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−	Using ASL 2.0	+	= Introduction =
−	'''Quickstart Documentation'''	+	Atomic Secured Linux(tm), or "ASL" for short, is a Unified Security Suite addon for Linux(tm) systems designed to protect servers against zero day threats.  Unlike other expensive security "solutions" that pretend to achieve security through signature-based detection, known-vulnerability patching and other reactive methods, Atomic Secured Linux(tm) provides real proactive security. The only solution that protects both your applications and operating system, Atomic Secured Linux is essential for public-facing servers and shared-hosting environments.
−	1) Update the signature database	+	And Atomic Secured Linux (ASL) is uniquely designed for beginners and experts alike. You just install ASL onto your existing system and it does the work for you, plus you can try it for free!
−	asl -u	+
−	2) Run a report	+	ASL works by proactively immunizing the system against whole classes of vulnerabilities, and combines security at all layers, from the firewall, to your applications and services, and all the way down to the kernel to provide the most complete multi-spectrum protection solution available for Linux servers today.  It helps to ensure that your system is secure and also compliant with commercial and government security standards. ASL is uniquely effective at addressing emerging threats posed by vulnerabilities in todays complex systems and applications, such as cloud and web hosting environments, multiuser systems, CRM's, ERPs, forums, shopping carts, Content Management systems, custom applications and more.
−	asl -r	+
−	3) Read the App Inventory DB	+	== '''Features in ASL''' ==
−	less /var/asl/data/webapp.db	+
−	'''Understanding the Report'''	+	* Web Application Firewall with Realtime Atomicorp/Gotroot.com rules
−	Checking for ASL kernel:                                  [FAILED]	+	* Highspeed Stateful firewall
−	ASL kernel is not running, which means you are exposed to Buffer overrun attacks, no TPE, and no GRSEC ACL capability	+
		+	* Attack Chain Disruption to prevent zero day attacks
		+	* Network based Intrusion Prevention System
		+	* Host Based Intrusion Prevention for event monitoring, file system integrity checking, and rootkit protection
		+	* Web Based Security Information Manager and Unified Threat Manager
−	'''Configuration'''	+	* Vulnerability scanner and vulnerability repair and elimination system
−	Currently the web interface is incomplete. ASL can be configured through /etc/asl/config, the following is a list of each setting and what it does:	+	* Realtime Malware Protection
−		+
−	# Authentication information	+
−	CONFIGURED=yes                                        # an internal setting, if its set to no you would (in theory) be forced through a configuration dialog	+
−	USERNAME="USERNAME"	+
−	PASSWORD="PASSWORD"	+
−	UPDATEPATH="www.atomicorp.com/channels/asl-bleeding/rules/"  # where the rule updater will grab updates	+
−	ASLHOME="/var/asl"                                    # internal variable, dont modify	+
−	# ASL general config	+	* Hardened secure kernel to protect against rootkits
−	NOTIFY=yes                            # used to determine if modules that can send email notifications, will do so. Setting this to: no, will disable ALL email based notifications	+
−	EMAIL="scott@atomicrocketturtle.com"  # a master email address, settings below will use the $EMAIL variable to assign this address. Can be overridden per app.	+
−	ADMIN_USERS="SOMEUSER"                # who your administrative users are, this is used by modules like SSH to harden the system. Its highly recommended to define admin users, separated by whitespace.	+
