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−	== '''Before You Start''' ==	+	= Introduction =
−	'''Please note: If you purchased a Rules Only subscription, please go to, and follow the instructions here: https://www.atomicorp.com/wiki/index.php/Atomic_ModSecurity_Rules#Optional_Manual_Installation '''.  These are instructions to install [[ASL]].	+
−	If you purchased Atomic Secured Linux, then continue to the steps below.	+	ASL is designed to integrate with your existing operating system. Customized environments that deviate from OS vendor designed standards, and packaging should consult with our services group for a custom solution.
−	== Introduction ==	+	== Before You Start ==
−	ASL is designed to integrate with your existing operating system. Customized environments that deviate from OS vendor designed standards, and packaging can use ASL Lite, or consult with our services group for a custom solution.	+	'''Please note: If you purchased a Rules Only subscription, please go to, and follow the instructions here: https://www.atomicorp.com/wiki/index.php/Atomic_ModSecurity_Rules#Optional_Manual_Installation '''.  These are instructions to install [[ASL]].
−	Dedicated systems will be using the ASL hardened kernel. For older distributions this can involve changes in the names of kernel modules involved with SATA, SCSI, and Network card modules.	+	If you purchased Atomic Secured Linux, then continue to the steps below.
−	== Requirements ==	+	== Prerequisites ==
−	ASL should be installed on a system with at least 1 GB of memory, and preferablly a system with 2GB of memory.  ASL will work with 32bit systems, but 64bit systems are recommend.	+	Please ensure that your system meets all prerequisites before installing ASL.  The [[ASL prerequisites]] page includeds important information outlining the systems requirements for ASL to install and function correctly, as well as recommendations for it to perform optimally.
−	Please see the [[ASL prerequisites]] page for additional requirements and recommendations.	+	= Installation and Downloads =
−	== '''Running the Automated installer''' ==	+	== Command Line installation==
−	Installing ASL is as simple as running one command, and answering a few questions about your system. The rest is taken care of for you by ASL.  No need to mess around with configuration files, installing rpms, compiling from source or setting up repos.  Just run the installer as root and let us do the work for you.	+	=== Step 1: Read the Notes ===
−	wget -q -O - https://www.atomicorp.com/installers/asl |sh	+	Confirm that your system meets the ASL requirements, which are documented on the [[ASL prerequisites]] page.
−	If you prefer to use a standard HTTP connection run this command:	+	Note: ASL will harden your system, so when building a new system or installing other software, we recommend you install ASL last so that it can harden your system with all software installed.
−	wget -q -O - http://www.atomicorp.com/installers/asl |sh	+	=== Step 2: Run the Automated ASL installer ===
		+	'''Pre Step 1)'''
−	And thats it!  Follow the instructions in the installer being sure to answer the configuration questions appropriately for your system.  Once the installation is complete you will need to reboot your system to boot into the new hardened kernel that comes with ASL.  You do not have to use this kernel to enjoy the other features of ASL, but we recommend you use the hardened kernel as it includes many additional security features that are not found in non-ASL system.	+	If the system does not have mysql or mariadb installed, run these commands as root:
−	== Changing your ASL password ==	+	RHEL/Centos 6:
−	You can change your ASL password via the License Manager at this URL:	+	''yum install mysql-server''
−	https://www.atomicorp.com/amember/member.php	+	''service mysqld start''
