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  1. I had some issues configuring Active Directory integration (Kerberos etc.) with ESMC so I decided to do a write-up on what I did to get it working. This is for Ubuntu Server 18.04 but it should be applicable to other Debian based distros, adjust where required. Let's assume we have the following environment: ESMC Linux Distribution: Ubuntu Server 18.04 ESMC Hostname: esmc ESMC FQDN: esmc.test.local ESMC IP Address: Active Directory Domain: test.local NetBIOS Domain: TEST Domain Controller: dc.test.local ( ESET ESMC AD User Account: eset.esmc@test.local (eset.esmc) Ensure the required Server prerequisites (v7.2) are installed. sudo apt-get install krb5-user ldap-utils libsasl2-modules-gssapi-mit samba Configure Samba at /etc/samba/smb.conf Ensure you change workgroup to the NetBIOS Domain, netbios name to the ESMC Hostname and realm to the Active Directory Domain. The following configuration is based on one found in ESMC VA v7.2 [global] workgroup = TEST netbios name = esmc server string = Samba Server Version %v security = ads realm = test.local domain master = no local master = no preferred master = no socket options = TCP_NODELAY IPTOS_LOWDELAY SO_RCVBUF=131072 SO_SNDBUF=131072 use sendfile = true idmap config * : backend = tdb idmap config * : range = 100000-299999 idmap config TEST : backend = rid idmap config TEST : range = 10000-99999 winbind separator = + winbind enum users = yes winbind enum groups = yes winbind use default domain = yes winbind nested groups = yes winbind refresh tickets = yes template homedir = /home/%D/%U template shell = /bin/bash client max protocol = SMB3 client use spnego = yes client ntlmv2 auth = yes encrypt passwords = yes restrict anonymous = 2 log file = /var/log/samba/log.%m max log size = 50 load printers = no printing = bsd printcap name = /dev/null disable spoolss = yes client ipc signing = auto Configure Kerberos at /etc/krb5.conf Ensure you change default_realm to Active Directory Domain (Must be capitalised) and the realm definition Active Directory Domain (Must be capitalised). Ensure you specify your Domain Controller as a kdc under the realm definition for your Active Directory Domain, if you have multiple Domain Controllers, specify multiple kdc's. Ensure you map Active Directory Domain (prefixed with ".") to the realm name (Your Active Directory Domain but capitalised) under domain_realm. The following configuration is based on one found in ESMC VA v7.2 [libdefaults] default_realm = TEST.LOCAL ticket_lifetime = 24h forwardable = true [realms] TEST.LOCAL = { kdc = dc.test.local } [domain_realm] .test.local = TEST.LOCAL Configure DNS Resolution. systemd-resolved can cause issues with Kerberos, it can probably be worked around but disabling it as follows also works. sudo systemctl disable systemd-resolved.service sudo systemctl stop systemd-resolved Configure /etc/resolv.conf Specify your Domain Controller as a nameserver, create additional nameserver definitions for each Domain Controller. Specify Active Directory Domain for search nameserver search test.local Ensure Hostname is set correctly If you need to change your hostname, you can use: sudo hostnamectl set-hostname esmc.test.local Configure /etc/hosts Add your ESMC and your Domain Controllers to the hosts file. Take note of the ordering of FQDN and aliases after the IP Address as net join will use the first defined alias for your host as SPNs etc. when joining the system to the domain. All values are tab separated. localhost esmc.test.local esmc dc.test.local dc Configure Time Synchronisation By default, the maximum tolerance for computer clock synchronization for Active Directory Kerberos participants is 5 minutes from a Kerberos Key Distribution Center (KDC; in our case, the Domain Controller) to operate correctly. If ESMC is in a VM, you may already be using a Hypervisor with some VM Agent that handles this but, if not, then systemd-timesyncd should suffice or you can use ntpd. Let's assume you use systemd-timesyncd: Configure /etc/systemd/timesyncd.conf NTP Server addresses are separated by spaces. specify each of your Domain Controllers [Time] NTP= Ensure systemd-timesyncd is set to sync and force it to resync. You should see a log entry that it "Sychronized to time server" as per your configuration. sudo timedatectl set-ntp on sudo timedatectl status sudo systemctl restart systemd-timesyncd.service systemctl status systemd-timesyncd.service Join System to Domain If you have Webmin you can use Rejoin Domain (VA v7.2) but it more or less just runs the following command (Replace Administrator with an authorised AD User that can join systems to the domain): sudo net join ads join -U Administrator This relies on a correctly configured /etc/smb.conf You will probably want to move the resulting Computer object this creates in your domain from the default Computers OU to a more relevant OU given your OU hierarchy design in your domain. Setup Mapped Domain Security Groups under Access Rights in ESMC Configure Active Directory under Advanced Settings in Server Settings (v7.2) Map Domain Security Groups and assign Permission Setting Map Domain Security Group users (v7.2) Setup a Static Group Synchronization Server Task in ESMC Synchronization mode - Active Directory / Open Directory / LDAP (v7.2) Setup a User Synchronization Server Task in ESMC