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Setup of SNMP v3 DTLS/TLS snmptrapd informs and snmpd trapsess in CentOS/RHEL 7 Linux - net-snmp
 
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this tutorial video succeeds my howto on snmpd setup in TLS/DTLS mode. There is the link: https://youtu.be/BTEFwYbGJ-8 In CentOS/RHEL 7 Linux we're going to setup SNMP v3 snmptrapd to accept secure TLS/DTLS informs and traps. We will also modify snmpd to generate trapsess using TLS/DTLS. List of used commands: ____________ 1) Where are we? cat /etc/centos-release 2) List installed net-snmp RPMs rpm -qa | grep net-snmp 3) Show available TLS certificates net-snmp-cert showcerts --fingerprint 4) On the manager, open /etc/snmp/snmptrapd.conf vim /etc/snmp/snmptrapd.conf 5) Add there following lines. We will have to insert real SHA1 fingerprints as retrieved in step 3 [snmp] localCert {manager certificate} certSecName 20 {agent certificate} --sn trapuser authUser log -s tsm trapuser 6) On the manager open /etc/sysconfig/snmptrapd vim /etc/sysconfig/snmptrapd 7) Add there following lines. We have to enable snmptrapd to listen on TLS/DTLS ports. Replace hostnames with your real. OPTIONS="-Lsd -p /var/run/snmptrapd.pid 127.0.0.1:162 {hostname}:162 dtlsudp:127.0.0.1:10162 tlstcp:127.0.0.1:10162 dtlsudp:{hostname}:10162 tlstcp:{hostname}:10162 -m ALL -M /opt/share/snmp/mibs:/usr/share/snmp/mibs" 8) On the manager enable snmptrapd and start it systemctl enable snmptrapd systemctl start snmptrapd 9) On the manager, monitor /var/log/messages for new SNMP messages tail -f /var/log/messages 10) On the agent generate inform message from commandline. First to DTLS port snmpinform -v 3 -u trapuser -T our_identity={agent certificate} \ -T their_identity={manager certificate} dtlsudp:{hostname}:10162 42 coldStart.0 It works! Message appeared in the log on the manager node. 11) Now the same with TLS port. snmpinform -v 3 -u trapuser -T our_identity={agent certificate} \ -T their_identity={manager certificate} tlstcp:{hostname}:10162 Works again! Message arrived too. 12) Informs works. Now the second part - trapsess - informs generated by snmpd. 13) On the agent open the /etc/snmp/snmpd.conf vim /etc/snmp/snmpd.conf 14) Add trapsess DTLS definition trapsess -T our_identity={agent certificate} -T their_identity={manager certificate} dtlsudp:{hostname}:10162 16) Restart snmpd. Start/stop of snmpd generates trap as well. Watch /var/log/messages systemctl restart snmpd
Views: 1251 Jaroslav Kucera
NET-SNMP installation and configuration on Linux
 
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Snmp configuration on Redhat and CentOS servers my blog is http://www.ibrahimquraishi.com
Views: 49830 Ibrahim Quraishi
Quick setup of SNMP v3 USM access on CentOS/RHEL 7 Linux - net-snmp
 
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The video gives basic overview how to setup SNMP v3 USM access including saved configuration in snmp.conf. There are commands used in the video: 1) Where are we? cat /etc/centos-release 2) Install net-snmp RPMs yum install net-snmp net-snmp-libs net-snmp-utils \ net-snmp-agent-libs 3) Open /etc/snmp/snmpd.conf vim /etc/snmp/snmpd.conf 4) Add SNMP v3 users. In this example 'roadmin' for read-only access and 'rwadmin' for read-write access. Let's use SHA as password hash algorithm and AES for session encryption: createUser roadmin SHA admin123 AES createUser rwadmin SHA admin321 AES rouser roadmin authpriv system rwuser rwadmin authpriv system 5) Enable snmpd and start it systemctl enable snmpd systemctl start snmpd 6) For test use following SNMP v3 request snmpget -v 3 -u roadmin -l authPriv -a SHA -x AES \ -A admin123 -X admin123 localhost sysUpTime.0 It works. Perfect! 7) Now let's setup config in our home directory so we don't have to enter passwords in plaintext on the command line Create .snmp directory in our home mkdir ~/.snmp touch ~/.snmp/snmp.conf 8) Make sure the configuration is only available to this user chmod -R 600 ~/.snmp 9) Open ~/.snmp/snmp.conf vim ~/.snmp/snmp.conf 10) Enter the connection settings defVersion 3 defSecurityName roadmin defSecurityLevel authPriv defAuthType SHA defPrivType AES defAuthPassphrase admin123 defPrivPassphrase admin123 11) Let's test. This time authentication settings are taken from the snmp.conf in our home directory snmpwalk -v3 localhost sysUpTime.0
Views: 2448 Jaroslav Kucera
How to Install and Configure SNMP in CentOS
 
