver ?? Before getting to know what is an open resolver, you need to know what is recursion, ie recursive queries ! Suppose you have a DNS server configured and a local machine which uses your...
View ArticleA cPanel bug ( for version — 11.40 ) with clamAV
Getting the following error message ? =========== Original Message -------- Subject: Cron /usr/local/cpanel/3rdparty/bin/freshclam --quiet --no-warnings From: (Cron Daemon) To: root@hostname Date:...
View ArticleApache error — No space left on device: Couldn’t create accept lock
Apache: [emerg] (28)No space left on device: Couldn’t create accept lock [notice] suEXEC mechanism enabled (wrapper: /usr/local/apache/bin/suexec) [crit] (28)No space left on device: mod_rewrite:...
View ArticleError when trying to FTP !
When trying to FTP-in, facing this error ? : ================= Status: Resolving address of xxxxxxxxxxxxxxx.com Status: Connecting to xx.xx.xx.xx:21… Status: Connection established, waiting for welcome...
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