−	== Post-Installation Quickstart/Configuration ==	+	''systemctl enable mysqld''
−	Log into the GUI:
−	https://YOUR_SERVERS_IP:30000	+	RHEL/Centos 7:
−	You can view alerts, block attackers, configure ASL and use its many features from the GUI.	+	''yum install mariadb-server''
−	If you're a command line person you can also run or re-run many of ASL's features from the command line.  Here are a few highlights:	+	''service mariadb start''
−	1) Configure/Re-Configure ASL	+	''systemctl enable mariadb''
−	asl -c	+	'''Step A)'''
−	2) Scan the system for vulnerabilities, malware and other security issues.	+	Become root on your system. To become root run this command:
−	asl -s	+	''su -''
−	3) Scan the system for vulnerabilities, malware and other security issues and have ASL fix the system.	+	then enter your root password.
−	asl -s -f	+	'''Step B)'''
−	4) Configure the ASL GUI	+	Cut and paste the command below, and run this command as root:
−	/var/asl/bin/asl-web-setup	+	''wget -q -O - https://updates.atomicorp.com/installers/asl |sh''
−	5) Check to make sure you haven't locked yourself out of your system	+	Follow the instructions in the installer being sure to answer the configuration questions appropriately for your system.
−	Before you reboot your system and if you told ASL to lock down SSH, make sure you can log into your system. Don't close out your current session, log in with a new session.  This way you can confirm that you haven't installed bad ssh keys, or otherwise configured your server so you can't log in.	+	'''Note:  You must have a version of wget installed that supports HTTPS to install ASL, as described on the ASL prerequisites page.'''
−	6) Finally, we highly recommend you click on the "Support" tab in the ASL GUI, or go to this URL to setup your support account:	+	If you do not get any output from the installation command it is likely wget on your system was replaced with a crippled version that does not support SSL.  Please see this article to test if your wget supports SSL if you are unsure:
−	https://www.atomicorp.com/portal	+	https://www.atomicorp.com/wiki/index.php/ASL_prerequisites#wget
−	The support system uses the same username and password used to install ASL (your ASL username and password).  Please make sure you can log into the support portal to make use of the support portals features such as case management, bug tracking and the knowledge base.	+	See the [[unattended installs]] article for advanced instructions for unattended installations.
−	== '''Testing the Kernel''' ==	+	=== Step 3: (Optional)  If you have installed the ASL kernel ===
		+	Once the installation is complete, if you want to use the secure ASL kernel you will need to reboot your system to boot into the new hardened kernel that comes with ASL.  '''You do not have to use this kernel to enjoy the other features of ASL''', but we recommend you use the hardened kernel as it includes many additional security features that are not found in non-ASL kernels.
−	'''Grub Users'''	+	Note: The secure ASL kernel is not required to run ASL, but it will make your system more secure and protect your system from attacks that your regular kernel can not.
−	1) Once the Atomic kernel is installed, determine which position the ''Atomic kernel'' has been installed.	+	==== VPS based systems ====
−	Example:	+	If you are using a [[VPS]] based virtualization technology, like openvz or Virtuzzo, you can not install any kernel in a VPS.  VPS' do not have a kernel, they share the host systems kernel.  Therefore, you will not be able to install any kernel in a VPS, including the ASL secure kernel, and do not need to reboot.
−	[root@ac3 ~]# cat /etc/grub.conf	+
−	# grub.conf generated by anaconda	+	==== Cloud Linux ====
−	#	+
