Re: [newbie] Ok dumb firewall question time

2000-06-25 Thread Tom Brinkman

On Sat, 24 Jun 2000, you wrote:
 
 I followed your advise and kept at it, using your instructions above I
 followed almost all of them.  I did not remember to deny everything you
 said to deny.  I have a firewall!  It has holes.  I have to go back in and
 change some of the settings. I think I can do it as root in an editor,
 yes?  I will make the attempt to change some of the settings to deny.  Such
 as my POP3 is open and maybe telnet if I have it.  Fortunatly right now I
 am still on a modem. In the near future I want to go to DSL or cable modem
 and then the firewall becomes critical...If you can tell me how to go
 back in and access the configuration to edit the ports I would appreciate
 it.  I will figure it out sooner or later, but help keeps the frustration
 level down..   Thanks again for your assistance, Dennis:)

Just re-run the install.sh, when you answer the questions
differently, it'll write a new conf.  For reasons I don't
understand if I don't leave ports 25 and 110 open I can't receive
mail.  So they're open, but I never connect as other than user so
I'm not worring about it.  Prob'ly has somethin to do with my ISP.

-- 
~~   Tom Brinkman[EMAIL PROTECTED]




Re: [newbie] Ok dumb firewall question time

2000-06-24 Thread ~*Mark*~

Dennis Myers wrote:
 
 Mark Weaver wrote:
 
  yes, and yes.
 
  here is a link to a site where you can download a very configurable
  firewall great for beginners.
 
  http://www.pmfirewall.com/PMFirewall/
 
  --
  Mark
 
  I love my Linux Box!
  REASON #1 -- ...it's not Windows!
  Registered Linux user #1299563
 
  On Fri, 23 Jun 2000, Vic wrote:
 
  Is any firewall just for blocking ports or can it also
  protect the needed open ones like ftp 21 www 80 and so forth?
  
 
 I tried the mentioned firewall and once again I am feeling stupid. I
 loaded it and immediately could not get Netscape to load .  It would
 stall with only the stop sign and the frame showing.  I then
 uninstalled and got my Netscape and mail back.  I must have set a
 closed port or deny in the wrong place.  Again the documentation is
 not set up for virtual dummies, but only for people who have alot of
 experience either with  Linux or as programmers etc.  Anybody know
 what a good set of setings would be and still allow Netscape access.
 I keep looking for books and online documentation.  Nobody writes
 Linux for Idiots, you have to be at least a dummy. "Life is good,
 just don't weaken"   Dennis
 
 Registered Linux User  # 180842

Dennis,

Don't feel too badly about it. It took me a few trys before I got the
thing working for me. It helps of you leave port 23 (SMPT) open and port
80 (HTTP) that will allow you to access your mail server and the
internet.

Set everything else to be closed and deny all connections.

The ranges you want to deny connections to are this: 

these ranges are given as pairs...IP/SUBNETMASK

Set the ranges as such  1.2.3.0/255.255.255.0

For the range that is yourself so you can access your mail server and
the internet your range us this:127.0.0.1/255.255.255.0

Most likely your ISP assigns you a "dynamic" IP number each time you log
on. That's ok. Don't worry about trying to set that. You will be asked
about this. I believe the question asks something about DHCP assigning
an IP address. Answer "y" to this one.

Keep working at cause this is one nice little firewall. My Linux box,
after being tested by the Shields Up web site was shown to be running in
Full on stealth mode. I'm totally cloaked and can't be seen on the
internet. The packets come in and disappear into a "Blackhole!" Never to
be seen or heard from again. I LOVE IT.

Here's the URL for that site if you want to test your system.
https://grc.com/x/ne.dll?bh0bkyd2

Good luck and press on forward!




Re: [newbie] Ok dumb firewall question time

2000-06-24 Thread Dennis Myers

~*Mark*~ wrote:

 Dennis Myers wrote:
 
  Mark Weaver wrote:
 
   yes, and yes.
  
   here is a link to a site where you can download a very configurable
   firewall great for beginners.
  
   http://www.pmfirewall.com/PMFirewall/
  
   --
   Mark
  
   I love my Linux Box!
   REASON #1 -- ...it's not Windows!
   Registered Linux user #1299563
  
   On Fri, 23 Jun 2000, Vic wrote:
  
   Is any firewall just for blocking ports or can it also
   protect the needed open ones like ftp 21 www 80 and so forth?
   
