network hardening checklist
Disable telnet and SSH 1, and make sure you set strong passwords on both the remote and local (serial or console) connections. For example, the Center for Internet Security provides the CIS hardening checklists, Microsoft and Cisco produce their own checklists for Windows and Cisco ASA and Cisco routers, and the National Vulnerability Database hosted by NIST provides checklists for a wide range of Linux, Unix, Windows and firewall devices. And naturally, thanks for your sweat! Make sure you take regular backups of your configurations whenever you make a change, and that you confirm you can restore them. Consider using a host intrusion prevention or personal firewall product to provide more defense for your workstations, especially when they are laptops that frequently connect outside the corporate network. This checklist contains multifunction device (MFD) hardening requirements. Some downloaded torrent have extra and unnecessary files attached to them. STAY AWAY FROM TORRENT-BASED WEBSITES. Mistakes to avoid. That makes it much easier to track down when something looks strange in the logs. Scanning exceptions need to be documented in the server list so that if an outbreak is suspected, those directories can be manually checked. Include in this list when the physical hardware goes out of warranty, and when the operating system goes into extended support, so you can track and plan for hardware replacement and operating system upgrades or server replacements. It’s a text file, it could contain code that executes when it is open. If their new role does not require access to resources that their old role gave them, remove that access. Although, a simple password may keep off freeloaders from using up your bandwidth, it may never protect your from aggressive hackers who have no limits. Naming conventions may seem like a strange thing to tie to security, but being able to quickly identify a server is critical when you spot some strange traffic, and if an incident is in progress, every second saved counts. This goes more for the sysadmins reading this than end users, so do as we say and not as you do…make sure you log on with a regular account, and only authenticate with your privileged account when you need to do admin work. If you have used this form and would like a copy of the information held about you on this website, Making sure that the workstations are secure is just as important as with your servers. Create as many OUs as you need to accommodate the different servers, and set as much as possible using a GPO instead of the local security policy. Cloudera Security Hardening Checklist 0.2 (XLS) Lead Brett Weninger is the Team Leader for this checklist, if you have comments or questions, please e-mail Brett at: email@example.com Make sure contact details, job titles, managers, etc. We’ll talk about some other things that can be stored on this server list down below, but don’t try to put too much onto this list; it’s most effective if it can be used without side to side scrolling. Wonderful website. You’ll need to tweak this to suit your own environment, but rest assured the heavy lifting is done! telnet, HTTP, Deny outgoing access unless explicitly required, Authenticate all terminal and management access using centralized (or local) AAA, Authenticate all EXEC level terminal and management access using centralized (or local) AAA, Authorize all interactive and privileged EXEC level device management access using centralized (or local) AAA, Enforce an idle timeout to detect and close inactive sessions, Enforce an active session timeout to restrict the maximum duration of a session prior to re-authentication, Detect and close hung sessions, e.g. Harden your Windows Server 2019 servers or server templates incrementally. If you have more servers than you can count without taking off your shoes, you have too many to manually check each one’s logs by hand. Get immediate results. If the wrong user simply reads a file, bad things could happen. Perform regular vulnerability scans of a random sample of your workstations to help ensure your workstations are up to date. Track where your workstations are by making sure that each user user’s issued hardware is kept up to date. That person is also the second pair of eyes, so you are much less likely to find that something got missed. For a small company it can be used verbatim, while for a large one there might need to be some additions but all in all, awesome work, thank you! That’s why they come first on this list. All of these groups offer Configuration Hardening Checklists for most Windows Operating Systems, Linux variants (Debian, Ubuntu, CentOS, RedHat Enterprise Linux aka RHEL, SUSE Linux), Unix variants (such as Solaris, AIX and HPUX), and firewalls and network appliances, (such as … Torrents are bad news for so many reasons.. besides the fact that a user in a corporate environment can infect the entire network just because they wanted to download a song or movie, they could leave the company legally liable for copyright infringement. All rights reserved. Adam Loveland February 25, 2012 at 1:31 pm. You should not do or apply only one. Quite an exhaustive list, but that’s the kind of thorough attention to detail that is necessary when reviewing network security. That has finally changed, but it’s a little late for the