add/remove disks in gmirror
Hi all! I use FreeBSD 6.2 I want to try use gmirror to constract raid5, so I do following: # dd if=/dev/zero of=zero0 bs=1024 count=102400 # dd if=/dev/zero of=zero1 bs=1024 count=102400 # dd if=/dev/zero of=zero2 bs=1024 count=102400 # mdcontrol -a -t vnode zero0 # mdcontrol -a -t vnode zero1 # mdcontrol -a -t vnode zero2 # cat /boot/propeller drive b0 device /dev/md0 drive b1 device /dev/md1 drive b2 device /dev/md2 volume propeller plex org raid5 512k sd drive b0 sd drive b1 sd drive b2 # gvinum create /boot/propeller # newfs /dev/gvinum/propeller # mount /dev/gvinum/propeller mountpoint/ This working excellent, but I want to try what can I do if some of the disk crashed? So, I do following: # gvinum rm b2 # mdcontrol -d -u md2 # dd if=/dev/zero of=zero2 bs=1024 count=102400 # mdcontrol -a -t vnode zero2 So, I see files in mountpoint, but what should I do to attach new disk /dev/md2 into raid5? Perhaps I need to use rebuildparity, but I see following line in man gvinum: All subdisks in the plex must be up for a parity check So, how can I up subdisk? # gvinum l 3 drives: D b2State: down /dev/md2A: 99/99 MB (100%) D b0State: up /dev/md0A: 0/99 MB (0%) D b1State: up /dev/md1A: 0/99 MB (0%) 1 volume: V propeller State: up Plexes: 1 Size: 99 MB 1 plex: P propeller.p0 R5 State: up Subdisks: 2 Size: 99 MB 2 subdisks: S propeller.p0.s0 State: up D: b0 Size: 99 MB S propeller.p0.s1 State: up D: b1 Size: 99 MB -- Sensory yours, Eugene Minkovskii Сенсорно ваш, Евгений Миньковский ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: WiFi ipw howto?
On Sun, Nov 05, 2006 at 07:03:49PM +, Marwan Sultan wrote: Hi, 3945ABG is not supported yet, by any method. not NDIS not any option yet. Also donot try any of the options or drivers in http://damien.bergamini.free.fr/ipw/ it doesnot support 3945ABG even if it says (almost) it supported. Hope someone will showup some day very soon with this driver, as many new laptops specially HP are using it. By the way, is your soundcard driver working? Yes. It's working good with module snd_hda.ko (HP Compaq nc6320 ES479EA has sound card AC97 2.0 compatible) -- Sensory yours, Eugene Minkovskii Сенсорно ваш, Евгений Миньковский ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
WiFi ipw howto?
Hello!
I'm use FreeBSD CURRENT, ${OSVERSION} is 700024
So, I have laptop HP Compaq nc6320 whith WiFi adapter Intel 3945ABG.
When I turning on my WiFi using button on the laptop, I see in
dmesg following:
| # dmesg tail:
| ugen0: Broadcom Corp HP Integrated Module, class 224/1, rev 2.00/1.00, addr
3 on uhub5
Now, I find following site for configure my FreeBSD:
http://damien.bergamini.free.fr/ipw/ipw-freebsd.html
In this site I see that I should build the port net/ipw-firmware.
But I read in /usr/ports/UPDATING:
| 20060418:
| AFFECTS: users of net/{ipw,iwi}-firmware
| AUTHOR: [EMAIL PROTECTED]
|
| Some changes in the way ipw(4) and iwi(4) work lead to fundamental
| changes in ipw-firmware and iwi-firmware ports. Since these drivers
| are now using loadable kernel modules as firmware, two new ports have
| been created: net/ipw-firmware-kmod and net/iwi-firmware-kmod.
|
| You should not be able to install the wrong one since detection is
| based on your FreeBSD version. Trying to install the wrong port will
| result in an error message (port marked as IGNORE).
And when I trying to run make in this port, I get following
error:
| # cd /usr/ports/net/ipw-firmware/
| # make
|
| === ipw-firmware-1.3_8 is now obsolete,
| install net/ipw-firmware-kmod instead.
|
| *** Error code 1
|
| Stop in /usr/ports/net/ipw-firmware.
Ok, now I trying to build ipw-firmware-kmod:
| # cd /usr/ports/net/ipw-firmware-kmod/
| # make
| === ipw-firmware-kmod-1.3_1 needs fresh ipw(4),
| install net/ipw-firmware instead.
| *** Error code 1
|
| Stop in /usr/ports/net/ipw-firmware-kmod.
This looks like a joke... So in the
/usr/ports/net/ipw-firmware-kmod/Makefile I find folliwing lines:
| .if !( ${OSVERSION} ${MIN7OSVERSION} || \
| ( ${OSVERSION} 70 ${OSVERSION} = ${MIN6OSVERSION} ) )
| IGNORE= needs fresh ${DRIVERNAME}(4), install
net/${DRIVERNAME}-firmware instead
| .endif
My ${OSVERSION} is 700024, ${MIN6OSVERSION} and ${MIN7OSVERSION}
are 99. It's seems to me this is a bug, and exclamation
should be removed...
Does anybody know whete I can find FRESH howto about installation
of this drivers? Why I see USB messages about ugen, when I
turning on WiFi adapter? What should I do to configure WiFi?