 
  I tried the mentioned firewall and once again I am feeling stupid. I
  loaded it and immediately could not get Netscape to load .  It would
  stall with only the stop sign and the frame showing.  I then
  uninstalled and got my Netscape and mail back.  I must have set a
  closed port or deny in the wrong place.  Again the documentation is
  not set up for virtual dummies, but only for people who have alot of
  experience either with  Linux or as programmers etc.  Anybody know
  what a good set of setings would be and still allow Netscape access.
  I keep looking for books and online documentation.  Nobody writes
  Linux for Idiots, you have to be at least a dummy. "Life is good,
  just don't weaken"   Dennis
 
  Registered Linux User  # 180842

 Dennis,

 Don't feel too badly about it. It took me a few trys before I got the
 thing working for me. It helps of you leave port 23 (SMPT) open and port
 80 (HTTP) that will allow you to access your mail server and the
 internet.

 Set everything else to be closed and deny all connections.

 The ranges you want to deny connections to are this:

 these ranges are given as pairs...IP/SUBNETMASK

 Set the ranges as such  1.2.3.0/255.255.255.0

 For the range that is yourself so you can access your mail server and
 the internet your range us this:127.0.0.1/255.255.255.0

 Most likely your ISP assigns you a "dynamic" IP number each time you log
 on. That's ok. Don't worry about trying to set that. You will be asked
 about this. I believe the question asks something about DHCP assigning
 an IP address. Answer "y" to this one.

 Keep working at cause this is one nice little firewall. My Linux box,
 after being tested by the Shields Up web site was shown to be running in
 Full on stealth mode. I'm totally cloaked and can't be seen on the
 internet. The packets come in and disappear into a "Blackhole!" Never to
 be seen or heard from again. I LOVE IT.

 Here's the URL for that site if you want to test your system.
 https://grc.com/x/ne.dll?bh0bkyd2

 Good luck and press on forward!

well, I pressed on and used most of your advice ,  but did not totally
understand what you were telling me.  Anyway, the fire wall works and I am
partially protected. I will have to go back in and close some of the holes
I left open.  I am not sure exactly how I do this.  As root and open up the
package in an editor?  Any way your help is invaluable and the community in
general provides a lot of support and good advice.  Thanks, to everybody
who contributes.




Re: [newbie] Ok dumb firewall question time

2000-06-24 Thread Dennis Myers

~*Mark*~ wrote:

 Dennis Myers wrote:
 
  Mark Weaver wrote:
 
   yes, and yes.
  
   here is a link to a site where you can download a very configurable
   firewall great for beginners.
  
   http://www.pmfirewall.com/PMFirewall/
  
   --
   Mark
  
   I love my Linux Box!
   REASON #1 -- ...it's not Windows!
   Registered Linux user #1299563
  
   On Fri, 23 Jun 2000, Vic wrote:
  
   Is any firewall just for blocking ports or can it also
   protect the needed open ones like ftp 21 www 80 and so forth?
   
 
  I tried the mentioned firewall and once again I am feeling stupid. I
  loaded it and immediately could not get Netscape to load .  It would
  stall with only the stop sign and the frame showing.  I then
  uninstalled and got my Netscape and mail back.  I must have set a
  closed port or deny in the wrong place.  Again the documentation is
  not set up for virtual dummies, but only for people who have alot of
  experience either with  Linux or as programmers etc.  Anybody know
  what a good set of setings would be and still allow Netscape access.
  I keep looking for books and online documentation.  Nobody writes
  Linux for Idiots, you have to be at least a dummy. "Life is good,
  just don't weaken"   Dennis
 
  Registered Linux User  # 180842

 Dennis,

 Don't feel too badly about it. It took me a few trys before I got the
 thing working for me. It helps of you leave port 23 (SMPT) open and port
 80 (HTTP) that will allow you to access your mail server and the
 internet.

 Set everything else to be closed and deny all connections.

 The ranges you want to deny connections to are this:

 these ranges are given as pairs...IP/SUBNETMASK

 Set the ranges as such  1.2.3.0/255.255.255.0

 For the range that is yourself so you can access your mail server and
 the internet your range us this:127.0.0.1/255.255.255.0

 Most likely your ISP assigns you a "dynamic" IP number each time you log
 on. That's ok. Don't worry about trying to set that. You will be asked
 about this. I believe the question asks something about DHCP assigning
 an IP address. Answer "y" to this one.

 Keep working at cause this is one nice little firewall. My Linux box,
 after being tested by the Shields Up web site was shown to be running in
 Full on stealth mode. I'm totally cloaked and can't be seen on the
 internet. The packets come in and disappear into a "Blackhole!" Never to
 be seen or heard from again. I LOVE IT.

