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Groups > comp.os.linux.misc > #12283
| From | Robert Riches <spamtrap42@jacob21819.net> |
|---|---|
| Newsgroups | comp.os.linux.misc |
| Subject | Re: fedora 20 disabling ssh by default |
| Date | 2014-10-11 02:52 +0000 |
| Organization | none-at-all |
| Message-ID | <slrnm3h6qq.960.spamtrap42@one.localnet> (permalink) |
| References | (2 earlier) <m17is4$f22$1@speranza.aioe.org> <m186ko$8na$1@dont-email.me> <slrnm3f8kc.k2m.BitTwister@wb.home.test> <m18un5$la4$4@dont-email.me> <m19s3t$148$1@speranza.aioe.org> |
On 2014-10-11, Bill Cunningham <nospam@nspam.invalid> wrote:
>
> "William Unruh" <unruh@invalid.ca> wrote in message
> news:m18un5$la4$4@dont-email.me...
>> On 2014-10-10, Bit Twister <BitTwister@mouse-potato.com> wrote:
>>> On Fri, 10 Oct 2014 08:50:32 +0000 (UTC), Rich wrote:
>>>>
>>>> That is most likely a brute force password attempt. If you shutdown
>>>> ssh, you'll block the attempts, but also prevent yourself from logging
>>>> in via ssh. So if you log in via ssh, you'll end up shutting yourself
>>>> out as well.
>>>
>>> Just tell your firewall what ip addresses are allowed to connect to sshd.
>>> Tell sshd that root is not allowed to use a password login.
>>> Tell sshd to listen on a different port.
>>>
>>>
>>>> However, if your password is properly random, you have little to worry
>>>> about other than extra entries in your log files.
>>>
>>> Random passwords are easier to crack. Use a funky phrase like
>>> my dog eats concrete.
>>> Feel free to sprinkle in numbers and !@#$%^&*()_+= characters.
>>
>> He did say "properly random". I am sure by properly he did not mean 4
>> random characters. A long enough password with random characters is
>> certainly better than your example which really is not terribly random.
>
> Something generated by uuid would I think be pretty good. Or better yet
> if you could direct something from dev/urandom as text; but I don't know if
> you could do that.
>
> Bill
This works for me:
head -c 16 /dev/random | base64
That gives about 24 characters, including a couple of symbols.
For website passwords, I prefer to copy-paste the password into
the browser, so take a few over a dozen alphanumeric characters
from the above command. In theory, /dev/random could block, but
even if it does, I could just spin the trackball mouse for a few
seconds.
--
Robert Riches
spamtrap42@jacob21819.net
(Yes, that is one of my email addresses.)
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fedora 20 disabling ssh by default "Bill Cunningham" <nospam@nspam.invalid> - 2014-10-09 19:23 -0400
Re: fedora 20 disabling ssh by default Bit Twister <BitTwister@mouse-potato.com> - 2014-10-09 23:35 +0000
Re: fedora 20 disabling ssh by default Baho Utot <baho-utot@columbus.rr.com> - 2014-10-09 20:25 -0400
Re: fedora 20 disabling ssh by default Bit Twister <BitTwister@mouse-potato.com> - 2014-10-10 01:11 +0000
Re: fedora 20 disabling ssh by default William Unruh <unruh@invalid.ca> - 2014-10-10 15:32 +0000
Re: fedora 20 disabling ssh by default Baho Utot <baho-utot@columbus.rr.com> - 2014-10-10 17:59 -0400
Re: fedora 20 disabling ssh by default "Bill Cunningham" <nospam@nspam.invalid> - 2014-10-09 23:13 -0400