--
Sensory yours, Eugene Minkovskii
Сенсорно ваш, Евгений Миньковский
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Re: bug in tcpdump?
On Thu, Jun 01, 2006 at 09:15:52PM +0400, Andrew Pantyukhin wrote: On 6/1/06, Eugene M. Minkovskii [EMAIL PROTECTED] wrote: It seems to me that I see a bug in tcpdump(1): option -A working same as -x and don't produce ASCII output. Попробуй так: tcpdump -npx -i iface Thank you, but I don't need a solution. If this is a bug, I'll wrote a pr, If I mistaken, I don't wrote pr. -- Sensory yours, Eugene Minkovskii Сенсорно ваш, Евгений Миньковский ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
bug in tcpdump?
It seems to me that I see a bug in tcpdump(1): option -A working same as -x and don't produce ASCII output. (I use FreeBSD 6.1) -- Sensory yours, Eugene Minkovskii Сенсорно ваш, Евгений Миньковский ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: loose locale after upgrade from 5.4 to 6.1RC2
On Tue, May 02, 2006 at 08:15:06AM +0400, Eugene M. Minkovskii wrote: Hello. I'm cvsuped from FreeBSD 5.4 to 6.1 RC2 and loose my russian locale:( I can't type russian letters and many programs print some warnings about locale. But russian fonts are worked: When I go to other mashine through ssh, I see it. For example: svn report: svn: error: cannot set LC_ALL locale svn: error: environment variable LANG is ru_RU.KOI8-R svn: error: please check that your locale name is correct So, this is my locale: $ locale LANG=ru_RU.KOI8-R LC_CTYPE=ru_RU.KOI8-R LC_COLLATE=ru_RU.KOI8-R LC_TIME=ru_RU.KOI8-R LC_NUMERIC=ru_RU.KOI8-R LC_MONETARY=ru_RU.KOI8-R LC_MESSAGES=ru_RU.KOI8-R LC_ALL= (Same I see on old worked mashine). This is fragment of my rc.conf: font8x14=cp866-8x14 font8x16=cp866b-8x16 font8x8=cp866-8x8 scrnmap=koi8-r2cp866 keymap=ru.koi8-r.win.winkey.kbd (Last line is my own keymap, when I set system keymap through sysinstall, I can't type in russian too --- same effect) environment I set by user class and /etc/login.conf. User has russian class, and in login conf we see: # # Russian Users Accounts. Setup proper environment variables. # russian|Russian Users Accounts:\ :charset=KOI8-R:\ :lang=ru_RU.KOI8-R:\ :tc=default: -- Sensory yours, Eugene Minkovskii Сенсорно ваш, Евгений Миньковский ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] I solve the problem: after cvsup from 5.4 to 6.x and rebuild the world, we MUST recompile many ports including bash. -- Sensory yours, Eugene Minkovskii Сенсорно ваш, Евгений Миньковский ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
loose locale after upgrade from 5.4 to 6.1RC2
Hello. I'm cvsuped from FreeBSD 5.4 to 6.1 RC2 and loose my russian locale :( I can't type russian letters and many programs print some warnings about locale. But russian fonts are worked: When I go to other mashine through ssh, I see it. For example: svn report: svn: error: cannot set LC_ALL locale svn: error: environment variable LANG is ru_RU.KOI8-R svn: error: please check that your locale name is correct So, this is my locale: $ locale LANG=ru_RU.KOI8-R LC_CTYPE=ru_RU.KOI8-R LC_COLLATE=ru_RU.KOI8-R LC_TIME=ru_RU.KOI8-R LC_NUMERIC=ru_RU.KOI8-R LC_MONETARY=ru_RU.KOI8-R LC_MESSAGES=ru_RU.KOI8-R LC_ALL= (Same I see on old worked mashine). This is fragment of my rc.conf: font8x14=cp866-8x14 font8x16=cp866b-8x16 font8x8=cp866-8x8 scrnmap=koi8-r2cp866 keymap=ru.koi8-r.win.winkey.kbd (Last line is my own keymap, when I set system keymap through sysinstall, I can't type in russian too --- same effect) environment I set by user class and /etc/login.conf. User has russian class, and in login conf we see: # # Russian Users Accounts. Setup proper environment variables. # russian|Russian Users Accounts:\ :charset=KOI8-R:\ :lang=ru_RU.KOI8-R:\ :tc=default: -- Sensory yours, Eugene Minkovskii Сенсорно ваш, Евгений Миньковский ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
how to locate file by inode?