 Here's the URL for that site if you want to test your system.
 https://grc.com/x/ne.dll?bh0bkyd2

 Good luck and press on forward!

I followed your advise and kept at it, using your instructions above I
followed almost all of them.  I did not remember to deny everything you
said to deny.  I have a firewall!  It has holes.  I have to go back in and
change some of the settings. I think I can do it as root in an editor,
yes?  I will make the attempt to change some of the settings to deny.  Such
as my POP3 is open and maybe telnet if I have it.  Fortunatly right now I
am still on a modem. In the near future I want to go to DSL or cable modem
and then the firewall becomes critical...If you can tell me how to go
back in and access the configuration to edit the ports I would appreciate
it.  I will figure it out sooner or later, but help keeps the frustration
level down..   Thanks again for your assistance, Dennis:)




[newbie] Ok dumb firewall question time

2000-06-23 Thread Vic

Is any firewall just for blocking ports or can it also
protect the needed open ones like ftp 21 www 80 and so forth?




Re: [newbie] Ok dumb firewall question time

2000-06-23 Thread Paul

On Fri, 23 Jun 2000, Vic wrote:

Is any firewall just for blocking ports or can it also
protect the needed open ones like ftp 21 www 80 and so forth?

Depending on how you configure things, you can hammer shut each and every
port that you like. You should also be able to limit the allowed IP
addresses per port.

Paul

-- 
If you lose money, you lose nothing.
If you lose (the) honour, you lose a lot.
If you lose your courage, you've lost everything.
But if you lose friendship, then you've lost the world!

)0([[EMAIL PROTECTED]])0(
http://nlpagan.net -  ICQ 147208
Registered  Linux  User   174403




Re: [newbie] Ok dumb firewall question time

2000-06-23 Thread Mark Weaver

yes, and yes.

here is a link to a site where you can download a very configurable
firewall great for beginners.

http://www.pmfirewall.com/PMFirewall/

-- 
Mark

I love my Linux Box!
REASON #1 -- ...it's not Windows!
Registered Linux user #1299563

On Fri, 23 Jun 2000, Vic wrote:

Is any firewall just for blocking ports or can it also
protect the needed open ones like ftp 21 www 80 and so forth?





Re: [newbie] Ok dumb firewall question time

2000-06-23 Thread Dennis Myers

Mark Weaver wrote:

 yes, and yes.

 here is a link to a site where you can download a very configurable
 firewall great for beginners.

 http://www.pmfirewall.com/PMFirewall/

 --
 Mark

 I love my Linux Box!
 REASON #1 -- ...it's not Windows!
 Registered Linux user #1299563

 On Fri, 23 Jun 2000, Vic wrote:

 Is any firewall just for blocking ports or can it also
 protect the needed open ones like ftp 21 www 80 and so forth?
 

I tried the mentioned firewall and once again I am feeling stupid. I
loaded it and immediately could not get Netscape to load .  It would
stall with only the stop sign and the frame showing.  I then
uninstalled and got my Netscape and mail back.  I must have set a
closed port or deny in the wrong place.  Again the documentation is
not set up for virtual dummies, but only for people who have alot of
experience either with  Linux or as programmers etc.  Anybody know
what a good set of setings would be and still allow Netscape access.
I keep looking for books and online documentation.  Nobody writes
Linux for Idiots, you have to be at least a dummy. "Life is good,
just don't weaken"   Dennis

Registered Linux User  # 180842




Re: [newbie] Ok dumb firewall question time

2000-06-23 Thread Tom Brinkman

On Fri, 23 Jun 2000, you wrote:
 
 I tried the mentioned firewall and once again I am feeling stupid. I
 loaded it and immediately could not get Netscape to load .  It would
 stall with only the stop sign and the frame showing.  I then
 uninstalled and got my Netscape and mail back.  I must have set a
 closed port or deny in the wrong place.  Again the documentation is
 not set up for virtual dummies, but only for people who have alot of
 experience either with  Linux or as programmers etc.  Anybody know
 what a good set of setings would be and still allow Netscape access.

You're doin fine.  You understand it as well as i do, don't
give up. I believe you must've answer'd the "eth0" question right.
 I missed that one the first time, I have a "ppp0"  (dialup).  IIRC,
there's a few more that I changed from just takin the default
answer. I believe both involved unblocking pop3 (mail) and nntp
(news).  Then it all worked !!

  'Bout the only thing I worry about now is I still don't know a
thing about firewalls ;)   but I got one

-- 
~~   Tom Brinkman[EMAIL PROTECTED]