Re: fedora 20 disabling ssh by default Rich <rich@example.invalid> - 2014-10-10 08:50 +0000
Re: fedora 20 disabling ssh by default Bit Twister <BitTwister@mouse-potato.com> - 2014-10-10 09:10 +0000
Re: fedora 20 disabling ssh by default The Natural Philosopher <tnp@invalid.invalid> - 2014-10-10 10:16 +0100
Re: fedora 20 disabling ssh by default "Bill Cunningham" <nospam@nspam.invalid> - 2014-10-10 20:05 -0400
Re: fedora 20 disabling ssh by default The Natural Philosopher <tnp@invalid.invalid> - 2014-10-11 07:47 +0100
Re: fedora 20 disabling ssh by default Rich <rich@example.invalid> - 2014-10-10 09:26 +0000
Re: fedora 20 disabling ssh by default The Natural Philosopher <tnp@invalid.invalid> - 2014-10-10 11:00 +0100
Re: fedora 20 disabling ssh by default Bit Twister <BitTwister@mouse-potato.com> - 2014-10-10 10:14 +0000
Re: fedora 20 disabling ssh by default Rich <rich@example.invalid> - 2014-10-10 10:29 +0000
Re: fedora 20 disabling ssh by default "Bill Cunningham" <nospam@nspam.invalid> - 2014-10-10 16:27 -0400
Re: fedora 20 disabling ssh by default William Unruh <unruh@invalid.ca> - 2014-10-10 15:41 +0000
Re: fedora 20 disabling ssh by default "Bill Cunningham" <nospam@nspam.invalid> - 2014-10-10 20:03 -0400
Re: fedora 20 disabling ssh by default John Hasler <jhasler@newsguy.com> - 2014-10-10 20:28 -0500
Re: fedora 20 disabling ssh by default Robert Riches <spamtrap42@jacob21819.net> - 2014-10-11 02:52 +0000
Re: fedora 20 disabling ssh by default William Unruh <unruh@invalid.ca> - 2014-10-11 17:03 +0000
Re: fedora 20 disabling ssh by default "Bill Cunningham" <nospam@nspam.invalid> - 2014-10-11 14:38 -0400
Re: fedora 20 disabling ssh by default Wayne <nospam@all.invalid> - 2014-10-11 18:05 -0400
Re: fedora 20 disabling ssh by default Richard Kettlewell <rjk@greenend.org.uk> - 2014-10-11 23:18 +0100
Re: fedora 20 disabling ssh by default William Unruh <unruh@invalid.ca> - 2014-10-11 23:43 +0000
Re: fedora 20 disabling ssh by default Rich <rich@example.invalid> - 2014-10-11 22:34 +0000
Re: fedora 20 disabling ssh by default Wayne <nospam@all.invalid> - 2014-10-11 19:13 -0400
Re: fedora 20 disabling ssh by default William Unruh <unruh@invalid.ca> - 2014-10-12 00:30 +0000
Re: fedora 20 disabling ssh by default Wayne <nospam@all.invalid> - 2014-10-11 21:27 -0400
Re: fedora 20 disabling ssh by default William Unruh <unruh@invalid.ca> - 2014-10-12 02:14 +0000
Re: fedora 20 disabling ssh by default Rich <rich@example.invalid> - 2014-10-11 03:59 +0000
Re: fedora 20 disabling ssh by default William Unruh <unruh@invalid.ca> - 2014-10-10 15:34 +0000
Re: fedora 20 disabling ssh by default William Unruh <unruh@invalid.ca> - 2014-10-10 15:31 +0000
Re: fedora 20 disabling ssh by default Andreas Kohlbach <oct14.5.ankman@spamgourmet.com> - 2014-10-10 16:06 -0400
Re: fedora 20 disabling ssh by default "Bill Cunningham" <nospam@nspam.invalid> - 2014-10-10 20:00 -0400
Re: fedora 20 disabling ssh by default William Unruh <unruh@invalid.ca> - 2014-10-11 17:02 +0000
Re: fedora 20 disabling ssh by default Andreas Kohlbach <oct14.5.ankman@spamgourmet.com> - 2014-10-11 16:35 -0400
Re: fedora 20 disabling ssh by default HakTar <FiteWinTel@gmail.com> - 2014-10-30 07:34 +0000
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