Hello! Does anybody know how to locate file by inode? For example, using fstat(1) I see: USER CMD PID FD MOUNT INUM MODE SZ|DV R/W ... user some_program 84130 0 /dev 68 crw--w ttyp0 rw user some_program 84130 1 /usr 595890 -rw-r--r-- 0 w user some_program 84130 2 /dev 68 crw--w ttyp0 rw ... I see that some_program using file whith inode 595890 on mount point /usr like STDOUT. To find it I do following: $ find -x /usr -inum 595890 to find two files: $ find -x /usr \( -inum 595890 -o -inum $other_inum \) -ls but this is too slow. Does any body know other, more directly method? -- Sensory yours, Eugene Minkovskii Сенсорно ваш, Евгений Миньковский ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
mounting UFS under Linux
Hello, please tell me, how can I (if I can) mount UFS2 partition under Linux (I install gentoo Linux 2005.1). -- Sensory yours, Eugene Minkovskii Сенсорно ваш, Евгений Миньковский ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
mplayer broke FreeBSD console
Hello. I'm using mplayer to play audio mp3 files in console WITHOUT X. Console is in VESA_132x50 mode. My mplayer broke console. It seems like symbol \r does not catch properly. But in Rxvt or Xterm all correct. So, I forced to use -quiet option when I use mplayer in console. Versions: MPlayer 1.0pre7-3.4.2 (C) 2000-2005 MPlayer Team CPU: Intel Celeron 2/Pentium III Coppermine,Geyserville (Family: 6, Stepping: 6) Detected cache-line size is 32 bytes CPUflags: MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 0 complied for i386 CPU with extensions MMX MMX2 SSE FreeBSD 5.4-RELEASE-p1 FreeBSD kernel: device sc options SC_HISTORY_SIZE=1000 options SC_PIXEL_MODE -- Sensory yours, Eugene Minkovskii Сенсорно ваш, Евгений Миньковский ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: FreeBSD-newbie!
On Tue, Jul 26, 2005 at 04:38:01PM +0100, lars.lindblad wrote: Hi. My name is Lars and lives in Sweden. I have finally bought FreeBSD 5.2 and the handbook from the FreeBSD-mall. That's great! I've wanted to leave the Windows-world and I have been testing Linux for a few years. But I have some problems with my FreeBSD-installation, and I hope someone here can help me! Facts: FreeBSD5.2 (feb 2004 version), IBM Thinkpad (laptop with 300Mhz Intel II, 96Mb RAM and 20Gb HDD. It seems to me, more wise is to use FreeBSD 5.4 in laptop, because FreeBSD 5.2 was some problems in ACPI. thats problems was fixed in latest releases. 1. Since I have been used to KDE over the years, I have decided to continue with that, but it locks up the entire computer - sometimes when I start KDE, and mostly when I shut it down. Perhaps you should turn off ACPI. First of all try to boot witout ACPI (I don't remember, but it seems to me this is a second item in boot menu), if this bring good resalt to you, go to the /boot/device.hints and add to this file following line: hint.acpi.0.disable=1 2. In frustration over KDE-issues I tested Gnome. Quite pretty Window Manager, but I never got any working keyboard there. Ideas? And can I run KDE-applications in Gnome? I use Kstars a lot. 3. In Sweden we have some exciting extra wovels... but the keymaps never seem to find them. What do I do wrong? What kind of a keyboard do I have on a Thinkpad anyway?! At some configurations I've got the and , but no ~, and of course the opposite has also happened. I think you don't configure your X properly. Perhaps you may copy paste your language settings from Linux, which you tested for a few years. I use WindowMaker and run many KDE and GNOMEs progrums under it. Moreover, I'm a russian user. This is much more hard language for localization, then sweden. We have more then 3 different encodings, more then 2 different input-maps. Um... I think that's all for now. Hope someone can help! Thanks in advance! / Lars ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] -- Sensory yours, Eugene Minkovskii Сенсорно ваш, Евгений Миньковский ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
(fwd) sshd events
Hello. I need fixing in mysql database sshd events: some user try to loggin in from ip xxx.xxx.xxx.xxx and use account xxx. But my /var/log/auth.log has not nessesary information (for example: if I put some users into AllowGroups, in logs I can read something like this: User xxx not allowed because none of user's groups are listed in AllowGroups, and I can't see from what IP I got this request.) Moreover, I think parsing auth.log is not beautelul idea. Can sshd do some actions after he allow or deny connection? Can he run some script with some arguments? -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: FreeBSD 5.x forgetting passwords.
On Mon, May 30, 2005 at 03:53:29PM +0200, Christian Tischler wrote: Eugene M. Minkovskii wrote: On Sun, May 29, 2005 at 10:55:41PM +0200, Christian Tischler wrote: Hi, I am running a FreeBSD 5.1 system and some time ago it startet to forget some user passwords. As the system is now running for over 2 years I cannot imagine any reason why this shound be. Any ideas. root# su user user$ passwd newpasswd newpasswd user$ exit Thanks in advance Christian ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] And how do I do it from remote via ssh? you$ sudo su user or, if you in group wheel, perhaps possible following you$ su user if you are not sudoer and you have not other way to take a root privilegies, you can't be other user. And this is right. In other case anybody can be anybody. thx Christian PS: that was not quite an answer to my question I think, was it? -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: FreeBSD 5.x forgetting passwords.
