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serg_sk
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PostPosted: Sat Nov 03, 2007 10:38 am    Post subject: vsftpd anonymous upload Reply with quote

Анонимусы не могут загружать файлы в диру incomming.
Вот мой конфиг:
Code:
listen=YES
listen_address=172.16.23.125
anonymous_enable=YES
local_enable=YES
write_enable=YES
local_umask=002
anon_umask=002
file_open_mode=0777
anon_upload_enable=YES
anon_mkdir_write_enable=YES
anon_other_write_enable=YES
anon_delete_enable=NO
dirmessage_enable=YES
connect_from_port_20=YES
chmod_enable=NO
chown_uploads=YES
chown_username=ftpserg
xferlog_enable=YES
xferlog_file=/var/log/vsftpd.xfer.log
vsftpd_log_file=/var/log/vsftpd.log
idle_session_timeout=600
data_connection_timeout=120
nopriv_user=nobody
ascii_upload_enable=NO
ascii_download_enable=NO
ftpd_banner=Welcome to CrazyNetwork FTP server.
convert_charset_enable=YES
local_charset=UTF8
remote_charset=WIN1251
user_config_dir=/etc/vsftpd/vusers
chroot_local_user=YES
chroot_list_enable=YES
chroot_list_file=/etc/vsftpd/chroot_list
userlist_file=/etc/vsftpd/user_list
userlist_enable=YES
userlist_deny=NO
ls_recurse_enable=NO
setproctitle_enable=YES


Телнечусь на фтп и пробую загрузить файл:
Code:
Trying 172.16.23.125...
Connected to 172.16.23.125.
Escape character is '^]'.
220 Welcome to CrazyNetwork FTP server.
USER anonymous
331 Please specify the password.
PASS *******
230 Login successful.
CWD incomming
250 Directory successfully changed.
PASV
227 Entering Passive Mode (172,16,23,125,98,2)
STOR mysql-5.0.18-win32.zip
500 OOPS: fchown
500 OOPS: priv_sock_get_result
Connection closed by foreign host.


Code:

blackpearl ftp # ls -al
итого 4
drwxr-xr-x  5 root    root       48 Окт 22 04:34 .
drwxr-xr-x  6 root    root       64 Окт 22 20:54 ..
drwxrwx--- 12 ftpserg ftpwrite 4096 Окт 22 04:48 distfiles
drwxrwxrwx  2 ftpserg ftpwrite   35 Окт 24 15:06 incomming
drwxrwxr-x  8 ftpserg ftpwrite   78 Окт 24 14:56 pub


Идеи будут?
P.S. С локальными юзерами все ок. Проблема с chown'ом файлов. Но как ее решить? o_O
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lashzcore
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PostPosted: Wed Nov 07, 2007 9:00 am    Post subject: Reply with quote

в телнет-логе видно, что проблема наступает при операции chown над сохраненнымй файлом. Попробуй в конфиге chownuploads=NO или проверь существоварине юзера "ftpserg".
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serg_sk
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PostPosted: Wed Nov 07, 2007 5:53 pm    Post subject: Reply with quote

ftpserg существует. А chown'ить аплоадс мне нужно )
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PostPosted: Wed Nov 07, 2007 6:54 pm    Post subject: Reply with quote

Попробуй его руками запустить + log_ftp_protocol + syslog_enable сделать - может чего интересного скажет.
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serg_sk
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PostPosted: Wed Nov 07, 2007 10:25 pm    Post subject: Reply with quote

Ничего интересного не сказало :/
Code:
Nov  8 00:23:25 blackpearl vsftpd: Thu Nov  8 00:23:25 2007 [pid 20489] [ftp] FTP command: Client "172.16.23.150", "STOR /incomming/addmoney.php"
Nov  8 00:23:29 blackpearl vsftpd: Thu Nov  8 00:23:29 2007 [pid 20497] CONNECT: Client "172.16.23.150"

Вот STOR, а дальше получаю дисконект и конекчусь снова.
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PostPosted: Fri Nov 09, 2007 7:32 am    Post subject: Reply with quote

strace
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serg_sk
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PostPosted: Sat Nov 10, 2007 8:35 pm    Post subject: Reply with quote