−	# Note that you do not have to rerun grub after making changes to this file	+
−	# NOTICE:  You have a /boot partition.  This means that	+
−	#          all kernel and initrd paths are relative to /boot/, eg.	+
−	#          root (hd0,0)	+
−	#          kernel /vmlinuz-version ro root=/dev/hda3	+
−	#          initrd /initrd-version.img	+
−	#boot=/dev/hda	+
−	default=1	+
−	timeout=5	+
−	serial --unit=0 --speed=57600	+
−	terminal --timeout=5 serial console	+
−	title CentOS (2.6.17-1.art)	+
−	root (hd0,0)	+
−	kernel /vmlinuz-2.6.17-1.art ro root=LABEL=/ console=ttyS0,57600n8 selinux=0	+
−	initrd /initrd-2.6.17-1.art.img	+
−	title CentOS (2.6.9-34.0.2.ELsmp)	+
−	root (hd0,0)	+
−	kernel /vmlinuz-2.6.9-34.0.2.ELsmp ro root=LABEL=/ console=ttyS0,57600n8	+
−	initrd /initrd-2.6.9-34.0.2.ELsmp.img	+
−	Note the line: default=1, this indicates the kernel the system will boot by default, starting at position 0. Position 0 is "title CentOS (2.6.17-1.art)", and position 1 is "title CentOS (2.6.9-34.0.2.ELsmp)" in this example, indicating the system is configured to boot into the default CentOS kernel.	+	'''Cloudlinux requires that you use their default kernel with their product.'''  Therefore, you should not use the secure ASL kernel with Cloud Linux. Please see the link below to ensure you have your system configured to use the appropriate Cloud Linux kernel with their product.
−	2) Type: grub	+	https://www.atomicorp.com/wiki/index.php/Kernel#Setting_which_kernel_to_boot
−	the following will be displayed:	+	Note:  When using the Cloud Linux kernel ASL will report security vulnerabilities in the Cloud Linux kernel.  These security vulnerabilities are real.  The Cloud Linux kernel does not include the necessary security enhancements to protect you from these vulnerabilities.  Please direct any questions regarding Cloud Linux vulnerabilities to Cloud Linux support.
−	GNU GRUB  version 0.97 (640K lower / 3072K upper memory)	+
−	[ Minimal BASH-like line editing is supported.  For the first word, TAB	+
−	lists possible command completions.  Anywhere else TAB lists the possible	+
−	completions of a device/filename.]	+
−	grub>	+
−	3) At the grub prompt set the default kernel to 0, and to only boot once with the following:	+	=== Before you reboot ===
−	grub> savedefault --default=0 --once	+	==== Check to make sure you can log in ====
−	4) type: quit	+	Check to make sure you haven't locked yourself out of your system.  If you told ASL to lock down SSH, make sure you can log into your system.  Don't close out your current session, '''log in with a new session'''.  This way you can confirm that you haven't installed bad ssh keys, or otherwise configured your server so you can't log in.
−	5) reboot the system. If for some reason the kernel does not work with the Atomic kernel, or is otherwise non-responsive, powercycling the system will restore the system to the default kernel.	+	If you are rebooting into the secure ASL kernel, make sure you have an alternative means to log into your system should your system encounter an issue rebooting.  For example, a diverse means such as serial port access, or a KVM system, and not SSH or other direct network based remote access.  If a Linux system fails to reboot, network based protocols like SSH will not work.
−	'''Lilo Users'''	+	==== Cloud Linux ====
−	1) The art kernel should be listed in /boot - for example:	+	'''Cloudlinux requires that you use their default kernel with their product.'''  Therefore, you should not use the secure ASL kernel with Cloud Linux.  Please see the link below to ensure you have your system configured to use the appropriate Cloud Linux kernel with their product.
−	/boot/vmlinuz-2.6.19-7.art	+	https://www.atomicorp.com/wiki/index.php/Kernel#Setting_which_kernel_to_boot
