Óñòàíîâêà è íàñòðîéêà NFS, VPN, FTP è WEB ñåðâåðà íà RT-N66U

**ryzhov_al** · 23-01-2013, 19:34

Õî÷ó îòêàçàòüñÿ îò USB-íîñèòåëÿ íà RT-N66U çàìåíèâ åãî NFS-øàðîé NAS'a. Ðåøèë ïðîòåñòèðîâàòü óñòîé÷èâîñòü ñâÿçêè è íàòêíóëñÿ íà õîðîøî âîñïðîèçâîäèìóþ ïðîáëåìó: ïðè ïîïûòêå ñêîïèðîâàòü áîëüøîé ôàéë êîìàíäîé dd íà NFS-øàðó ðîóòåð ñðàçó ïîñëå îêîí÷àíèÿ êîïèðîâàíèÿ óõîäèò â ðåáóò. Âûâîä top â ìîìåíò ïåðåä ðåáóòîì:

Code:

Mem: 154836K used, 85032K free, 0K shrd, 64K buff, 130424K cached
CPU:   2% usr  42% sys   0% nic  14% idle  13% io   0% irq  25% sirq
Load average: 2.28 1.07 0.42 2/66 1017
  PID  PPID USER     STAT   VSZ %MEM %CPU COMMAND
 1017   692 admin    D     1056   0%  29% dd if=/dev/zero of=/tmp/mnt/MBL/Router
 1012     2 admin    SW<      0   0%  29% [rpciod/0]
   51     2 admin    SW       0   0%  14% [pdflush]
  772     1 admin    S     3420   1%   0% apcupsd
 1015   952 admin    R     1620   1%   0% top
…

Èíôîðìàöèÿ î ðîóòåðå (NFS-êëèåíòå):

Code:

# mount
…
192.168.0.2:/nfs on /tmp/mnt/MBL type nfs (rw,vers=3,rsize=8192,wsize=8192,soft,intr,proto=udp,timeo=7,retrans=3,sec=sys,addr=192.168.0.2)
# opkg list_installed | grep portmap
portmap - 6.0-3
# lsmod
Module                  Size  Used by    Tainted: P
nfs                   290448  1
lockd                  76048  2 nfs
sunrpc                187280  3 nfs,lockd
…

Èíôîðìàöèÿ î NAS'å (NFS-ñåðâåðå):

Code:

MyBookLive:~# cat /etc/exports
/nfs *(rw,all_squash,sync,no_subtree_check,insecure,anonuid=500,anongid=1000)

MyBookLive:~# nfsstat
Server rpc stats:
calls      badcalls   badauth    badclnt    xdrcall
361672     0          0          0          0

Server nfs v3:
null         getattr      setattr      lookup       access       readlink
10        0% 613       0% 54        0% 554       0% 276       0% 1         0%
read         write        create       mkdir        symlink      mknod
158963   43% 200215   55% 30        0% 25        0% 1         0% 0         0%
remove       rmdir        rename       link         readdir      readdirplus
0         0% 6         0% 0         0% 0         0% 62        0% 0         0%
fsstat       fsinfo       pathconf     commit
182       0% 15        0% 0         0% 665       0%

Client rpc stats:
calls      retrans    authrefrsh
0          0          0

Ïðîñòîå êîïèðîâàíèå ôàéëîâ íà NFS-øàðó NAS'a ê ðåáóòó íå ïðèâîäèò, äëÿ âîñïðîèçâåäåíèÿ ïðîáëåìû íà ðîóòåðå íåîáõîäèìî âûïîëíèòü:

Code:

# dd if=/dev/zero of=/tmp/mnt/MBL/Router/nonsense.swp count=1024K

È ïîñëåäíåå: êòî-íèáóäü èñïîëüçóåò NFS-øàðó äëÿ ñêà÷èâàíèÿ íà íå¸ òîððåíòîâ? Èëè ëó÷øå íå ïûòàòüñÿ?

**lly** · 24-01-2013, 06:10

Originally Posted by ryzhov_al

Õî÷ó îòêàçàòüñÿ îò USB-íîñèòåëÿ íà RT-N66U çàìåíèâ åãî NFS-øàðîé NAS'a. Ðåøèë ïðîòåñòèðîâàòü óñòîé÷èâîñòü ñâÿçêè è íàòêíóëñÿ íà õîðîøî âîñïðîèçâîäèìóþ ïðîáëåìó: ïðè ïîïûòêå ñêîïèðîâàòü áîëüøîé ôàéë êîìàíäîé dd íà NFS-øàðó ðîóòåð ñðàçó ïîñëå îêîí÷àíèÿ êîïèðîâàíèÿ óõîäèò â ðåáóò.