−	# list of hosts separated by whitespace	+
−	IP_WHITELIST="127.0.0.1 10.10.10.10 10.10.10.11 10.10.10.12"    # IP's listed here will not be shunned by any of the IDS's (modsec, denyhosts, etc)	+
−	# webserver, custom	+
−	SYSTEM_TYPE="webserver"                # webserver, or custom right now. Used by ossec, and some other modules. Use webserver only for now.	+
−	# Kernel config	+	* Self Healing system for system, database and application errors
−	# Disable module_loading after the system has booted	+
−	VSERVER=no                            # probably will be deprecated	+
−	ALLOW_kmod_loading=no                  # ASL kernels can be set to disallow module loading to defend against kernel root kits. The default is to NOT allow module_loading after the system has booted.	+
−	# PSMOD config	+	* Self Learning Least Privilege Role Based Access Control System
−	PSMON_ENABLED=yes                      # Turn PSMON and its checks On or Off	+
−	PSMON_EMAIL="$EMAIL"                  # who to email PSMON alerts to	+
−	PSMON_FROM="psmon@$HOSTNAME"          # From: line for PSMON	+
−	# OSSEC config	+	* System Hardening tools
−	OSSEC_ENABLED=yes                      # Enable OSSEC	+
−	OSSEC_MODE="server"                    # options are client, server, local. Servers can accept OSSEC events from clients. Local is a standalone OSSEC system.	+
−	OSSEC_EMAIL="$EMAIL"                  # Where OSSEC email alerts go	+
−	OSSEC_SMTP_SERVER="localhost"          # System ossec sends email through	+
−	OSSEC_FROM="ossec@$HOSTNAME"          # From line for OSSEC alerts	+
−	OSSEC_SHUN_ENABLE_TIMEOUT=yes          # Enables expiration of OSSEC shunning events (see IP_WHITELIST above)	+
−	OSSEC_SHUN_TIME="600"                  # Time a shunned host will remain on the blacklist (10 minutes)	+
−	# MODSECURITY config	+	* Stand Alone secure web GUI
−	MODSEC_ENABLED=yes                    # Turn MOD_SECURITY and its checks on/off	+
−	MODSEC_SERVERSIG="Apache"              # The "signature" the system will present to clients. The default is to send a client versions of the software installed. This helps against recon attacks	+
−	MODSEC_UPLOADDIR="/var/asl/data/suspicious" # Where suspicious uploaded files (POSTS) will be stored	+
−	MODSEC_KEEPFILES="RelevantOnly"        # Off, or RelevantOnly. Related to above, this tells the system to keep those files or not.	+
−	MODSEC_LOG404=no                 # not used yet. Application default is to log 404 errors in mod_security logs.	+
−	MODSEC_LOGTYPE="Serial"                # Serial or Concurrent. Serial sets modsecurity to log all events to one log file.	+
−	MODSEC_LOGFILE="modsec_audit.log"      # The log file for above.	+
−	MODSEC_LOGELEMENT="ABIFHZ"            # Elements of an event that will be logged	+
−	#A = audit log header (mandatory)	+
−	#B = request headers	+
−	#I = request body, except when multipart/form-data encoding is used	+
−	#F = final response headers	+
−	#H = audit log trailer	+
−	#Z = final boundary (mandatory)	+
−	MODSEC_REQMEMLIMIT="131072"            # Maximum size of the request body to keep in memory,  higher value requires more server memory, lower can impact disk I/O	+
−	MODSEC_DEBUGLOG=yes                    # not used yet (on by default: modsec_debug.log)	+
−	MODSEC_DATADIR="/var/asl/data/msa"    # top level dir used for mod_security internals. Must be read/write by the apache user	+
−	MODSEC_TMPDIR="/tmp"                  # Directory where temporary files are created	+
−	# Rule configuration starts here	+	* Malware uploader scanner
−	MODSEC_RULES_POLICY=on                # enable/disable the HTTP Policy rules	+
−	MODSEC_RULES_ROBOTS=on                # enable/disable the Bad Robot ruls	+
−	MODSEC_RULES_GENERIC=on                # enable/disable generic attack rules	+
