Cisco switch - find IP connected to port

Cisco switch - find IP connected to port


"sh mac address-table". This will give which MAC is connected to which port.
"sh ip device tracking interface gigabitEthernet ". This will give which IP is connectd to a port.
"sh ip arp" will give you a IP to MAC table

Comments

Post a Comment

Popular posts from this blog

How to clean DB from old logs in Magento 1.x

How to clean DB from old logs in Magento 1.x Using MySQL truncate log_customer ; truncate log_quote ; truncate log_summary ; truncate log_summary_type ; truncate log_url ; truncate log_url_info ; truncate log_visitor ; truncate log_visitor_info ; truncate log_visitor_online ;     login to shell(SSH)  go with root/shell folder. execute the below command inside the shell folder   php - f log . php clean   enter this command to view the log data's size php -f log.php status This method will help you to clean the log data's very easy way.  
Read more

Securing the Pi-hole with fail2ban to prevent DNS Amplification attacks

Securing the Pi-hole with fail2ban to prevent DNS Amplification attacks   1. Install fail2ban  sudo apt-get update ; sudo apt-get install fail2ban 2. create jail file vi /etc/fail2ban/jail.d/pihole-dns.conf [pihole-dns] enabled = true port     = 53 action   = %(banaction)s[name=%(__name__)s-tcp, port="%(port)s", protocol="tcp", chain="%(chain)s", actname=%(banaction)s-tcp]            %(banaction)s[name=%(__name__)s-udp, port="%(port)s", protocol="udp", chain="%(chain)s", actname=%(banaction)s-udp] logpath = /var/log/pihole.log findtime = 60 maxretry = 5 bantime = 3600   3. create filter file vi /etc/fail2ban/filter.d/pihole-dns.conf # Fail2Ban configuration file # # script from www.marek.tokyo # [INCLUDES] # Read common prefixes. If any customizations available -- read them from # common.local before = common.conf [Definition] _daemon = dnsmasq # log example from /var/log/pihole.
Read more

How can I chroot sftp-only SSH users into their homes?

All this pain is thanks to several security issues as detailed here . Basically the chroot directory has to be owned by root and can't be any group-write access. Lovely. So you essentially need to turn your chroot into a holding cell and within that you can have your editable content.   sudo chown root /home/bob sudo chmod go-w /home/bob sudo mkdir /home/bob/writeable sudo chown bob:sftponly /home/bob/writeable sudo chmod ug+rwX /home/bob/writeable And bam, you can log in and write in /writeable . found at:  http://askubuntu.com/questions/134425/how-can-i-chroot-sftp-only-ssh-users-into-their-homes
Read more