Re: [cisco-ttl] Re: firewall/IDS oneri

From: Huzeyfe ONAL (huzeyfe.onal_at_gmail.com)
Date: Wed Nov 24 2004 - 21:27:26 GMT

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    merhaba,
    Firewall olarak OpenBSD PF ini kendiniz yapilandirirsaniz daha uygun
    olur , snortu da uzerine ya da farkli bir makineye uyarlayabilirseniz
    ADSL baglanti icin ideal bir yapi kurmus olursunuz. Her iki urun icinde
    yeterli dokumantasyon ve destek bulunur. Iptables yerine Pf tavsiye
    etmemin sebebi load balancing bwm gibi ozellikler icin cok daha
    basit/anlasilir arabirim saglamasi ve calistigig sistemin daha az kaynak
    tuketmesi.

    > Mantikli :-)
    >
    > ----- Original Message -----
    > From: "chaq_al" <usimsek_at_sage.tubitak.gov.tr>
    > To: <cisco-ttl_at_yahoogroups.com>
    > Sent: Wednesday, November 24, 2004 2:06 PM
    > Subject: [cisco-ttl] Re: firewall/IDS oneri
    >
    >
    >
    >
    > Checkpoint bildiğim kadarıyla israil merkezli bir firma-bunu bilmekte
    > yarar var :).Bende bsd tabanlı bir FW öneririm (hurdaya çıkmış bir
    > makinada bile kurulup kullanılabilir).Gerçi ideali farkı ürünlerden
    > oluşan 2 katmanlı bir yapı kurmaktır ama bu derece mission critical
    > verileriniz ve bunları idame ettirecek iş gücü kaynağı var mı ve buna
    > değer mi düşünmek lazım.i-bekçi yeni bir ürün,özellikle kamu
    > kurumlarında-emniyette vs-kullanıldığını duymuştum.Neyse IDS olarak
    > da snort en yaygını diye biliyorum.
    >
    > --- In cisco-ttl_at_yahoogroups.com, Ozgur Erdogan <egroupsbox_at_y...>
    > wrote:
    > > Merhaba herkese
    > >
    > > bir adsl router modem arkasinda sirketin erisimi icin isa server
    > makine var. yakin zamanda web server ve email server devreye
    > alinacak. web server ve email server icin hatlarin birbirinin yedegi
    > olmasi icin baska bir adsl uzerinden cikarilmasi isteniyor.
    > >
    > > web server ve email server onunde ids ve firewall icin bir yapi
    > gerekiyor.
    > >
    > > bu kullanimda iki adsl hatti icin nasil bir kullanim yapilmasi daha
    > iyi olur?
    > >
    > > ids icin snort mu onerirsiniz yada donanim firewall olarak pix,
    > checkpoint, netscreen yada openbsd tabanli i-bekci (www.i-bekci.com)
    > nasil olur?
    > >
    > > tesekkurler ve kolay gelsin..
    > >
    > >
    > >
    > >
    > > Iki adsl hattindan birinde web server ve email server, digerinde
    > internet access server olacagi bir internet cikisi yapisinin onundeki
    > firewall, ids, router yapilandirmasi icin onerilere ihtiyacim var.
    > > ornegin: router
    > > firewall
    > >
    > > emre aksoy <enisaksoy2000_at_y...> wrote:
    > >
    > > eigrp ile bu sorunu cözebilirsin.igrp unequal loadbalancing
    > desteklemiyor.
    > >
    > > ege iyioglu wrote:Selamlar
    > > 32 mb ramli bir 1721 router imiz var.
    > > halihazirda 1 mbit leased line baglanti uzerinden isp ye baglanip
    > internete cikiyoruz.
    > > buna ilaveten bir adet ethernet interface daha ekleyip ona da 8mbit
    > bir wireless baglanti baglamayi ve igrp veya eigrp ile bunlari load
    > sharing uzerinden calistirmayi hedefliyoruz. sizce calisir mi yoksa
    > ram i arttirmak veya router i degistirmek gerekir mi dersiniz?
    > >
    > > run ve ver ciktilarini gonderiyorum:
    > >
    > > ------- sh run --------
    > > Building configuration...
    > >
    > > Current configuration : 1230 bytes