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This video explains the installation of SNMP in CentOS - SNMP is an internet standard protocol that remotely retrieve the statistics of the routers and firewalls. For more explanation on this video: https://www.linuxhelp.com/how-to-install-and-configure-snmp-in-centos/
Views: 6492 Linux Help
SNMP Traps Guide
 
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This video explains how to setup SNMP traps on a device monitored by SNMP, an Agent device as well as networking device.
Views: 58618 packettrapmsp
Installing and Configuring SNMP on Linux
 
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Shows how to install the net-snmp and net-snmp-utils packages to basic SNMP support on Linux. Also shows using the snmpget and snmpwalk commands for basic queries.
Views: 5918 NetSecProf
Change a Controller's SNMP Trap Configuration
 
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This video shows how to log into a site controller to set or change the SNMP trap configuration.
Views: 368 Phoenix Broadband
Quick setup of SNMP v3 DTLS/TLS access in CentOS/RHEL 7 Linux - net-snmp
 
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The video gives basic overview how to setup SNMP v3 access using DTLS/TLS method. There are used commands: _____________ Hello, in CentOS/RHEL 7 we're going to setup SNMP v3 access using secure TLS/DTLS access method. We will depend on self-signed certificates. For simplicity of this demo there is disabled firewalld and SELinux is in permissive mode. We will use 2 nodes: - first.localdomain - agent, in role of SNMPd server - second.localdomain - manager, in role of node which creates snmpget/snmpwalk requests. It may be some monitoring application as well. 1) Where are we? cat /etc/centos-release 2) On both nodes install net-snmp RPMs yum -y install net-snmp net-snmp-libs net-snmp-utils \ net-snmp-agent-libs net-snmp-perl net-snmp-devel 3) Generate self-signed certificate on the agent net-snmp-cert gencert -I -t snmpd \ -n first.localdomain --san DNS:first.localdomain 4) Generate self-signed certificate on the manager net-snmp-cert gencert -I -t manager-second \ -n manager --san email:[email protected] 5) Certificates have been generated in the /etc/snmp/tls subtree ls -lR /etc/snmp/tls It is because we used root users on both nodes. If it was ordinary user, certificates would be in ~/.snmp/tls subtree. 6) On the agent copy snmpd.crt certificate to the manager node scp /etc/snmp/tls/certs/snmpd.crt [email protected]:/etc/snmp/tls/certs/ 7) On the manager copy manager-second.crt certificate to the agent node scp /etc/snmp/tls/certs/manager-second.crt [email protected]:/etc/snmp/tls/certs/ 8) On both nodes display available certificates net-snmp-cert showcerts --fingerprint Fingerprints are the ultimate keys and we will need them 9) On the agent open /etc/snmp/snmpd.conf vim /etc/snmp/snmpd.conf 10) Add following lines. We will have to insert real SHA1 fingerprints as retrieved in step 9 [snmp] localCert {agent certificate} certSecName 20 {manager certificate} --sn rwadmin rwuser -s tsm "rwadmin" 11) Ensure the snmpd listens for TLS/DTLS requests. Open /etc/sysconfig/snmpd vim /etc/sysconfig/snmpd 12) Add following content OPTIONS="-LS5d -p /var/run/snmpd.pid dtlsudp:127.0.0.1:10161 tlstcp:127.0.0.1:10161 dtlsudp:first:10161 tlstcp:first:10161" 13) Enable snmpd and start it systemctl enable snmpd systemctl start snmpd 14) Fetch with following SNMP v3 DTLS request. Again insert real SHA1 fingerprints as retrieved in step 9 snmpget -v 3 --defSecurityModel=tsm -u manager \ -l authPriv \ -T our_identity={manager certificate} \ -T their_identity={agent certificate} \ dtlsudp:first:10161 sysUpTime.0 It works. Perfect! 15) And finally try let's try TLS variant as well snmpget -v 3 --defSecurityModel=tsm -u manager \ -l authPriv \ -T our_identity={manager certificate} \ -T their_identity={agent certificate} \ tlstcp:first:10161 sysUpTime.0 Works too. Great! We've established TLS/DTLS SNMP v3 access to our server. This is the END. Thank you for watching!
Views: 787 Jaroslav Kucera
Ubuntu - SNMP Configuration
 
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This video will show how to configure SNMP on an ubuntu linux server. TUTORIAL: http://www.fucking-it.com/articles/ubuntu/44-ubuntu-snmp-installation
Views: 5168 FKIT
Windows 10 : How to Start or Stop SNMP Trap Service
 