−	2) Create a symbolic link to this:	+	Note: When using the Cloud Linux kernel ASL will report security vulnerabilities in the Cloud Linux kernel.  These security vulnerabilities are real.  The Cloud Linux kernel does not include the necessary security enhancements to protect you from these vulnerabilities.  Please direct any questions regarding Cloud Linux vulnerabilities to Cloud Linux support.
−	ln -s  /boot/vmlinuz-2.6.19-7.art  /boot/vmlinuz-art	+	== Control panel installation==
−	3) edit /etc/lilo.conf to add a section for the art kernel. Eg:	+	=== Plesk ===
−	image=/boot/vmlinuz-art	+	=== Step 1:  Read the Notes ===
−	label=lxart	+
−	append="console=tty0 console=ttyS0,57600 panic=30"	+
−	4) Type: lilo to make the change permanent. Then to test that you can boot into the new kernel do	+	Confirm that your system meets the ASL requirements, which are documented on the [[ASL prerequisites]] page.
−	lilo -v -v	+
−	lilo -R lxart	+
−	shutdown -r now	+
−	5) When it's rebooted, doing a uname -r should show the new art kernel. Now you can make it permanent. Edit /etc/lilo.conf so that it has the line:	+	Note:  ASL will harden your system, so when building a new system or installing other software, we recommend you install ASL last so that it can harden your system with all software installed.
−	default=lxart	+
−	6) type lilo. Then reboot.	+	=== Step 2: Install ASL from Plesk ===
		+	To install Atomic Secured Linux using the Plesk extension:
−	== '''manual installation''' (Not Recommended or Supported) ==	+	Step 1:  In the Extensions Catalog, select the 'Security' category and click on 'Atomic Secured Linux'
−	'''This method of installation is not supported.'''  If the automated installer is not working for your system please notify our support team and we will be happy to fix the issue for you.	+	Step 2:  Click the 'Install' button to install the extension
−	1) vim /etc/yum.repos.d/asl.repo	+	Step 3:  After the extension is installed, click the 'Go To Extension' link
−	2) add the following:	+	Step 4: Click the 'Install' button to install Atomic Secured Linux
−	[asl-2.0]	+	== Step 4: Post-Installation Quickstart/Configuration ==
−	name=ASL 2.0	+
−	baseurl=http://USERNAME:PASSWORD@atomicorp.com/channels/asl-2.0/DISTRO/$releasever/$basearch	+
−	3) replace DISTRO with fedora, centos, redhat, and USERNAME/PASSWORD with your username and password from the signup page	+	=== Log into the GUI ===
−	4) yum install asl	+	https://YOUR_SERVERS_IP:30000
−	5) asl -c	+	You can view alerts, block attackers, configure ASL and use its many features from the GUI.
−	== Special Installation: Ensim ==	+	The username and password are the same credentials you created when you purchased your license.  You can change the ASL control panel credentials by following the process [https://www.atomicorp.com/wiki/index.php/ASL_FAQ#How_can_I_reset_my_ASL_GUI_password.28s.29.3F here], and you can add additional users by following [https://www.atomicorp.com/wiki/index.php/ASL_FAQ#How_can_I_create_new_accounts_in_the_ASL_GUI_.3F this process].
−	If you get the following error message:	+	=== Log into the support portal ===
−	Error: Missing Dependency: libclamav.so.2 is needed by package perl-Mail-ClamAV	+	Finally, we highly recommend you click on the "Support" tab in the ASL GUI, or go to this URL to log into your support account:
−	Grab the latest update of perl-Mail-ClamAV from Dag's RPMforge archive:	+	https://www.atomicorp.com/support/support-portal.html
−	http://dag.wieers.com/rpm/packages/perl-Mail-ClamAV/	+	The support system uses the same username and password used to install ASL (your ASL username and password). Please make sure you can log into the support portal to make use of the support portals features such as case management, bug tracking and the knowledge base.
−	Upgrade with rpm -Uvh perl-Mail-ClamAV-0.21-*rpm --nodeps	+	=== ASL FAQ ===