On Sun, May 29, 2005 at 10:55:41PM +0200, Christian Tischler wrote: Hi, I am running a FreeBSD 5.1 system and some time ago it startet to forget some user passwords. As the system is now running for over 2 years I cannot imagine any reason why this shound be. Any ideas. root# su user user$ passwd newpasswd newpasswd user$ exit Thanks in advance Christian ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
sound absent
Hello people! I'm using HP motherboard with integrated audio chipset, and I made statically kernel. So, I wrote in my kernel configuration: device sound device snd_ich and NO_MODULES=yes in /etc/make.conf. Then I make kernel and reboot. Now I see following: $ dmesg | grep pcm0 pcm0: Intel ICH5 (82801EB) port 0xd400-0xd43f,0xd800-0xd8ff mem 0xfe77b400-0xfe77b4ff,0xfe77b800-0xfe77b9ff irq 17 at device 31.5 on pci0 pcm0: [GIANT-LOCKED] pcm0: Unknown AC97 Codec (id = 0x41445368) pcm0: Intel ICH5 (82801EB) port 0xd400-0xd43f,0xd800-0xd8ff mem 0xfe77b400-0xfe77b4ff,0xfe77b800-0xfe77b9ff irq 17 at device 31.5 on pci0 pcm0: [GIANT-LOCKED] pcm0: Unknown AC97 Codec (id = 0x41445368) I have not idea about why this information present in dmesg two times... But it's not important, perhaps. $ pciconf -lv ... [EMAIL PROTECTED]:31:5: class=0x040100 card=0x218114a4 chip=0x24d58086 rev=0x02 hdr=0x00 vendor = 'Intel Corporation' device = '82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller' class= multimedia subclass = audio ... and finally: $ cat /dev/sndstat FreeBSD Audio Driver (newpcm) Installed devices: pcm0: Intel ICH5 (82801EB) at io 0xfe77b800, 0xfe77b400 irq 17 bufsz 16384 (1p/1r/0v channels duplex default) Great! It seemes to all be okay! But there are silenice in my headphones :( Have you any idea? -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: OpenBSD's pf and traffic
Sorry, it's again I.
So, I was trying to modify my OpenBSD pf brandmauer to collect me
information about traffic. Now I has following rules:
pass out on $ext_if proto tcp all modulate state flags S/SA
pass out on $ext_if proto { udp, icmp } all keep state
So, where could I put label to mark inbound traffic? This traffic
goes into my machine because I use state table.
--
Sensory yours, Eugene Minkovskii
,
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Re: OpenBSD's pf and traffic
On Tue, Mar 22, 2005 at 01:18:27PM +0100, Peter N. M. Hansteen wrote:
Eugene M. Minkovskii [EMAIL PROTECTED] writes:
I'd say something along the lines of
allowed_out = { ssh, domain, http, https, etc... }
pass out on $ext_if proto tcp $allowed_out label allowed-out keep state
you could differentiate among source addresses, for example by
specifying
client1 = { 192.68.n.1, 192.168.n.2 }
client1 = { 192.68.n.3, 192.168.n.4 }
client2_inports = { whatever they need }
pass out on $ext_if from $client1 to any proto tcp $allowed_out \
label client1 keep state
pass out on $ext_if from $client2 to any proto tcp $allowed_out \
label client2-out keep state
pass from any to $client2 $client2_inports label client2-in keep state
and so on. Hope this helps.
Just a moment, does it mean that your last rule allow any
incoming connections from world to clients if thay matched by
client2_inports, ANY, not only connections opened by clients?
Moreover, I read in documentation, that state table reads BEFORE
rules, and connections that opened by clients in first rule:
pass out on $ext_if from $client1 to any proto tcp $allowed_out \
label client2 keep state
whill not marked by label client2-in because thay don't pass to
this rule. Am I right?
--
Sensory yours, Eugene Minkovskii
,
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Re: OpenBSD's pf and traffic
In a word, yes. The 'keep state' in these examples, would AFAIK mean that the counters would keep track of all traffic for a connection, so traffic initiated from the inside would match the pass out rule's counters, while connections opened from the outside would count on the pass in rules. Unfortunely, this mean, that OpenBSD's pf can not measure traffic, because we can not separate incoming and outgoing traffic in bidirectional rule. Or we must not use keep state feature. -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: OpenBSD's pf and traffic
On Tue, Mar 22, 2005 at 02:28:09PM +0100, Peter N. M. Hansteen wrote: Eugene M. Minkovskii [EMAIL PROTECTED] writes: Unfortunely, this mean, that OpenBSD's pf can not measure traffic, because we can not separate incoming and outgoing traffic in bidirectional rule. Or we must not use keep state feature. I think I understand what you mean - you do not want per connection statistics, you want packets passed by direction, regardless of which side initiated the traffic, subdivided by pass rule. At the moment I'm not sure how to put that into pf.conf rules, but you may want to go where the real pf experts hang out - pf@benzedrine.cx - and see if there's an angle we haven't thought of. Yes, now you understand me right. Sorry my bad english :). pf@benzedrine.cx is it mail-list or private e-mail. Does I need to register anywhere before mail to it? -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: OpenBSD's pf and traffic