−	MODSEC_RULES_TROJAN=on                # enable/disable trojan detection rules	+
−	MODSEC_RULES_OUTBOUND=off              # enable/disable outbound rules (recommend this OFF for PSA environments)	+
−	MODSEC_RULES_MARKETING=off            # enable/disable marketing tracking rules (google, msn, yahoo bots)	+
−	MODSEC_RULES_LOCAL=on                  # enable/disable local rules	+
		+	* Brute force attack detection (Control Panels, FTP, SSH, Web applications, SMTP, POP, IMAP and more!)
		+	* Just In Time Patching system:  Automatic security rules to protect unpatched systems, and unpatched web applications.
		+	* Rootkit detection and prevention, including kernel level rootkits
−	# PHP Functions	+	* Process monitoring watchdog, to ensure critical and security services are always running
−	PHP_CHECKS=yes                        # (yes/no) enable/disable php checks	+
−	PHP_SAFE_MODE=yes                      # (yes/no) enable safe_mode checks. Turning safe_mode off exposes you to a number of threats, including remote file inclusion	+
−	ALLOW_dl=no                            # (yes/no) disables the dl() function. dl() would allow an attacker to load their own extension into php.	+
−	ALLOW_exec=no	+
−	ALLOW_leak=no	+
−	ALLOW_passthru=no	+
−	ALLOW_pfsockopen=no	+
−	ALLOW_phpinfo=yes	+
−	ALLOW_popen=no	+
−	ALLOW_posix_kill=no	+
−	ALLOW_posix_mkfifo=no	+
−	ALLOW_posix_setpgid=no	+
−	ALLOW_posix_setsid=no	+
−	ALLOW_posix_setuid=no	+
−	ALLOW_proc_close=no	+
−	ALLOW_proc_get_status=no	+
−	ALLOW_proc_nice=no	+
−	ALLOW_proc_open=no	+
−	ALLOW_proc_open=no	+
−	ALLOW_proc_terminate=no	+
−	ALLOW_shell_exec=no	+
−	ALLOW_show_source=no	+
−	ALLOW_system=no	+
−	# Denyhosts settings	+	* Web Application inventory module
−	# uses EMAIL for notifications	+
−	DENYHOSTS_ENABLED=yes	+
−	DENYHOSTS_EMAIL="$EMAIL"	+
−	DENYHOSTS_FROM="denyhosts@$HOSTNAME"	+
−	DENYHOSTS_SYSLOG=yes	+
−	DENYHOSTS_SHUN_TIME="4w"	+
−	# SSH	+	* Systems configuration validation (SSH, PHP and more)
−	ALLOW_ssh_proto1=no	+
−	ALLOW_root_logins=no	+
−	DISABLE_strict_mode=no	+
−	DISABLE_ignore_rhosts=no	+
−	DISABLE_pubkey_authentication=no	+
−	ALLOW_password_authentication=no	+
−	DISABLE_privilege_separation=no	+
−	# Rkhunter settings	+	* General security hardening (unnecessary services, etc)
−	RKHUNTER_ENABLED=yes	+
−	RKHUNTER_EMAIL=$EMAIL	+	* PHP configuration, checks and fixes dangerous settings
		+
		+	* Apache configuration checks and fixes
		+
		+	* DOS protection system
		+
		+	* Rule updater for Mod_security, GRsecurity, HIDS, Self Healing and the Application Inventory system
		+
		+	* Custom code for system hardening
		+
		+	* Special ClamAV rules
		+
		+	= Downloading ASL =
		+
		+	== '''How can I get a copy of ASL?''' ==
		+
		+	Please visit the [https://atomicorp.com/features/ Atomic Secured Linux product page].
		+
		+	== '''Can I try it out first?''' ==
		+
		+	Absolutely! Just sign up for a [https://atomicorp.com/amember/signup/index/c/oMzRCoqd no risk and no obligation free 10 day trial here].
		+
		+	== '''Where is the ASL FAQ?''' ==
		+
		+	[[ASL FAQ]] - Atomic Secured Linux Frequently Asked Questions (FAQ)
		+
		+
		+	= '''Installing ASL''' =
		+
		+	[http://www.atomicorp.com/wiki/index.php/ASL_installation Installation Page]
		+
		+
		+	== Configuration ==
		+
		+	ASL can be configured through the ASL GUI. Please see the [[ASL Configuration]] page for documentation.
		+
		+	== '''Reporting False Positives''' ==
		+
		+	See the [[Reporting False Positives]] page for details.
		+
		+	== ASL Web GUI Password Reset ==
		+
		+	To reset your password, run this command:
		+
		+	/var/asl/bin/asl-web-passwd your_user_name
		+
		+	Note: This utility is only valid post-installation.