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This video show How to Start or Stop SNMP Trap Service in Windows 10 Pro. I use Dell Inspiron 14 3000 Series in this tutorial
Views: 4296 Win10User
✅ How to Enable SNMP in Windows 10 | How to Install SNMP in Windows 10 | SYSNETTECHSolutions
 
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Views: 11434 SYSNETTECH Solutions
How to install and configure snmp in windows 7
 
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How to install and configure snmp in windows 7 http://www.solutionsatexperts.com How to enable snmp in windows 7 How to add windows 7 client in cacti How to configure snmp in windows 7 How to install snmp service in windows 7
Views: 136437 Solutionsatexperts
SNMPv3 with Wireshark
 
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Decrypt SNMPv3 packets in Wireshark
Views: 996 Meyer Solutions LLC
Windows 2012 - Install and Configure SNMP
 
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This video shows a procedure of installation and configuration of SNMP service on a computer running the Windows 2012 operating system. TUTORIAL: http://www.fucking-it.com/articles/windows-2012/375-windows-2012-install-snmp
Views: 16646 FKIT
Ubuntu - Install secure SNMP (Version 3)
 
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This video demonstrates how to configure secure SNMP, ie SNMP version 3 on a server running Ubuntu. In this example we setup a user named gohan to access the server securely via SNMP.
Views: 1100 FKIT
2 - Install Cacti (Network Monitoring) on Ubuntu Server
 
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sudo apt-get update sudo apt-get upgrade sudo apt-get install apache2 sudo apt-get install mysql-server sudo apt-get install snmp snmpd sudo apt-get install rrdtool sudo apt-get install cacti
Views: 96 hyk4
Core Network Emulator Install on VirtualBox
 
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Core Network Emulator Install on VirtualBox Ubuntu 16.04 Install CORE from Github (Ubuntu 16.04 LTS) $ sudo apt-get install core-network $ sudo apt-get update $ sudo apt-get install git $ sudo apt-get install bash bridge-utils ebtables $ sudo apt-get install iproute libev-dev python tcl8.5 tk8.5 libtk-img $ sudo apt-get install autoconf automake gcc libev-dev make python-dev $ sudo apt-get install libreadline-dev pkg-config imagemagick help2man Then, clone the CORE source code from Github and run the install scripts. $ cd $ git clone https://github.com/coreemu/core.git $ cd core $ ./bootstrap.sh $ ./configure $ make $ sudo make install Then, restart the system. To update CORE in the future To get the latest patches and upgrade CORE, pull the latest version of CORE from Github and run the install scripts again. $ cd $ cd core $ git pull $ ./bootstrap.sh $ ./configure $ make $ sudo make install Install network software $ sudo apt-get install quagga quagga-doc $ sudo apt-get install openssh-server isc-dhcp-server isc-dhcp-client $ sudo apt-get install vsftpd apache2 tcpdump radvd at ucarp openvpn $ sudo apt-get install ipsec-tools racoon traceroute mgen wireshark $ sudo apt-get install iperf3 tshark snmpd snmptrapd openssh-client Also, set up Wireshark so normal users can capture data. $ sudo setcap 'CAP_NET_RAW+eip CAP_NET_ADMIN+eip' /usr/bin/dumpcap $ sudo adduser $USER wireshark NOW restart to activate these changes. Set up Quagga $ sudo touch /etc/quagga/zebra.conf $ sudo touch /etc/quagga/ospfd.conf $ sudo touch /etc/quagga/ospf6d.conf $ sudo touch /etc/quagga/ripd.conf $ sudo touch /etc/quagga/ripngd.conf $ sudo touch /etc/quagga/isisd.conf $ sudo touch /etc/quagga/pimd.conf $ sudo touch /etc/quagga/vtysh.conf $ sudo chown quagga.quaggavty /etc/quagga/*.conf $ sudo chmod 666 /etc/quagga/*.conf Edit the Quagga daemons file. $ sudo nano /etc/quagga/daemons The new file should look like the listing below zebra=yes bgpd=no ospfd=yes ospf6d=no ripd=no ripngd=no isisd=no babeld=no Set up environment variables $ sudo bash -c 'echo "export VTYSH_PAGER=more" /etc/bash.bashrc' $ sudo bash -c 'echo "VTYSH_PAGER=more" /etc/environment' Run CORE First, start the CORE daemon: $ sudo service core-daemon start Then, run the CORE GUI $ core-gui This launches the CORE GUI. You may encounter an error at this point, if you did not restart after you installed CORE. If you see the error that tells you the file core-daemon.service does not exist, restart your system. After restarting, try starting the core-daemon service, again and run this command. $ chown -R core /home/core/.core
Views: 969 Damien Kettle
Aula 1 - Introdução ao curso Zabbix
 
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Aula de introdução ao curso de Zabbix 4.0 LTS
Views: 164 Vitor Mazuco

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