On Mon, Mar 21, 2005 at 08:54:35AM +0100, Peter N. M. Hansteen wrote: Eugene M. Minkovskii [EMAIL PROTECTED] writes: block in log on $ext_ip inet from any to $ext_ip label $ext_ip pass in on $ext_ip inet from any to $ext_ip port 22 keep sate As you can see, ssh packets match to all rule and pass in because last rule win. Does it mean, that I can't see ssh's packet using command # pfctl -sl here you label the blocked packets but not the ones you pass, which means your ssh packets would count toward the packets passed counter only. And if I use block in log on $ext_ip inet from any to $ext_ip label $ext_ip pass in on $ext_ip inet from any to $ext_ip port 22 keep sate label $ext_ip ... I see label twice ? No. But both rules would increment the $ext_ip counter, which means that your $ext_ip counter would be essentially packet totals. Last matching rule wins (with state instead of sate it would work), so each packet increments the relevant counters only once. I was trying some experiments... It seems to me you are right in all except one: second line don't increase $ext_ip counter, but... add other counter with same name: # pfctl -sr | grep label block in log on $ext_if inet from any to $ext_if label $ext_if block in log quick on $ext_if inet from crackers to $ext_if label $ext_if pass in on $ext_if inet proto tcp from any to $ext_if port = ssh flags S/SA keep state label $ext_if pass in on $ext_if inet proto tcp from any to $ext_if port = smtp flags S/SA keep state label $ext_if pass in on $ext_if inet proto tcp from any to $ext_if port = auth flags S/SA keep state label $ext_if pass in on $ext_if inet proto tcp from any port = ftp-data to $ext_if user = 62 flags S/SA keep state label $ext_if # pfctl -vsl rl0 48703 10 936 rl0 26095 0 0 rl0 25845 776 81479 rl0 29 25 2952 rl0 29 0 0 rl0 29 0 0 But, of course, this output is scriptable. (I can sum this numbers in pyhon or bc) Perhaps you know where I can find workable example of this? Randal Schwartz has a nice article called Monitoring Net Traffic with OpenBSD's Packet Filter at http://www.samag.com/documents/s=9053/sam0403j/0403j.htm Thanks -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
OpenBSD's pf and traffic
Hello! Does any body know, how can I use OpenBSD's pf (packet filter) for determine total traffic volume on network interface? If it's impossible, what facility you recommend me to do this? -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: OpenBSD's pf and traffic
On Sun, Mar 20, 2005 at 05:51:58PM +0100, Peter N. M. Hansteen wrote: Eugene M. Minkovskii [EMAIL PROTECTED] writes: Does any body know, how can I use OpenBSD's pf (packet filter) for determine total traffic volume on network interface? If it's impossible, what facility you recommend me to do this? Various pfctl -s options (eg pfctl -s info) give you counters of bytes and packets passed or blocked. If you use labels in your pass rules, you'll get per label counters as well. Thank you, Peter. So, now I can define rule like block in log on $ext_ip inet from any to $ext_ip label $ext_ip pass in on $ext_ip inet from any to $ext_ip port 22 keep sate As you can see, ssh packets match to all rule and pass in because last rule win. Does it mean, that I can't see ssh's packet using command # pfctl -sl And if I use block in log on $ext_ip inet from any to $ext_ip label $ext_ip pass in on $ext_ip inet from any to $ext_ip port 22 keep sate label $ext_ip ... I see label twice ? Perhaps you know where I can find workable example of this? -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: sshd behaviour
On Wed, Mar 16, 2005 at 10:00:44AM -0600, Nathan Kinkade wrote: As another poster mentioned, the problem is likely related to DNS, and I have experienced it as well. If you are using Privilege Separation, then an sshd process will chroot itself into /var/empty before performing authentication. /var/empty is itself usually empty. One thing you can do is to make the dir /var/empty/etc and then drop a copy of your /etc/hosts file into the newly created /var/empty/etc/ directory. You might want to make sure that the hosts file contains a mapping to the LAN machines which you want to ssh from. Keep in mind that /var/empty has the schg flag set, so you won't be able to copy anything to it without disabling this first. See more at `man chflags`. Try something like this: # chflags -R noschg /var/empty # mkdir /var/empty/etc # cp /etc/hosts /var/empty/etc # chflags -R schg /var/empty This will likely clear up your problem. Nathan Thank you, Nathan. Can I put soft link into /var/empty/etc (this is crossdevice link, and I can't put hard link in it)? And does I realy need -R key in last command which you recomended? This mean that directory /var/empty/etc has schg flag too. Is it nessesery? -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
sshd behaviour
Hi. I see strange to me behaviour of sshd. Please tell me is it bug or feature? I use following network configuration: ######## # LAN # - # gateway # - # router # ######## Gateway machine has sshd. Normally I work from LAN on the gateway good. But when connection with provider's router broken: ###### ## # LAN # - # gateway # -X- # router # ###### ## I can't login from LAN to gateway. Moreover, I can't login from gateway to itself, using loop interface. But other Network servicec working good. For example, I can do # telnet gateway 25 from LAN. Provider's router is default router in /etc/rc.conf. -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
mutt working throu NFS only in read-only
