Network Security

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Hi thereI can't telnet from a host(Ubuntu 12.10) in our DMZ to an outside MX on port TCP 587. Inspection for ESMTP not enabled. Port 587 enabled for host in DMZ to any.Anyone has an idea why ? Best RegardsDavid                  

Hello all,I have attached a network diagram with this post. It shows a Cisco Catalyst 4500 to which we have connected our Datacenter customers an also our Back office LAN.What happened was that there was a DDOS attack towards Customer XYZ. It brought...

mukundh86 by Level 1
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Hi all, I have an issue with portforwarding in my teleeye cctv behind asa 8.4.I can browse the DVR outside  via http however when i attempt to login, "server busy" will prompt afterwards.Note: Theres no issue when acesssing the DVR locally.Heres my c...

Dear Friends,I have an issue going on with FWSM my server vlan is keep getting unreachable from inside as well outside from the network when i reset that particular interface from FWSM thn it became normal, could tell me what's going on with the traf...

Hi all ,       Please go through my network diagram I am using ospf in the network .I only mentioned some of the routers in the diagram .Consider a Department A which is having a branch connected to Router R3 and to some other routers through E1 link...

Hi,We have 2 ASA's configured in ACTIVE/ACTIVE mode. Have 2 failover groups configured and currently both the groups (1 and 2) are active in secondary unit. How I can bring the groups to its default position. i.e. group 1 active in Primary and group ...

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