User Synchronization (v7.2) Troubleshooting The following can be used to test Kerberos login and LDAP GSSAPI whilst showing debug information, useful for troubleshooting. It destroys and existing Kerberos tickets for your user, obtains a Kerberos ticket for the specified AD user, lists obtained Kerberos tickets then performs LDAP Search by authenticating with GSSAPI. When troubleshooting Kerberos, you should always check the system time with the relevant Domain Controller (KDC) to ensure they are within 5 minutes of each other (by default). Replace eset.esmc with the AD User Account that ESET ESMC will connect under. Replace dc.test.local with your Domain Controller. Replace DC=test,DC=local with the Distinguished Name (DN) of the Base OU in your Domain where you want to list all child Computer objects of. kdestroy KRB5_TRACE=/dev/stdout kinit eset.esmc klist -f KRB5_TRACE=/dev/stdout ldapsearch -LLL -Y GSSAPI -h dc.test.local -b 'DC=test,DC=local' '(&(objectCategory=computer))' 'distinguishedName' 'dNSHostName' @tomasS @Peter Randziak
  2. I keep getting false positives regarding "Potential computer cloning or hardware change detected" from certain I.T. staff computers (7.2). I'm assuming it's because the calculated hardware fingerprint is changing but without knowing how that's calculated I don't know what's causing it. Is it a safe assumption that all (excluding perhaps Displays and IP addresses?) information on the Details > Hardware section is used to calculate the hardware fingerprint? It should go without saying that the hardware on affected systems isn't changing nor are any systems cloned.
  3. Hello all, I would like to ask something about the latest ESMC. I have an ESMC on Ubuntu 16.04 hosts running ESMC 7.0 and i want to upgrade it to the latest version. I started the upgrade procedure from the ESMC WebConsole and running the ESMC Component Upgrade task, but it took me over 3 days and the task is still running and without any error message on the log. So i just stopped the upgrade procedure and run the upgrade proccess manually. I backed up the database dan stop the eraserver services. Then executed the esmc installer script to install the new version of ESMC. The script executed successfully without any error, and the ESMC is already installed without error. But i cannot start the eraserver service, and the systemd services status only give me hint that eraserver PID not found, and then i go over to the /var/log/eset/RemoteAdministrator/Server/trace.log to check the log, and i got this error of (mysqld-5.7.27) Unknown table 'era_db.fact_fe_threat_event' I did performed the upgrade procedure a few more time, but still got the same results and I cannot start the eraserver services. Thx in advice for any help guys, and Pardon me for my bad english...
  4. Hello. I have ESMC v7.2.1266.0 running with Microsoft SQL Server 2017 (RT Express Edition (64-bit) v14.0.2027.2. I'm doing some maintenance in our environment and I see that SQL Server 2017 CU21 was released on 7/1/2020. The version I'm running (v14.0.2027.2) was released 7/9/2019. My question is am I able to upgrade our SQL to CU21 without causing any major issues with ESET? I believe it should be okay, but I wanted to see if anyone else has upgraded their DB or if the version of ESMC has be using SQL v14.0.2027.2. Thanks! https://support.microsoft.com/en-us/help/4047329 https://support.microsoft.com/en-us/help/4557397/cumulative-update-21-for-sql-server-2017
  5. Good Morning guys. We're planning to upgrade from ERA Server 6.1 to ESMC 7 soon. I'm having some doubts about it, if someone elucidate these questions I would be thankful. 1- The old 6.5.522 Agent installed on my clients will be compatible with the new server (ESMC 7) if I migrate the DataBase correctly from the old Server? Or I will have to upgrade all agents from my network to the latest version (7.1) before migrate my server? Since if It's not compatible i won't be able to send a command to update the agent, and I will have to do this manually, right? 2- I already read about this and says it compatible, but I'm not sure. The ERA products license is compatible with the ESMC products? Thanks in advance.
  6. Hi. We are going to make the migration from eset remote administrator to eset cloud administrator. I have some doubts. 1. Can an all-in-one installer be generated from eca but be offline? that is, do not make an Internet request during the process? since there are 240 teams and they are going to consume a lot of bandwidth 2. Can I install 2 http proxies in 2 different branches for downloading updates? I appreciate your help
  7. Following a database issue with ERA v6 I've had to setup a new ESMC v7 VA server in HyperV. The server has been successfully joined to the domain and I've created a User Sync task with a valid AD account to sync my AD details with ESMC. Running the task I am getting my user accounts sync with ESMC but the OU's that they are situated in are not pulling across, if I look at Computer Users within ESMC I just get a folder icon and no name next to it. A separate task to sync my computers objects and their OU's is working fine using the same credentials. The User Sync task was setup in a similar way to v6 which works fine, so I'm not sure why it's not working as I expect on v7? Any help appreciated.
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