Hello, I have some trouble in NFS configure. I need to read mail through NFS. So I say on the server: [EMAIL PROTECTED] cat /etc/exports: /var/mail 172.16.0.2 On client: [EMAIL PROTECTED] sudo mount_nfs 172.16.0.1:/var/mail ~user/mnt/nfs [EMAIL PROTECTED] ls -l ~user/mnt/nfs ... -rw--- 1 user user 28610895 8 10:06 user ... [EMAIL PROTECTED] mutt -f ~user/mnt/nfs/user All working good, except one: mutt open this mailbox only in read-only variant :( Can I change this? You can see in ls command above --- I can read and write my mailbox. For example, I try to change this file using vim, and have a success == [EMAIL PROTECTED] mutt -v Mutt 1.4.2.1i (2004-02-12) Copyright (C) 1996-2002 Michael R. Elkins and others. Mutt comes with ABSOLUTELY NO WARRANTY; for details type `mutt -vv'. Mutt is free software, and you are welcome to redistribute it under certain conditions; type `mutt -vv' for details. System: FreeBSD 5.3-RELEASE-p5 (i386) [using ncurses 5.2] Compile options: -DOMAIN -DEBUG -HOMESPOOL +USE_SETGID +USE_DOTLOCK +DL_STANDALONE -USE_FCNTL +USE_FLOCK +USE_POP +USE_IMAP -USE_GSS +USE_SSL -USE_SASL +HAVE_REGCOMP -USE_GNU_REGEX +COMPRESSED +HAVE_COLOR +HAVE_START_COLOR +HAVE_TYPEAHEAD +HAVE_BKGDSET +HAVE_CURS_SET +HAVE_META +HAVE_RESIZETERM +HAVE_PGP -BUFFY_SIZE -EXACT_ADDRESS -SUN_ATTACHMENT +ENABLE_NLS -LOCALES_HACK +HAVE_WC_FUNCS +HAVE_LANGINFO_CODESET +HAVE_LANGINFO_YESEXPR +HAVE_ICONV -ICONV_NONTRANS +HAVE_GETSID +HAVE_GETADDRINFO -ISPELL SENDMAIL=/usr/sbin/sendmail MAILPATH=/var/mail PKGDATADIR=/usr/local/share/mutt SYSCONFDIR=/usr/local/etc EXECSHELL=/bin/sh -MIXMASTER To contact the developers, please mail to [EMAIL PROTECTED]. To report a bug, please use the flea(1) utility. vvv.initials 1.3.28.nr.threadcomplete rr.compressed -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: sshd
On Wed, Mar 02, 2005 at 08:00:13AM +0100, Stevan Tiefert wrote: Hello list, when I am watching the /var/log/auth.log I see many missed logins from IP-addresses I never tried to login from. Am I right that they is a hacker trying to login on my mashine, because he was using loginnames I never created on my mashine like patrick, lydia, green, admin, and so on...? With regards Stevan Tiefert It seems to you are right. If you know that you go to you mashine only from one or two IP, you can write it in your firewall. For example, if you use ipfw: ext_if=rl0 trusted_ip=1.2.3.4,3.4.2.1 ipfw add allow tcp from $trusted_ip to me ssh in recv $ext_if ipfw add allow tcp from me ssh to $trusted_ip out xmit $ext_if Or something else. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
crontab synatx
Hello. I put in my crontab following string: # min hour mday month wday command 0 7*/3 * * echo Hello world So, I hope, this command will be workind every third day: 3,6,9,12 etc, because at man crontab we read: man 5 crontab For example, ``0-23/2'' can be used in the hours field to specify command execution every other hour (the alternative in the V7 standard is ``0,2,4,6,8,10,12,14,16,18,20,22''). /man 5 crontab But, my command worked at 28 feb, and 1 march. Other case I type # min hour mday month wday command 0 7*/14 * * echo Hello world And this is work at 15 febr. Is it bug or feature? Perhaps crontab count day of month from zero? If so, when should work command if I type directly number of day: # min hour mday month wday command 0 714 * * echo Hello world And how will be counted months? -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
cna't ssh localhost
Hi, I'm in trubble now, and don't know what to think about... I'm install FreeBDS 5.3. stable from DVD iso. This is fresh system: I'm not recompile the kernel and working with GENERIC kernel. This means that I don't use any firewall and ip filter. Now, I configure net interface in /etc/rc.conf: ... ifconfig_rl0=inet 172.16.0.2 netmask 255.255.255.252 defaultrouter=172.16.0.1 ... then I type following $ ssh 127.0.0.1 But connection hang up, of course, I can't do ssh from gateway (172.16.0.1) to localhost (172.16.0.2) too. # BUT! # If I comment line with defaultrouter in rc.conf: ... ifconfig_rl0=inet 172.16.0.2 netmask 255.255.255.252 #defaultrouter=172.16.0.1 ... and reboot, connecion working good: ssh 127.0.0.1 work, and ssh from gateway to local mashine work good. If I, after that type manually $ sudo route add 0.0.0.0 172.16.0.1 connection to loop interface hangs again. Have you any ideas? -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
can't remove directory
Hi! some months ago I'm install FreeBSD 5.2.1 on my PC. When I do it I set default partition size. For example /var has 256 Mb. After some time I found that It is too small for me. I move a lot of directory to /usr and make symlinks to it: mkdir /usr/var mv /var/tmp /var/mail /var/log /usr/var cd /var ln -s /usr/var/tmp ln -s /usr/var/mail ln -s /usr/var/log All of this working nice, except one: I cant remove /var/tmp. Only rename working. In this directory placed one dyeless directory /var/tmp/temproot/var/empty. How can I remove this directory? I try to fsck -y in single user momde, I trying rm -rf /var/tmp/temproot/var/empty in single user mode with only /var mounted. But All of this useful. -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: sendmail and mbox permissions
On Thu, Jan 06, 2005 at 12:14:05AM +0100, J65nko BSD wrote: On Wed, 5 Jan 2005 23:23:29 +0300, Eugene M. Minkovskii [EMAIL PROTECTED] wrote: Hi. I use FreeBSD 5.3 and sendmail. When root rechieve the mail, mailbox's (/var/mail/root) permission bits has been setted to 600. Who and how it does? Can I change this behavior? -- For security reasons, the root account should not receice any mail. One of sendmail's alternatives qmail will even NEVER send any mail to the root account. Enter an alias for root in /etc/mail/aliases and run the newaliases command. Yes, I know this reasons, but I want to know what happens. Who change permissions on /var/mail/root. Why I see it in FreeBSD 5.3 and don't see in FreeBSD 5.2.1? What do you mean don't rechive any mail? mach daemond, mail to root they reports and I want easy way to reading it. -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: can't remove directory
