Before you start quickly remind you that this tutorial is compatible with Cisco ASA 55xx series (5500, 5510.5520, etc). While it is true that firewalls are Cisco ASA ASDM to configure the interface is always necessary to enter the command line to do various administrative and configuration. Since the service via telnet is so uncertain, this day we will set the ssh service on the firewall to manage the LAN. Within the computer console keyboards; Firewall_5510 # config t have added the password to allow ssh access, then the username and password to connect via ssh; Firewall_5510 (config) # enable password xxxxx (your password) Firewall_5510 (config) # username tu_usuario your_password password can use different authentication methods, such as RADIUS, TATAC, etc ... In our example, the authentication is done locally. Firewall_5510 (config) # aaa ... Read the full article »

To verify that our domain records in DNS are functioning properly, we dig tool to make such verification. Just need to check directly against the server dominio.Esto is done to not wait until the records are propagated to all Internet DNS errors. So now we check the mail domain is correctly entered in the name server user @ localhost: ~ $ dig @ mon.guatewireless.org mail.guatewireless.org, <<>> DiG 9.7.0-P1 <<>> mail. guatewireless.org @ mon.guatewireless.org;; global options: + cmd; Got answer:;; ->> HEADER <<- opcode: QUERY, status: NOERROR, id: 16571;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1;; QUESTION SECTION:; mail.guatewireless.org. IN A;; ANSWER SECTION: mail.guatewireless.org. 259200 IN A 10.10.2.5;; AUTHORITY SECTION: guatewireless.org. 259200 IN NS ns.guatewireless.org. ;; ADDITIONAL SECTION: ns.guatewireless.org. 259200 IN A 127.0.0.1;; Query time: 1 msec;; SERVER: 10.10.2.1 # 53 (10.10.2.1); WHEN: Fri Feb 25 ... Read the full article »