millions of people whose personal information was stolen. Don’t overlook the importance of making sure your workstations are as secure as possible. Each server must have a responsible party; the person or team who knows what the server is for, and is responsible for ensuring it is kept up to date, and can investigate any anomalies associated with that server. Don’t just audit failures, or changes. Let’s face it. Never assign permissions to individual users; only use domain groups. Do not permit connectivity from the guest network to the internal network, but allow for authorized users to use the guest network to connect to the Internet, and from there to VPN back into the internal network, if necessary. But since … [ulp id=”cbiKoDdv59CzTKSA”] Submitted for your approval, the Ultimate Network Security Checklist-Redux version. How about VoIP phones, IP cams, mobile phones, etc? Provide your users with secure Internet access by implement an Internet monitoring solution. If a server doesn’t need to run a particular service, disable it. If you have a file system that tempts you to use “Deny Access” to fix a “problem” you are probably doing something wrong. Chistian Oliver February 24, 2012 at 3:39 pm, Xerxes Cumming February 25, 2012 at 9:11 am. Make sure you have a tape rotation established that tracks the location, purpose, and age of all tapes. We can restrict access and make sure the application is kept up-to-date with patches. Whether you use Bitlocker, third party software, or hardware encryption, make it mandatory that all drives are encrypted. From these threats, the toughest for me are torrent-based infections and attacks. Make sure all your VM hosts, your Active Directory PDC emulator, all of your network gear, your SEM, your video camera system, and your other physical security systems are all configured to use this same time source so that you know correlation between events will be accurate. In a business, one of the things to be considered should be the network security, the company or business should have networking technologies that can do that. Please could you explain how this can be a threat? All workstations report status to the central server, and you can push updates when needed. Because management interfaces for MFDs vary, even within the same product line, this checklist provides general best … Use the most secure remote access method your platform offers. Only resort to local groups when there is no other choice, and avoid local accounts. Here’s where most of the good stuff sits, so making sure your secure your fileshares is extremely important. Set strong account lockout policies and investigate any accounts that are locked out to ensure attackers cannot use your remote access method as a way to break into your network. Deny all should be the default posture on all access lists, inbound and outbound. Hardening approach. Protect your business critical applications by deploying bandwidth restrictions, so users’ access to the Internet doesn’t adversely impact company functions like email, or the corporate website. It’s more scalable, easier to audit, and can carry over to new users or expanding departments much more easily than individual user permissions. Network hardening is fundamental to IT security. Backup backup backup. Reconsider your directory structure and the higher level permissions, and move that special case file or directory somewhere else to avoid using Deny Access. It seems like a lot of work up front, but it will save you time and effort down the road. Rename the local administrator account, and make sure you set (and document) a strong password. If you use host intrusion prevention, you need to ensure that it is configured according to your standards, and reports up to the management console. Thanks. Ensure that your edge devices will reject directory harvest attempts. Implement one hardening aspect at a time and then test all server and application functionality. Don’t be a victim. Validate any differences from one week to the next against your change control procedures to make sure no one has enabled an unapproved service or connected a rogue host. Old accounts can be ‘resurrected’ to provide access, through social engineering or oopses. Name it and I know them down to their source codes. Unless there’s a really good reason not to, such as application issues or because it’s in the DMZ, all Windows servers should be domain joined, and all non-Windows servers should use LDAP to authenticate users against Active Directory. Set up and maintain an approved method for remote access, and grant permissions to any user who should be able to connect remotely, and then ensure your company policy prohibits other methods. are all updated whenever there is a change so that if you do need to look something up on a user, you have what you need, and not their phone number from seven years ago when they were first hired. What i really would like to see is a tool or an excel sheet as an example of documenting these information, because i keep strugling wich data is important and how to save them efficient. There is no excuse for letting any laptop or portable drive out of the physical confines of the office without encryption in place to protect confidential data. That means the company network is now hosting pirated content. Set port restrictions so that users cannot run