−	Re-run the ASL installer.	+	And also, please read thru the [[ASL FAQ]].  It covers just about everything anyone has every asked us about, regarding ASL.  Seriously, its got answers to nearly anything you might want to know about [[ASL]], and we really have documented the answer to nearly every question anyone has every asked us about ASL.
−	== ASL addon - Atomic Scanner ==	+	== Command Line ==
−	To install the ASL antispam scanner, just run this command as root:	+	If you're a command line person you can also run or re-run many of ASL's features from the command line.  Here are a few highlights:
−	yum --enablerepo=asl-2.0-testing install atomic-scanner	+	1) Configure/Re-Configure ASL
−	== Atomic Addon - Yum GUI ==	+	asl -c
−	This is an unsupported tool released to the ASL community.  It is not part of ASL.  If you run into bugs with it, please report them, however the tool is not supported as part of an ASL subscription.	+	2) Scan the system for vulnerabilities, malware and other security issues.
−	To install, just run this command as root:	+	asl -s
−	yum --enablerepo=asl-2.0-testing install atomic-yum	+	3) Scan the system for vulnerabilities, malware and other security issues and have ASL fix the system.
−	== ASL Troubleshooting ==	+	asl -s -f
−	Please see the [[ASL Troubleshooting]] article.	+	You can also find out about all the command line options in asl by running this command:
−	We also recommend you read the [[ASL FAQ]].	+	asl -h
−	=== SELinux ===	+	= Upgrading ASL =
−	SELinux policies have been known to interfere with RPM updates. This is because SELinux policies are not always adjusted for modern platforms.  This can manifest itself in mysterious failures in %pre and %post macros (confirmed on RHEL4).	+	Please see the [[Upgrading ASL]] page for details.
−	ASL includes an advanced RBAC system that is more powerful and easier to use than SELinux and we recommend you use that instead of SELinux.  However, if you wish to use SELinux ASL will work fine with SELinux, however you may need to adjust your SELinux policies for your systems specific needs.	+	= Troubleshooting =
−	If you encounter any issues with rpm installations on your system, and you are not qualified to adjust your SELinux policies that came with your operating system, we recommend you disable SELinux and use the built in RBAC in ASL.	+	Please see the [[ASL Troubleshooting]] article.
−	To disable SELinux set:	+	We also recommend you read the [[ASL FAQ]].
−		+
−	selinux=0	+
−		+
−	in the kernel boot parameters for your system.	+
−		+
−	setenable 0, setenforce 0 and disabling SELinux with sysctl are not effective.  To disable selinux you must boot with selinux=0 set for your system.	+
−		+
−	=== Known Kernel Module Name Changes ===	+
−		+
−	1and1 network card module name changes	+
−	Vmware SCSI emulation name changes
		+	= Important Notes =
−	'''1and1 Checklist for /etc/modules.conf or /etc/modprobe.conf'''	+	== Kernel ==
−	Step 1) Enumerate hardware with /sbin/lspci	+	See the [[Kernel]] page for additional information on the ASL kernel.
−	Step 2) Check network cards,	+	== Cpanel ==
−	Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] was	+	Do not enable modsecurity in cpanel, and do not use cpanel to upgrade or install modsecurity.  CPanel does not use the latest version of modsecurity, and ASL is only tested and supported with the latest version supplied by ASL.  ASL will automatically upgrade modsecurity if necessary.
−	alias eth0 8139too	+
−	change to	+
−	alias eth0 via-rhine	+
−	Step 3) Check SATA modules	+	Enabling modsecurity in cpanel will replace modsecurity with an older, and incompatible version and is not supported.  This will likely also break your modsecurity configuration, as CPanel does not include all of the patches and enhancements in modsecurity that ASL comes with.
−	<PENDING>	+