Code:
blackpearl home # strace /usr/sbin/vsftpd /etc/vsftpd/vsftpd.conf
execve("/usr/sbin/vsftpd", ["/usr/sbin/vsftpd", "/etc/vsftpd/vsftpd.conf"], [/* 27 vars */]) = 0
brk(0)                                  = 0x806a000
access("/etc/ld.so.preload", R_OK)      = -1 ENOENT (No such file or directory)
open("/etc/ld.so.cache", O_RDONLY)      = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=21387, ...}) = 0
mmap2(NULL, 21387, PROT_READ, MAP_PRIVATE, 3, 0) = 0xb7f5c000
close(3)                                = 0
open("/lib/libwrap.so.0", O_RDONLY)     = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\220\36"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=26776, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f5b000
mmap2(NULL, 31740, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7f53000
mmap2(0xb7f59000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x5) = 0xb7f59000
close(3)                                = 0
open("/lib/libnsl.so.1", O_RDONLY)      = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\2001\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=79544, ...}) = 0
mmap2(NULL, 92136, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7f3c000
mmap2(0xb7f4f000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x12) = 0xb7f4f000
mmap2(0xb7f51000, 6120, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7f51000
close(3)                                = 0
open("/lib/libpam.so.0", O_RDONLY)      = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\240\31"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=38352, ...}) = 0
mmap2(NULL, 41212, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7f31000
mmap2(0xb7f3a000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x8) = 0xb7f3a000
close(3)                                = 0
open("/lib/libdl.so.2", O_RDONLY)       = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0p\n\0\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=9612, ...}) = 0
mmap2(NULL, 12412, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7f2d000
mmap2(0xb7f2f000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0xb7f2f000
close(3)                                = 0
open("/lib/libresolv.so.2", O_RDONLY)   = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\200!\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=63232, ...}) = 0
mmap2(NULL, 71880, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7f1b000
mmap2(0xb7f29000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0xe) = 0xb7f29000
mmap2(0xb7f2b000, 6344, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7f2b000
close(3)                                = 0
open("/lib/libutil.so.1", O_RDONLY)     = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0P\n\0\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=9624, ...}) = 0
mmap2(NULL, 12432, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7f17000
mmap2(0xb7f19000, 8192, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x1) = 0xb7f19000
close(3)                                = 0
open("/usr/lib/libssl.so.0.9.8", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0`\301\0"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0555, st_size=261956, ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f16000
mmap2(NULL, 260888, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7ed6000
mmap2(0xb7f12000, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x3c) = 0xb7f12000
close(3)                                = 0
open("/usr/lib/libcrypto.so.0.9.8", O_RDONLY) = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0\200\316"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0555, st_size=1335836, ...}) = 0
mmap2(NULL, 1352440, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7d8b000
mmap2(0xb7ebd000, 86016, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x131) = 0xb7ebd000
mmap2(0xb7ed2000, 13048, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7ed2000
close(3)                                = 0
open("/lib/libc.so.6", O_RDONLY)        = 3
read(3, "\177ELF\1\1\1\0\0\0\0\0\0\0\0\0\3\0\3\0\1\0\0\0@a\1\000"..., 512) = 512
fstat64(3, {st_mode=S_IFREG|0755, st_size=1225368, ...}) = 0
mmap2(NULL, 1230288, PROT_READ|PROT_EXEC, MAP_PRIVATE|MAP_DENYWRITE, 3, 0) = 0xb7c5e000
mmap2(0xb7d85000, 12288, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_DENYWRITE, 3, 0x127) = 0xb7d85000
mmap2(0xb7d88000, 9680, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0xb7d88000
close(3)                                = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7c5d000
set_thread_area({entry_number:-1 -> 6, base_addr:0xb7c5dae0, limit:1048575, seg_32bit:1, contents:0, read_exec_only:0, limit_in_pages:1, seg_not_present:0, useable:1}) = 0
mprotect(0xb7d85000, 8192, PROT_READ)   = 0
mprotect(0xb7ebd000, 32768, PROT_READ)  = 0
mprotect(0xb7f12000, 4096, PROT_READ)   = 0
mprotect(0xb7f19000, 4096, PROT_READ)   = 0
mprotect(0xb7f29000, 4096, PROT_READ)   = 0
mprotect(0xb7f2f000, 4096, PROT_READ)   = 0
mprotect(0xb7f3a000, 4096, PROT_READ)   = 0
mprotect(0xb7f4f000, 4096, PROT_READ)   = 0
mprotect(0xb7f59000, 4096, PROT_READ)   = 0
mprotect(0x8061000, 4096, PROT_READ)    = 0
mprotect(0xb7f7d000, 4096, PROT_READ)   = 0
munmap(0xb7f5c000, 21387)               = 0
brk(0)                                  = 0x806a000
brk(0x808b000)                          = 0x808b000
stat64("/etc/vsftpd/vsftpd.conf", {st_mode=S_IFREG|0644, st_size=4644, ...}) = 0
open("/etc/vsftpd/vsftpd.conf", O_RDONLY|O_NONBLOCK|O_LARGEFILE) = 3
fstat64(3, {st_mode=S_IFREG|0644, st_size=4644, ...}) = 0
mmap2(NULL, 16384, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xb7f5e000
mprotect(0xb7f61000, 4096, PROT_NONE)   = 0
mprotect(0xb7f5e000, 4096, PROT_NONE)   = 0
read(3, "#\n# Example vsftpd config file\n#"..., 4644) = 4644
mprotect(0xb7f5e000, 4096, PROT_READ)   = 0
munmap(0xb7f5e000, 16384)               = 0
close(3)                                = 0
getuid32()                              = 0
socket(PF_INET, SOCK_STREAM, IPPROTO_TCP) = 3
setsockopt(3, SOL_SOCKET, SO_REUSEADDR, [1], 4) = 0
rt_sigprocmask(SIG_BLOCK, [CHLD], NULL, 8) = 0
rt_sigaction(SIGCHLD, {0x8056260, ~[RTMIN RT_1], 0}, NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [HUP], NULL, 8) = 0
rt_sigaction(SIGHUP, {0x8056240, ~[RTMIN RT_1], 0}, NULL, 8) = 0
bind(3, {sa_family=AF_INET, sin_port=htons(21), sin_addr=inet_addr("172.16.23.125")}, 16) = 0
listen(3, 32)                           = 0
rt_sigprocmask(SIG_UNBLOCK, [CHLD], NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [HUP], NULL, 8) = 0
accept(3, {sa_family=AF_INET, sin_port=htons(60403), sin_addr=inet_addr("172.16.23.150")}, [16]) = 4
rt_sigprocmask(SIG_BLOCK, [CHLD], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [HUP], NULL, 8) = 0
clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD, child_tidptr=0xb7c5db28) = 8378
close(4)                                = 0
rt_sigprocmask(SIG_UNBLOCK, [CHLD], NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [HUP], NULL, 8) = 0
accept(3, 0xbfb9df34, [28])             = ? ERESTARTSYS (To be restarted)
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, NULL, WNOHANG)              = 8378
waitpid(-1, NULL, WNOHANG)              = -1 ECHILD (No child processes)
sigreturn()                             = ? (mask now [])
rt_sigprocmask(SIG_BLOCK, [CHLD], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [HUP], NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [CHLD], NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [HUP], NULL, 8) = 0
accept(3,  <unfinished ...>