---

Latest revision as of 10:32, 10 September 2020

Contents 1 Introduction 1.1 Features in ASL 2 Downloading ASL 2.1 How can I get a copy of ASL? 2.2 Can I try it out first? 2.3 Where is the ASL FAQ? 3 Installing ASL 3.1 Configuration 3.2 Reporting False Positives 3.3 ASL Web GUI Password Reset

[edit] Introduction

Atomic Secured Linux(tm), or "ASL" for short, is a Unified Security Suite addon for Linux(tm) systems designed to protect servers against zero day threats. Unlike other expensive security "solutions" that pretend to achieve security through signature-based detection, known-vulnerability patching and other reactive methods, Atomic Secured Linux(tm) provides real proactive security. The only solution that protects both your applications and operating system, Atomic Secured Linux is essential for public-facing servers and shared-hosting environments.

And Atomic Secured Linux (ASL) is uniquely designed for beginners and experts alike. You just install ASL onto your existing system and it does the work for you, plus you can try it for free!

ASL works by proactively immunizing the system against whole classes of vulnerabilities, and combines security at all layers, from the firewall, to your applications and services, and all the way down to the kernel to provide the most complete multi-spectrum protection solution available for Linux servers today. It helps to ensure that your system is secure and also compliant with commercial and government security standards. ASL is uniquely effective at addressing emerging threats posed by vulnerabilities in todays complex systems and applications, such as cloud and web hosting environments, multiuser systems, CRM's, ERPs, forums, shopping carts, Content Management systems, custom applications and more.

[edit] Features in ASL

• Web Application Firewall with Realtime Atomicorp/Gotroot.com rules

• Highspeed Stateful firewall

• Attack Chain Disruption to prevent zero day attacks

• Network based Intrusion Prevention System

• Host Based Intrusion Prevention for event monitoring, file system integrity checking, and rootkit protection

• Web Based Security Information Manager and Unified Threat Manager

• Vulnerability scanner and vulnerability repair and elimination system

• Realtime Malware Protection

• Hardened secure kernel to protect against rootkits

• Self Healing system for system, database and application errors

• Self Learning Least Privilege Role Based Access Control System

• System Hardening tools

• Stand Alone secure web GUI

• Malware uploader scanner

• Brute force attack detection (Control Panels, FTP, SSH, Web applications, SMTP, POP, IMAP and more!)

• Just In Time Patching system: Automatic security rules to protect unpatched systems, and unpatched web applications.

• Rootkit detection and prevention, including kernel level rootkits

• Process monitoring watchdog, to ensure critical and security services are always running

• Web Application inventory module

• Systems configuration validation (SSH, PHP and more)

• General security hardening (unnecessary services, etc)

• PHP configuration, checks and fixes dangerous settings

• Apache configuration checks and fixes

• DOS protection system

• Rule updater for Mod_security, GRsecurity, HIDS, Self Healing and the Application Inventory system

• Custom code for system hardening

• Special ClamAV rules

[edit] Downloading ASL

[edit] How can I get a copy of ASL?

Please visit the Atomic Secured Linux product page.

[edit] Can I try it out first?

Absolutely! Just sign up for a no risk and no obligation free 10 day trial here.

[edit] Where is the ASL FAQ?

ASL FAQ - Atomic Secured Linux Frequently Asked Questions (FAQ)

[edit] Installing ASL

Installation Page

[edit] Configuration

ASL can be configured through the ASL GUI. Please see the ASL Configuration page for documentation.

[edit] Reporting False Positives

See the Reporting False Positives page for details.

[edit] ASL Web GUI Password Reset

To reset your password, run this command:

/var/asl/bin/asl-web-passwd your_user_name

Note: This utility is only valid post-installation.