Date: Sat, 14 May 2016 13:28:46 -0400 From: Allan Jude <allanjude@freebsd.org> To: freebsd-current@freebsd.org Subject: Re: Issue mentioned on questions list Message-ID: <5737604E.20402@freebsd.org> In-Reply-To: <CAOgwaMvgGhOECb-GbrLsScVTUYBvtyeJQ32N6zBYZM9oS7CkWg@mail.gmail.com> References: <5736A988.5020603@ShaneWare.Biz> <5736AE91.7030108@ShaneWare.Biz> <CAOgwaMvgGhOECb-GbrLsScVTUYBvtyeJQ32N6zBYZM9oS7CkWg@mail.gmail.com>
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On 2016-05-14 08:49, Mehmet Erol Sanliturk wrote: > On Fri, May 13, 2016 at 9:50 PM, Shane Ambler <FreeBSD@shaneware.biz> wrote: > >> I'm not expecting a reply to this, it was something that come up >> discussing building custom kernels. >> >> Just wondering if someone may be interested in looking at the >> possibility of changing username length to a sysctl. >> >> As the number of people using computers is increasing, it is now >> common for web sites/mail servers to use your full email as your >> username, keeping that consistent through all username usage doesn't >> seem like an unreasonable request. I would expect a username length >> sysctl value would only be allowed to be set in the loader.conf at boot >> time, similar to zfs.arc_max >> >> >> > > Over time , I want to generate a FreeBSD live CD/DVD with root/user > password entered on boot ( i.e. , no prerecorded passwords ) from a 2D bar > code or from a USB stick or from an SD card with sufficiently long length > defined in the kernel routines . > > This feature also may be used for remote logins . > > Such a long password generated by a program by random character selection > from a character alphabet is impossible to estimate . > > > This "password name length" feature may also be considered along side with > "user name length" . > > > Mehmet Erol Sanliturk > > > > > >> -------- Forwarded Message -------- >> Subject: Re: Custom kernel for NAT and PF ? >> Date: Sat, 14 May 2016 13:58:56 +0930 >> From: Shane Ambler <FreeBSD@ShaneWare.Biz> >> To: Doug McIntyre <merlyn@geeks.org>, FreeBSD Questions < >> freebsd-questions@freebsd.org> >> >> On 14/05/2016 04:40, Doug McIntyre wrote: >> >>> On Fri, May 13, 2016 at 02:04:55PM +0930, Shane Ambler wrote: >>> >>>> Now you only need to compile a custom kernel if you want to use newer >>>>> >>>> features. >>>> >>> ... >>> >>> Unfortunately, I have two situations where that isn't true. >>> >>> For the first, I wish that just loading the PPS drivers enabled the >>> PPS_SYNC option in the kernel, but it doesn't seem to. (if there is >>> a way to enable 'option PPS_SYNC' with a generic kernel I'd like to know, >>> but my experients didn't lead me that working. I still have to compile >>> the kernel for my GPS connected NTP servers. Which makes me wonder why >>> the PPS drivers are a kernel loadable object. >>> >> >> I would report that as a bug and see if it can be improved. >> >> The second is that the username handling is still limited to 32-bytes, >>> which really cramps my logins for ' >>> billyjoebobuser@somesillydomainname.com' >>> so I have to build a custom kernel with longer usernames patched for >>> the systems that need to deal with system logins like that. >>> >> >> While I don't have that issue, it does sound like an old time >> limitation that should be considered for rework. Maybe it could be >> made into an adjustable sysctl. >> >> -- >> FreeBSD - the place to B...Software Developing >> >> Shane Ambler >> >> _______________________________________________ >> freebsd-current@freebsd.org mailing list >> https://lists.freebsd.org/mailman/listinfo/freebsd-current >> To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" >> > _______________________________________________ > freebsd-current@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" > The maximum length of the password is determined by the hashing algorithm used to hash the password. The now default sha512crypt has no upper limit at all. -- Allan Jude
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