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fank
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PostPosted: Sun Nov 11, 2007 8:18 am    Post subject: Reply with quote

Quote:
strace /usr/sbin/vsftpd /etc/vsftpd/vsftpd.conf

Quote:
--- SIGCHLD (Child exited) @ 0 (0) ---

man strace
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serg_sk
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PostPosted: Mon Nov 12, 2007 10:31 am    Post subject: Reply with quote

ничего интересно там не нашел. Может поможешь, раз такой умный :?
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PostPosted: Mon Nov 12, 2007 1:10 pm    Post subject: Reply with quote

Quote:
Может поможешь, раз такой умный

тот, кто те сказал, что я умный, нагло врет :lol:
просто включи опцию -ff, а еще лучше запусти сабж, потом strace -p PID, потом воспроизводи ошибку
это я к тому, что ребенок умер, а мы этого не видим, здесь только папочкино безобразие =)
если сабж рождает дитенка полноценного с PID'ом, то за ним можно и последить
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serg_sk
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PostPosted: Mon Nov 12, 2007 7:44 pm    Post subject: Reply with quote

Quote:
[pid 12158] fstat64(6, {st_mode=S_IFREG|0664, st_size=0, ...}) = 0
[pid 12158] fchown32(6, 1001, -1) = -1 EPERM (Operation not permitted)
[pid 12158] fcntl64(0, F_GETFL) = 0x2 (flags O_RDWR)
[pid 12158] fcntl64(0, F_SETFL, O_RDWR|O_NONBLOCK) = 0
[pid 12158] write(0, "500 OOPS: ", 10) = 10
[pid 12158] write(0, "fchown", 6) = 6
[pid 12158] write(0, "\r\n", 2) = 2
[pid 12158] exit_group(1) = ?
Process 12158 detached
[pid 12161] <... read resumed> "", 1) = 0
[pid 12161] fcntl64(0, F_GETFL) = 0x802 (flags O_RDWR|O_NONBLOCK)
[pid 12161] fcntl64(0, F_SETFL, O_RDWR|O_NONBLOCK) = 0
[pid 12161] write(0, "500 OOPS: ", 10) = 10
[pid 12161] write(0, "priv_sock_get_result", 20) = 20
[pid 12161] write(0, "\r\n", 2) = 2
[pid 12161] exit_group(1) = ?
Process 12161 detached
<... accept resumed> 0xbfa01d94, [28]) = ? ERESTARTSYS (To be restarted)
--- SIGCHLD (Child exited) @ 0 (0) ---
waitpid(-1, NULL, WNOHANG) = 12158
waitpid(-1, NULL, WNOHANG) = -1 ECHILD (No child processes)
sigreturn() = ? (mask now [])
rt_sigprocmask(SIG_BLOCK, [CHLD], NULL, 8) = 0
rt_sigprocmask(SIG_BLOCK, [HUP], NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [CHLD], NULL, 8) = 0
rt_sigprocmask(SIG_UNBLOCK, [HUP], NULL, 8) = 0