    > > !
    > > ! No configuration change since last restart
    > > !
    > > version 12.2
    > > service timestamps debug uptime
    > > service timestamps log uptime
    > > no service password-encryption
    > > !
    > > hostname #####
    > > !
    > > logging buffered 16380 debugging
    > > no logging console
    > > enable password #####
    > > !
    > > username ##### callback-dialstring ##### password 0 ##### ip subnet-
    > zero ! !
    > > ! ! chat-script callback ABORT ERROR ABORT BUSY "" "ATDT\T" TIMEOUT
    > 30
    > > "CONNECT" \c modemcap entry usrmodem:MSC=&FS0=1&C1&D3&H1&R2&B1
    > > !
    > > !
    > > !
    > > interface FastEthernet0
    > > ip address 212.x.x.x 255.255.255.240
    > > speed auto
    > > !
    > > interface Serial0
    > > description #####
    > > bandwidth 1024
    > > ip address 212.x.x.x 255.255.255.252
    > > no ip route-cache
    > > no ip mroute-cache
    > > !
    > > interface Async5
    > > ip address 192.168.x.x 255.255.255.0
    > > encapsulation ppp
    > > async default routing
    > > async mode interactive
    > > ppp callback accept
    > > ppp authentication pap
    > > !
    > > ip classless
    > > ip classless
    > > no ip http server
    > > ip pim bidir-enable
    > > !
    > > !
    > > !
    > > !
    > > line con 0
    > > line aux 0
    > > script callback callback
    > > login local
    > > modem InOut
    > > modem autoconfigure type usrmodem
    > > transport input all
    > > autoselect during-login
    > > speed 300
    > > flowcontrol hardware
    > > line vty 0 4
    > > password #####
    > > login
    > > !
    > > no scheduler allocate
    > > end
    > >
    > > --------- sh ver -----------
    > >
    > > Cisco Internetwork Operating System Software
    > > IOS (tm) C1700 Software (C1700-SY-M), Version 12.2(8)YJ, EARLY
    > DEPLOYMENT
    > > RELEAS E SOFTWARE (fc1) Synched to technology version 12.2(8.5)T
    > TAC
    > > Support: http://www.cisco.com/tac Copyright (c) 1986-2002 by cisco
    > Systems,
    > > Inc. Compiled Fri 21-Jun-02 15:38 by ealyon Image text-base:
    > 0x80008124,
    > > data-base: 0x80B64A38
    > >
    > > ROM: System Bootstrap, Version 12.2(7r)XM1, RELEASE SOFTWARE (fc1)
    > > ROM: C1700 Software (C1700-SY-M), Version 12.2(8)YJ, EARLY
    > DEPLOYMENT
    > > RELEASE SO FTWARE (fc1)
    > >
    > > bilfenrtr uptime is 1 day, 2 hours, 31 minutes
    > > System returned to ROM by power-on
    > > System restarted at 16:27:54 UTC Fri Nov 5 2004
    > > System image file is "flash:c1700-sy-mz.122-8.YJ.bin"
    > >
    > > cisco 1721 (MPC860P) processor (revision 0x100) with 29492K/3276K
    > bytes of
    > > memor y. Processor board ID FOC06330050 (1457551649), with hardware
    > revision
    > > 0000 MPC860P processor: part number 5, mask 2 Bridging software.
    > X.25
    > > software, Version 3.0.0. 1 FastEthernet/IEEE 802.3 interface(s) 1
    > > Serial(sync/async) network interface(s) 32K bytes of non-volatile
    > > configuration memory. 16384K bytes of processor board System flash
    > > (Read/Write)
    > >
    > > Configuration register is 0x2102
    > >
    > > saygilar
    > > ege
    > >
    > >
    > > [Non-text portions of this message have been removed]
    > >
    > >
    > >
    > > Bu listenin Cisco Systems ile herhangi bir baglantisi
    > bulunmamaktadir.
    > >
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