On Thu, Jan 06, 2005 at 01:03:31AM -0800, Ted Mittelstaedt wrote: What is the error message when you: cd /var/tmp rm -r temproot as the root user? Ted Sorry Ted. System write Operation not permitted: rm: /var/old-tmp/temproot/var/empty: Operation not permitted rm: /var/old-tmp/temproot/var: Directory not empty rm: /var/old-tmp/temproot: Directory not empty rm: /var/old-tmp: Directory not empty -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Eugene M. Minkovskii Sent: Thursday, January 06, 2005 12:55 AM To: freebsd-questions@freebsd.org Subject: can't remove directory Hi! some months ago I'm install FreeBSD 5.2.1 on my PC. When I do it I set default partition size. For example /var has 256 Mb. After some time I found that It is too small for me. I move a lot of directory to /usr and make symlinks to it: mkdir /usr/var mv /var/tmp /var/mail /var/log /usr/var cd /var ln -s /usr/var/tmp ln -s /usr/var/mail ln -s /usr/var/log All of this working nice, except one: I cant remove /var/tmp. Only rename working. In this directory placed one dyeless directory /var/tmp/temproot/var/empty. How can I remove this directory? I try to fsck -y in single user momde, I trying rm -rf /var/tmp/temproot/var/empty in single user mode with only /var mounted. But All of this useful. -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED] -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: can't remove directory
On Thu, Jan 06, 2005 at 05:20:55AM -0500, Chuck Swiger wrote: Eugene M. Minkovskii wrote: On Thu, Jan 06, 2005 at 01:03:31AM -0800, Ted Mittelstaedt wrote: What is the error message when you: [ ...steps removed... ] Sorry Ted. System write Operation not permitted: rm: /var/old-tmp/temproot/var/empty: Operation not permitted rm: /var/old-tmp/temproot/var: Directory not empty rm: /var/old-tmp/temproot: Directory not empty rm: /var/old-tmp: Directory not empty Ah, what's happened is that the system immutable flag has been set on that directory. You'll need to do: chflags -R noschg /var/old-tmp rm -rf /var/old-tmp Thank you, Chuck. It's work. -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
sendmail and mbox permissions
Hi. I use FreeBSD 5.3 and sendmail. When root rechieve the mail, mailbox's (/var/mail/root) permission bits has been setted to 600. Who and how it does? Can I change this behavior? -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: Something wrong in stable 5.3?
On Fri, Dec 31, 2004 at 05:44:51AM -0600, Nikolas Britton wrote: Peter Ulrich Kruppa wrote: On Thu, 30 Dec 2004, Tom Connolly wrote: Eugene M. Minkovskii wrote: Hi! I'm confusing now: about a month ago I have upgrated from FreeBSD 5.2.1 to stable 5.3. Since this moment strange things have been happens on my PC. Usually system works Ok, and can be run as long as I need without errors. But sometime, (after a little time after the boot) all begin crashed (core dump --- signal 11). Crashed base utility, like `cat', `sh' etc. Today I have cvsup'ed to stable 5.3 again, and build world again, but problem don't go away. I don't understand what I should do to detect source of problem... Have you any idea? Check the power supply. ... and your hard disk. You have some kind of hardware problem. Regards, Uli. What do you mean by stable 5.3 if you are tracking 5-STABLE (RELENG_5) then this could be the problem. If you are change cvsup to RELENG_5_3 and try again, if you are tracking RELENG_5_3 then yes I'd say it was a hardware problem too. Power supply, Ram, or something overheating are likely suspects for random problems. Thanks, may problem not in hard or fan. Because 5.2.1 I using whell. About stable 5.3 I mean tag=RELENG_5 So do you mean RELENG_5 and RELENG_5_3are different branches? -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Something wrong in stable 5.3?
Hi! I'm confusing now: about a month ago I have upgrated from FreeBSD 5.2.1 to stable 5.3. Since this moment strange things have been happens on my PC. Usually system works Ok, and can be run as long as I need without errors. But sometime, (after a little time after the boot) all begin crashed (core dump --- signal 11). Crashed base utility, like `cat', `sh' etc. Today I have cvsup'ed to stable 5.3 again, and build world again, but problem don't go away. I don't understand what I should do to detect source of problem... Have you any idea? -- Sensory yours, Eugene Minkovskii , ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
how to create /dev/fd/# ?
Hi! I'm working under FreeBSD 5.2.1 I was trying to create if-filter for /etc/printcap. So, I writing some frome handbook: exec 31 12 /usr/local/bin/gs -dSAFER -dNOPAUSE -q -sDEVICE=$GS_DEVICE \ -sOutputFile=/dev/fd/3 - -c quit but, It's does not work --- there not device /dev/fd/3. Whn I type in Linux exec 31 in /dev/fd creating new node --- /dev/fd/3. But not in FreeBSD! Now I am using temporary some work around for my printcap: /usr/local/bin/gs -dSAFER -dNOPAUSE -q -sDEVICE=$GS_DEVICE \ -sOutputFile=- - -c quit Who can tell me: why I can't create /dev/fd/3 (evenly under root!), and what shell I do for create this? -- Sensory yours, Eugene Minkovskii , ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: how to create /dev/fd/# ?