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PostPosted: Tue Nov 13, 2007 9:51 am    Post subject: Reply with quote

Quote:
chown_username=ftpserg

а кем представлен в системе анонимус?
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serg_sk
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PostPosted: Tue Nov 13, 2007 2:21 pm    Post subject: Reply with quote

юзером ftp судя по всему.
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PostPosted: Tue Nov 13, 2007 4:00 pm    Post subject: Reply with quote

значит, насколько я понимаю, при chroot процессе смена владельца локальным юзером в принципе невозможна
Quote:
chroot_local_user=YES

by design
возможно, стоит внимательней прочитать документацию
больше у меня мыслей нету, сорри
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PostPosted: Tue Nov 13, 2007 8:16 pm    Post subject: Reply with quote

Что то знакомое. Это поможет?
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PostPosted: Tue Nov 13, 2007 8:32 pm    Post subject: Reply with quote

fank wrote:
значит, насколько я понимаю, при chroot процессе смена владельца локальным юзером в принципе невозможна
Quote:
chroot_local_user=YES

by design
возможно, стоит внимательней прочитать документацию
больше у меня мыслей нету, сорри

Был переезд на новое железо. На старом все работало отлично. Все перенес, конфиг взял тоже со старого. Врятли тут что-то в конфиге.
calculator хм.. ща погуглим )
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serg_sk
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PostPosted: Tue Nov 13, 2007 9:44 pm    Post subject: Reply with quote

Хм... а собственно где оно в ядре находится? такого модуля у меня нет :/
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PostPosted: Tue Nov 13, 2007 9:49 pm    Post subject: Reply with quote

Code:
# grep -r -i capability --include Makefile /usr/src/linux/
/usr/src/linux/security/Makefile:obj-$(CONFIG_SECURITY_CAPABILITIES)    += commoncap.o capability.o
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serg_sk
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PostPosted: Wed Nov 14, 2007 6:49 pm    Post subject: Reply with quote

Code:
blackpearl linux # grep SECURITY .config.my.new
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_JFS_SECURITY=y
CONFIG_XFS_SECURITY=y
CONFIG_SECURITY=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_NETWORK_XFRM=y
CONFIG_SECURITY_CAPABILITIES=m
CONFIG_SECURITY_ROOTPLUG=m

Code:
blackpearl ~ # modprobe capability
FATAL: Module capability not found.

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Apprentice
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PostPosted: Wed Nov 14, 2007 7:36 pm    Post subject: Reply with quote

Чудес то небывает:
Code:
# modinfo capability
filename:       /lib/modules/2.6.23-gentoo-hg3/kernel/security/capability.ko
license:        GPL
description:    Standard Linux Capabilities Security Module
srcversion:     E3718F19749B3CA54D735BE
depends:        commoncap
vermagic:       2.6.23-gentoo-hg3 mod_unload PENTIUMIII
parm:           disable:To disable capabilities module set disable = 1 (int)
# zgrep CONFIG_SECURITY_CAPABILITIES /proc/config.gz
CONFIG_SECURITY_CAPABILITIES=m
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serg_sk
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PostPosted: Thu Nov 15, 2007 11:17 am    Post subject: Reply with quote

Хм.. очень интересно, если включать
Code:
CONFIG_EXT2_FS_SECURITY=y
CONFIG_EXT3_FS_SECURITY=y
CONFIG_REISERFS_FS_SECURITY=y
CONFIG_JFS_SECURITY=y
CONFIG_XFS_SECURITY=y

то выбирай CONFIG_SECURITY, не выбирай, а я ядро собирается без него.
Короче сделал так:
Code:
# CONFIG_EXT2_FS_SECURITY is not set
# CONFIG_EXT3_FS_SECURITY is not set
# CONFIG_REISERFS_FS_SECURITY is not set
# CONFIG_JFS_SECURITY is not set
# CONFIG_XFS_SECURITY is not set
CONFIG_SECURITY=y
CONFIG_SECURITY_NETWORK=y
CONFIG_SECURITY_NETWORK_XFRM=y
CONFIG_SECURITY_CAPABILITIES=m
CONFIG_SECURITY_ROOTPLUG=m
# CONFIG_SECURITY_SELINUX is not set

Подгрузил capability, но vsftpd все равно ругается. Та же ошибка.
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PostPosted: Thu Nov 15, 2007 11:49 am    Post subject: Reply with quote

Пока идей больше нет :-(
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