---

Latest revision as of 12:22, 27 June 2024

Contents 1 Introduction 1.1 Before You Start 1.2 Prerequisites 2 Installation and Downloads 2.1 Command Line installation 2.1.1 Step 1: Read the Notes 2.1.2 Step 2: Run the Automated ASL installer 2.1.3 Step 3: (Optional) If you have installed the ASL kernel 2.1.3.1 VPS based systems 2.1.3.2 Cloud Linux 2.1.4 Before you reboot 2.1.4.1 Check to make sure you can log in 2.1.4.2 Cloud Linux 2.2 Control panel installation 2.2.1 Plesk 2.2.2 Step 1: Read the Notes 2.2.3 Step 2: Install ASL from Plesk 2.3 Step 4: Post-Installation Quickstart/Configuration 2.3.1 Log into the GUI 2.3.2 Log into the support portal 2.3.3 ASL FAQ 2.4 Command Line 3 Upgrading ASL 4 Troubleshooting 5 Important Notes 5.1 Kernel 5.2 Cpanel

[edit] Introduction

ASL is designed to integrate with your existing operating system. Customized environments that deviate from OS vendor designed standards, and packaging should consult with our services group for a custom solution.

[edit] Before You Start

Please note: If you purchased a Rules Only subscription, please go to, and follow the instructions here: https://www.atomicorp.com/wiki/index.php/Atomic_ModSecurity_Rules#Optional_Manual_Installation . These are instructions to install ASL.

If you purchased Atomic Secured Linux, then continue to the steps below.

[edit] Prerequisites

Please ensure that your system meets all prerequisites before installing ASL. The ASL prerequisites page includeds important information outlining the systems requirements for ASL to install and function correctly, as well as recommendations for it to perform optimally.

[edit] Installation and Downloads

[edit] Command Line installation

[edit] Step 1: Read the Notes

Confirm that your system meets the ASL requirements, which are documented on the ASL prerequisites page.

Note: ASL will harden your system, so when building a new system or installing other software, we recommend you install ASL last so that it can harden your system with all software installed.

[edit] Step 2: Run the Automated ASL installer

Pre Step 1)

If the system does not have mysql or mariadb installed, run these commands as root:

RHEL/Centos 6:

yum install mysql-server

service mysqld start

systemctl enable mysqld

RHEL/Centos 7:

yum install mariadb-server

service mariadb start

systemctl enable mariadb

Step A)

Become root on your system. To become root run this command:

su -

then enter your root password.

Step B)

Cut and paste the command below, and run this command as root:

wget -q -O - https://updates.atomicorp.com/installers/asl |sh

Follow the instructions in the installer being sure to answer the configuration questions appropriately for your system.

Note: You must have a version of wget installed that supports HTTPS to install ASL, as described on the ASL prerequisites page.

If you do not get any output from the installation command it is likely wget on your system was replaced with a crippled version that does not support SSL. Please see this article to test if your wget supports SSL if you are unsure:

https://www.atomicorp.com/wiki/index.php/ASL_prerequisites#wget

See the unattended installs article for advanced instructions for unattended installations.

[edit] Step 3: (Optional) If you have installed the ASL kernel

Once the installation is complete, if you want to use the secure ASL kernel you will need to reboot your system to boot into the new hardened kernel that comes with ASL. You do not have to use this kernel to enjoy the other features of ASL, but we recommend you use the hardened kernel as it includes many additional security features that are not found in non-ASL kernels.

Note: The secure ASL kernel is not required to run ASL, but it will make your system more secure and protect your system from attacks that your regular kernel can not.

[edit] VPS based systems

If you are using a VPS based virtualization technology, like openvz or Virtuzzo, you can not install any kernel in a VPS. VPS' do not have a kernel, they share the host systems kernel. Therefore, you will not be able to install any kernel in a VPS, including the ASL secure kernel, and do not need to reboot.

[edit] Cloud Linux

Cloudlinux requires that you use their default kernel with their product. Therefore, you should not use the secure ASL kernel with Cloud Linux. Please see the link below to ensure you have your system configured to use the appropriate Cloud Linux kernel with their product.

https://www.atomicorp.com/wiki/index.php/Kernel#Setting_which_kernel_to_boot

Note: When using the Cloud Linux kernel ASL will report security vulnerabilities in the Cloud Linux kernel. These security vulnerabilities are real. The Cloud Linux kernel does not include the necessary security enhancements to protect you from these vulnerabilities. Please direct any questions regarding Cloud Linux vulnerabilities to Cloud Linux support.

[edit] Before you reboot

[edit] Check to make sure you can log in

Check to make sure you haven't locked yourself out of your system. If you told ASL to lock down SSH, make sure you can log into your system. Don't close out your current session, log in with a new session. This way you can confirm that you haven't installed bad ssh keys, or otherwise configured your server so you can't log in.