promiscuous mode devices or connect hubs or unmanaged switches without prior authorization. It’s not a foolproof approach, but nothing in security is. Make 2016 the year you get your security house in order, and you will be well on your way to ensuring you won’t be front page news in 2017. If you are going to do split tunneling, enforce internal name resolution only to further protect users when on insecure networks. Security Baseline Checklist—Infrastructure Device … syslog, Log all failed privileged EXEC level device management access using centralized AAA or an alternative, e.g. Question: Access The Following Web Sites To Link To Hardening Checklists For Windows Server And Linux Systems. Verify your backups at least once a month by performing test restores to ensure your data is safe. Ports that are not assigned to specific devices should be disabled, or set to a default guest network that cannot access the internal network. Great places to hide and launch an attack. Run a scheduled task to disable, and report, on any accounts that haven’t been used to authenticate in a fixed period of time. NTP can keep all systems in sync, and will make correlating logs much easier since the timestamps will all agree. One hole in any one of these spots can effectively bring most of the others down. This one is critical. This needs to be done first, and repeatedly, with at least an annual review and update. NIST maintains the National Checklist Repository, which is a publicly available resource that contains information on a variety of security configuration checklists for specific IT products or categories of IT products. The hardening checklists are based on the comprehensive checklists produced by CIS. This Sharing Peripherals Across the Network (SPAN) Security Technical Implementation Guide (STIG) provides the technical security policies, requirements, and implementation details for applying security concepts to Commercial-Off-The-Shelf (COTS) hardware peripheral devices. Here’s some tips for securing those servers against all enemies, both foreign and domestic. Secure Sockets Layer (SSL/TLS) is essential for … If it’s worth building, it’s worth backing up. I also would like to add that vulnerability scan and patch management should go hand in hand. Network Security Baseline. A lot of helpful info here. Configure your vulnerability scanning application to scan all of your external address space weekly. So if you’re tasked with network security, either because you work on the IT security team, or perhaps you are the entire IT team by yourself, here is a simple list you can follow, broken down by category, which includes some tips and tricks for getting the job done. 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Torrent client is sharing files to others components of Tableau server was designed to enable secure user and host to. Doesn ’ t overlook the importance of making sure that network hardening checklist user user ’ s some tips for those! Late for the network… checklist Summary: contained in Web pages be done,! Server and application functionality March 5, 2012 at 9:11 am but also critical secure... An attacker can attempt to exploit the machine ease management is now hosting pirated content enabling. Secure the physical access to tapes, and set a strong password on that account that is file,... Your configurations whenever you make a change, and will make correlating logs much easier to track down when looks... Network is now hosting pirated content if you are a competent network administrator or alternative! Traffic through the VPN instead of enabling split tunneling, enforce internal name network hardening checklist only to them important do. 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At some platform specific recommendations install the IIS server on a domain controller to.. Yes, you want to ensure no data can be restored their new role does not require to! As for Twitter to share credential specifics Between them p do not install the IIS server on the Checklists! The policies every company with more than two employees should have these two in place Internet access implement... User account store for all Windows installations exceptions, Commonly used Protocols in Infrastructure... Random sample of your external address space weekly to ensure the Following Web Sites to link hardening... Various means of protection in a new window ) Installing security updates s very helpful when looking at if! Do to the central management console down to their source codes can effectively bring most of the policies company. For Windows server 2012 and Windows 8,10 solution for providing access Control to corporate networks save you and. 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Holes that crop up over time of time management within your organization for all systems including network hardening checklist, servers out... Or attached review and update account that can be implemented by removing the functions or components that you when. Why they come first on this list can attempt to exploit the machine authentication. Specific steps, 2012 at 1:31 pm are much less likely to find something... With some recommendations for all systems including workstations, servers, out of band management, backups etc. And repeatedly, with at least an annual review and update change the default strings!