Home page logo

basics logo Security Basics mailing list archives

RE: deny access
From: "Paris E. Stone" <pstone () alhurra com>
Date: Tue, 30 Nov 2004 19:51:46 -0500

~Begin Chastise~
He posted to the SECURITY-BASICS mailing list.  
That would pretty much "determine the correct level of help" in my mind.
~End Chastise~
~Begin pathetic attempt at help~

And, technically speaking,

"access-list 101 deny ip source ip destination ip" 

is the correct syntax, but the information he didn't get was:

There is an implicit "deny any any" in all Cisco ACLs, which means a 1
line ACL to block one host would effectively block all hosts.
ACL built, but it still needs bound

From interface config mode,

"ip access-group 101 in interface "

is the second part of the equation.
If there are no ACLs now, make it a two liner, the deny line, and:
access-list 101 permit ip any any

~End pathetic attempt at help~

My .02

-----Original Message-----
From: richardw [mailto:richardw () area52 allserve net] 
Sent: Monday, November 29, 2004 11:11 PM
To: GuidoZ
Cc: Carlos Garcia; Agarwal, Ankur; security-basics () securityfocus com
Subject: Re: deny access

Everyone, I want to take this opportunity to apologize for Guido. 
Carlos, if you still need help, email me off the list, and we'll help 
get squared away.



GuidoZ wrote:
This is why I said it was better for him to find the answers on his
own, and not just tell him the ACL format. Otherwise it's very likely
that something will get messed up and he won't be able to fix it, or
ask questions online. ;)

Think about things before you act everyone. There is certainly nothing
wrong with helping out someone in need, although, you must determine
the correct level of help.

Peace. ~G

On Thu, 25 Nov 2004 19:40:40 -0700, Carlos Garcia
<carlosg () cabonet net mx> wrote:

ok i just write
access-list 101 deny ip host any is this ok?
i put too
access-list 101 deny ip any...
and can somebody tell me how to improve this, i run some servers and i
to protec them
mail, web,dns,proxy's where can i find a list so that it helps me how
configure the router to support QoS i need it for VoIP service???
thanks for
all the help

Carlos A. Garcia G.
Cabonet Staff
Tel (624) 14 30120

----- Original Message -----
From: "Agarwal, Ankur" <Ankur.Agarwal () colt-telecom com>
To: "'Carlos Garcia'" <carlosg () cabonet net mx>;
<security-basics () securityfocus com>
Sent: Thursday, November 25, 2004 7:17 PM
Subject: RE: deny access

Simply create an deny access list to block this IP.

Access-list 101 deny ip source ip destination ip

Thanks & Regards,

Ankur Agarwal

One Dial : 8-911-7428
Tel : +91 124 5157000 (Ext. 2272)
*Cell : +91 9810702016

COLT India
ankur.agarwal () colt-telecom com


-----Original Message-----
From: Carlos Garcia [mailto:carlosg () cabonet net mx]
Sent: 25 November 2004 04:58
To: security-basics () securityfocus com
Subject: deny access

newbie question how can i block this ip i have a cisco
this ip is trying to send mail with my server, i did not configure
router so i dont know how to do this any help?

Carlos A. Garcia G.
Cabonet Staff
Tel (624) 14 30120

The message is intended for the named addressee only and may not be
disclosed to or used by anyone else, nor may it be copied in any way.

The contents of this message and its attachments are confidential and
also be subject to legal privilege.  If you are not the named
and/or have received this message in error, please advise us by
security () colt net and delete the message and any attachments without
retaining any copies.

Internet communications are not secure and COLT does not accept
responsibility for this message, its contents nor responsibility for

No contracts can be created or varied on behalf of COLT
Telecommunications, its subsidiaries or affiliates ("COLT") and any
party by email Communications unless expressly agreed in writing with
other party.

Please note that incoming emails will be automatically scanned to
eliminate potential viruses and unsolicited promotional emails. For
information refer to www.colt.net or contact us on +44(0)20 7390

   ____/\___  |                                     | "If you can't beat
   ___/__\__) |              richardw               | them, then they're
  (__/    \__ | mailto:richardw!area52.allserve.net | not tied down good
    /      \  |                                     | enough..."

  By Date           By Thread  

Current thread:
[ Nmap | Sec Tools | Mailing Lists | Site News | About/Contact | Advertising | Privacy ]