If you are rebooting into the secure ASL kernel, make sure you have an alternative means to log into your system should your system encounter an issue rebooting. For example, a diverse means such as serial port access, or a KVM system, and not SSH or other direct network based remote access. If a Linux system fails to reboot, network based protocols like SSH will not work.

[edit] Cloud Linux

Cloudlinux requires that you use their default kernel with their product. Therefore, you should not use the secure ASL kernel with Cloud Linux. Please see the link below to ensure you have your system configured to use the appropriate Cloud Linux kernel with their product.

https://www.atomicorp.com/wiki/index.php/Kernel#Setting_which_kernel_to_boot

Note: When using the Cloud Linux kernel ASL will report security vulnerabilities in the Cloud Linux kernel. These security vulnerabilities are real. The Cloud Linux kernel does not include the necessary security enhancements to protect you from these vulnerabilities. Please direct any questions regarding Cloud Linux vulnerabilities to Cloud Linux support.

[edit] Control panel installation

[edit] Plesk

[edit] Step 1: Read the Notes

Confirm that your system meets the ASL requirements, which are documented on the ASL prerequisites page.

Note: ASL will harden your system, so when building a new system or installing other software, we recommend you install ASL last so that it can harden your system with all software installed.

[edit] Step 2: Install ASL from Plesk

To install Atomic Secured Linux using the Plesk extension:

Step 1: In the Extensions Catalog, select the 'Security' category and click on 'Atomic Secured Linux'

Step 2: Click the 'Install' button to install the extension

Step 3: After the extension is installed, click the 'Go To Extension' link

Step 4: Click the 'Install' button to install Atomic Secured Linux

[edit] Step 4: Post-Installation Quickstart/Configuration

[edit] Log into the GUI

https://YOUR_SERVERS_IP:30000

You can view alerts, block attackers, configure ASL and use its many features from the GUI.

The username and password are the same credentials you created when you purchased your license. You can change the ASL control panel credentials by following the process here, and you can add additional users by following this process.

[edit] Log into the support portal

Finally, we highly recommend you click on the "Support" tab in the ASL GUI, or go to this URL to log into your support account:

https://www.atomicorp.com/support/support-portal.html

The support system uses the same username and password used to install ASL (your ASL username and password). Please make sure you can log into the support portal to make use of the support portals features such as case management, bug tracking and the knowledge base.

[edit] ASL FAQ

And also, please read thru the ASL FAQ. It covers just about everything anyone has every asked us about, regarding ASL. Seriously, its got answers to nearly anything you might want to know about ASL, and we really have documented the answer to nearly every question anyone has every asked us about ASL.

[edit] Command Line

If you're a command line person you can also run or re-run many of ASL's features from the command line. Here are a few highlights:

1) Configure/Re-Configure ASL

 asl -c

2) Scan the system for vulnerabilities, malware and other security issues.

 asl -s

3) Scan the system for vulnerabilities, malware and other security issues and have ASL fix the system.

 asl -s -f

You can also find out about all the command line options in asl by running this command:

 asl -h

[edit] Upgrading ASL

Please see the Upgrading ASL page for details.

[edit] Troubleshooting

Please see the ASL Troubleshooting article.

We also recommend you read the ASL FAQ.

[edit] Important Notes

[edit] Kernel

See the Kernel page for additional information on the ASL kernel.

[edit] Cpanel

Do not enable modsecurity in cpanel, and do not use cpanel to upgrade or install modsecurity. CPanel does not use the latest version of modsecurity, and ASL is only tested and supported with the latest version supplied by ASL. ASL will automatically upgrade modsecurity if necessary.

Enabling modsecurity in cpanel will replace modsecurity with an older, and incompatible version and is not supported. This will likely also break your modsecurity configuration, as CPanel does not include all of the patches and enhancements in modsecurity that ASL comes with.