Postfix RBL

smtpd_client_restrictions = reject_rbl_client b.barracudacentral.org,reject_rbl_client cbl.abuseat.org,reject_rbl_client sbl.spamhaus.org,reject_rbl_c...

CCNP BGP Lab1

R2 conf t int f0/0 bandwidth 1000 ip add 172.16.0.2 255.255.0.0 no shut int s1/0 clock rate 2000000 ip add 192.168.0.2 255.255.255.0 no shut end R3 co...

HCNA GVRP Lab1-3

S1 sys sysname S1 int g0/0/13 port link-type trunk port trunk allow-pass vlan all S3 sys sysname S3 int e0/0/13 port link-type trunk port trunk allow-...