On Sun, Nov 14, 2004 at 09:37:44PM +0100, Svein Halvor Halvorsen wrote: [Eugene M. Minkovskii, 2004-11-14] Who can tell me: why I can't create /dev/fd/3 (evenly under root!), and what shell I do for create this? see fdescfs(5) Ok, I was reading this, and what? What shell I do in the bash? -- Sensory yours, Eugene Minkovskii , ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
sane-plustek backend does not work
Hello! I using FreeBSD 5.2.1 and try to use scanner: Cannon LIDE 30. it is USB scanner. so, I compile kernel with # USB support device uhci# UHCI PCI-USB interface device ohci# OHCI PCI-USB interface device usb # USB Bus (required) device ugen# Generic device uhid# Human Interface Devices device ukbd# Keyboard device ulpt# Printer device umass # Disks/Mass storage - Requires scbus and da device ums # Mouse device uscanner# Scanners after that I compile sane-backend port Now, when I attach the scanner I can see: # dmesg|tail ugen0: Canon CanoScan, rev 1.10/1.00, addr 2 == success, thinking I. # sane-find-scanner -q found USB scanner (vendor=0x04a9, product=0x220e) at libusb:/dev/usb2:/dev/ugen0 == success, thinking I. == moreover, in man sane-plustek we can read thet Canon has == vendor code 0x04a9, and LIDE 30 has product id 0x220e. Right! # vim /usr/local/etc/sane.d/plustek.conf == In this file I comment all and write: == [usb] 0x04a9 0x220e == devices /dev/ugen0 # scanimage -L No scanners were identified. If you were expecting something different, check that the scanner is plugged in, turned on and detected by the sane-find-scanner tool (if appropriate). Please read the documentation which came with this software (README, FAQ, manpages). == Oops! All of my efforts to edit /usr/local/etc/sane.d/plustek.conf, does not lead success. -- Sensory yours, Eugene Minkovskii , ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: sane-plustek backend does not work
On Thu, Nov 04, 2004 at 08:34:38PM +0100, [EMAIL PROTECTED] wrote: On Thu, Nov 04, 2004 at 08:30:23PM +0300, Eugene M. Minkovskii wrote: Hello! I using FreeBSD 5.2.1 and try to use scanner: Cannon LIDE 30. it is USB scanner. Here's my setup for the LIDE 30: /usr/local/etc/sane.d/plustek.conf: --- # Plustek-SANE Backend configuration file # For use with LM9831/2/3 based USB scanners [usb] 0x04A9 0x220E option lampOff 120 .skiped. device /dev/uscanner0 Thank's. All of instrucktions looks good, but when I do it it's breaks :(. I think may be I have wrong kernel? I have done static kernel with no modules. cat /etc/make.conf .. NO_MODULES=yes .. perhaps it may be important? -- Sensory yours, Eugene Minkovskii , ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: sane-plustek backend does not work
On Thu, Nov 04, 2004 at 05:29:19PM -0700, Warren Block wrote: On Thu, 4 Nov 2004, Eugene M. Minkovskii wrote: I using FreeBSD 5.2.1 and try to use scanner: Cannon LIDE 30. it is USB scanner. so, I compile kernel with # USB support device uscanner# Scanners after that I compile sane-backend port Now, when I attach the scanner I can see: # dmesg|tail ugen0: Canon CanoScan, rev 1.10/1.00, addr 2 == success, thinking I. ugen0 instead of uscanner0 means it is not seeing it as a scanner, just an unidentified USB device. 5.2.1 may not have had IDs for this scanner; see if /usr/src/sys/dev/usb/usbdevs.h contains this line (which will probably wrap when viewed): #define USB_PRODUCT_CANON_N1240U 0x220e /* CanoScan N1240U */ If it does have that line, try a kernel recompile and reinstall again. Otherwise, maybe a cvsup to 5.3 is in order. -Warren Block * Rapid City, South Dakota USA This line allready present in my /usr/src/sys/dev/usb/usbdevs.h, and I was compiled my kernel about a week ago. Do you think I need some patch? -- Sensory yours, Eugene Minkovskii , ___ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to [EMAIL PROTECTED]
cdda2wav: Fatal error: did not drop root privilege
My cdda2wav did not work under user (but work under root).
I was trying to set suid bit but don't take success. What do yuo
think about?
--- begin paste of my tty -
[emin:~]$ cat /etc/fbtab
/dev/ttyv0 0660 /dev/fd0:/dev/acd0
[emin:~]$ ll /dev/{a,}cd0
crw-rw 1 emin emin4, 12 10 19:24 /dev/acd0
crw-r- 1 root operator4, 20 10 19:24 /dev/cd0
[emin:~]$ id
uid=1001(emin) gid=1001(emin) groups=1001(emin), 5(operator)
## So you can see: I am in operator group
[emin:~]$ sudo chmod 4110 /usr/local/bin/cdda2wav
[emin:~]$ ll /usr/local/bin/cdda2wav
---s--x--- 1 root operator 240964 6 2003
/usr/local/bin/cdda2wav*
[12:49:01]0[emin:~]$ /usr/local/bin/cdda2wav -B
Type: ROM, Vendor 'TEAC' Model 'CD-552E ' Revision
'1.00' MMC+CDDA
266240 bytes buffer memory requested, 4 buffers, 27 sectors
...
percent_done:
0%Fatal error: did not drop root privilege.
0%child reader sem request failed
W Child exited with 2
[emin:~]$
--- end paste of my tty -
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