Ñêîðåå âñåãî áàãà â ÿäðå. Îôèöèàëêó ëå÷èòü íà òàêîì óðîâíå ïî÷òè íåêîìó, íó è áåç òåêñòà Oops âîîáùå íèêòî íå âîçüì¸òñÿ.

**ryzhov_al** · 24-01-2013, 06:40

Originally Posted by lly

Ñêîðåå âñåãî áàãà â ÿäðå. Îôèöèàëêó ëå÷èòü íà òàêîì óðîâíå ïî÷òè íåêîìó, íó è áåç òåêñòà Oops âîîáùå íèêòî íå âîçüì¸òñÿ.

Äàæå åñëè âûâàëþ ñþäà òåêñò kernel panic, çàëå÷èâàòü ÿäðî ïî òâîèì ðåêîìåíäàöèÿì ïðèä¸òñÿ ìíå. À ó ìåíÿ òîëüêî íåäàâíî áûëà íåñ÷àñòíàÿ ëþáîâü ñ ÿäðîì, Âëàä â êóðñå. ß ê íîâûì îòíîøåíèÿì ïîêà íå ãîòîâ, ðàíî

Ïëþñ ê òîìó, ñêîðîñòü ïåðåäà÷è ïî NFS ó ìåíÿ ïîëó÷èëàñü ñîèçìåðèìà ñ SAMBA'îé — 12-15Ìáàéò/c. ß îæèäàë êóäà áîëüøåãî.

Âîïðîñ (ïîêà) çàêðûò.

**masterlan** · 01-02-2013, 05:01

Ïîðò òî ïîÿâèòüñÿ, íî 80-ûé ïðè ýòîì ðàçâå îñâîáîäèòñÿ ?

**ryzhov_al** · 01-02-2013, 05:26

Originally Posted by masterlan

Ïîðò òî ïîÿâèòüñÿ, íî 80-ûé ïðè ýòîì ðàçâå îñâîáîäèòñÿ ?

Îñâîáîäèòñÿ:

Code:

# lsof -a -i -c httpd
COMMAND PID  USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
httpd   751 admin    7u  inet   1862      0t0  TCP *:50080 (LISTEN)
# lsof -a -i -c lighttpd
COMMAND  PID  USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
lighttpd 914 admin    7u  inet   2198      0t0  TCP *:www (LISTEN)

**masterlan** · 01-02-2013, 06:41

À â êîíòåêñòå "*:www (LISTEN)" , ÷åìó www=?

**ryzhov_al** · 01-02-2013, 07:20

Originally Posted by masterlan

À â êîíòåêñòå "*:www (LISTEN)" , ÷åìó www=?

Code:

# grep www /etc/services
www 80/tcp http
www 80/udp

**masterlan** · 01-02-2013, 07:53

Íó òàê, à ÷òî òîãäà îçíà÷àåò "(LISTEN)" ?
Åãî âåäü ïðîäîëæàþò "ñëóøàòü".
Òàê ïî÷åìó îí ñâîáîäåí ?

**ryzhov_al** · 11-02-2013, 13:03

Ýðèê ïèëèò ýêñïîðò NFS-øàð èç âåá-èíòåðôåéñà. Ñáîðêó nfs-utils + portmap + nfsd âçÿë ó íàñ

)

**ryzhov_al** · 10-03-2013, 10:31

Originally Posted by lly

Ñêîðåå âñåãî áàãà â ÿäðå. Îôèöèàëêó ëå÷èòü íà òàêîì óðîâíå ïî÷òè íåêîìó, íó è áåç òåêñòà Oops âîîáùå íèêòî íå âîçüì¸òñÿ.

Ñïàÿë êîíñîëü, îòëîâèë kernel panic. Îíà âîçíèêàåò ðîâíî â ìîìåíò çàâåðøåíèÿ êîìàíäû

Code:

dd if=/dev/zero of=/tmp/mnt/NFS_SHARE/Router/nonsense.swp count=1024K

ïðè count=100K (50 ìåãàáàéò) ïàíèêè íå áûâàåò. Ïðè count=1024K (512Ìá) è áîëåå — ïàíèêà âñåãäà:

Code:

Kernel bug detected[#1]:
Cpu 0
$ 0   : 00000000 7f80ea90 00000001 87c33e28
$ 4   : 875749a0 87c33e2c 000026e1 00000001
$ 8   : 00000001 00000021 87d8a2c8 87d8a248
$12   : 87c33e28 00000000 87d8a1b8 00000000
$16   : 875749a0 000026e0 00000000 ffffffff
$20   : 80314960 80322f1c 8777d128 87c33e28
$24   : 00000001 00000110
$28   : 87c32000 87c33e10 800f50e8 c03da020
Hi    : 0000039c
Lo    : 00024479
epc   : c03da044 nfs_sync_mapping_wait+0x13c/0x47c [nfs]     Tainted: P
ra    : c03da020 nfs_sync_mapping_wait+0x118/0x47c [nfs]
Status: 1100fc03    KERNEL EXL IE
Cause : 00000034
PrId  : 00019749
Modules linked in: nfs lockd sunrpc usbhid hid input_core ipt_set ip_set_iphash ip_set_nethash ip_set ipt_REDIRECT nf_nat_ftp nf_conntrack_ftp ip6table_filter ip6table_mangle zaurus rndis_host net1080 cdc_ether asix usbnet usblp ohci_hcd ehci_hcd ufsd(P) vfat fat ext2 ext3 jbd mbcache usb_storage sg sd_mod scsi_wait_scan scsi_mod usbcore jffs2 zlib_inflate zlib_deflate nf_nat_pptp nf_conntrack_pptp nf_nat_proto_gre nf_conntrack_proto_gre nf_nat_sip nf_conntrack_sip nf_nat_h323 nf_conntrack_h323 wl(P) igs(P) emf(P) bcm57xx et(P)
Process dd (pid: 6830, threadinfo=87c32000, task=877cc000)
Stack : 8777d168 8777d200 00420000 00421000 00000000 00420000 875749a0 87c33e2c
        87c33e2c 80310000 00000000 00000000 00000000 00000000 8777d168 00000000
        87c33e2c 00000000 00000000 8777d200 87c33e90 0041e818 00420000 00421000
        00420000 00420000 00420000 c03db1e4 00420000 00420000 0041e614 2ab3fdb8
        8774cda0 00000001 00000000 7ffffb39 00000000 00000000 00000000 00000000
        ...
Call Trace:
[<c03da044>] nfs_sync_mapping_wait+0x13c/0x47c [nfs]
[<c03db1e4>] nfs_wb_all+0x94/0xec [nfs]
[<c03cc9d4>] nfs_file_flush+0x88/0xe4 [nfs]
[<80079908>] filp_close+0x44/0xb0
[<8007b39c>] sys_close+0xa4/0xe4
[<800114a4>] stack_done+0x20/0x40


Code: 8e020028  38420001  30420001 <00028036> 8e030024  106000ab  3c03c040  8e820008  7c420440
Fatal exception: panic in 5 seconds
Kernel panic - not syncing: Fatal exception
Rebooting in 3 seconds..Please stand by while rebooting the system...

**lly** · 10-03-2013, 14:09

Originally Posted by ryzhov_al

Ñïàÿë êîíñîëü, îòëîâèë kernel panic. Îíà âîçíèêàåò ðîâíî â ìîìåíò çàâåðøåíèÿ êîìàíäû

Code:

dd if=/dev/zero of=/tmp/mnt/NFS_SHARE/Router/nonsense.swp count=1024K

ïðè count=100K (50 ìåãàáàéò) ïàíèêè íå áûâàåò. Ïðè count=1024K (512Ìá) è áîëåå — ïàíèêà âñåãäà:

Ìäà, ïîîáåùàë õàëÿâó, à îíà òàêîâîé íå ÿâëÿåòñÿ

Ïîõîæå íà áàãè:
https://bugs.launchpad.net/ubuntu/+s...ux/+bug/561210
https://bugs.launchpad.net/ubuntu/+s...ux/+bug/585657
Íî íàäî ñìîòðåòü ÷òî óæå áýêïîðòèðîâàíî â îôèöèàëêó.

Êàê ïðîýêñïîðòèðîâàí òîì (NFSv3, NFSv4 è ïðî÷èå îïöèè)? Îïöèè ìîíòèðîâàíèÿ íà ðîóòåðå?

**ryzhov_al** · 10-03-2013, 15:10

Originally Posted by lly

Êàê ïðîýêñïîðòèðîâàí òîì (NFSv3, NFSv4 è ïðî÷èå îïöèè)?

Ñåðâåð, NAS:

Code:

MyBookLive:~# cat /etc/exports
/nfs *(rw,all_squash,sync,no_subtree_check,insecure,anonuid=500,anongid=1000)
MyBookLive:~# nfsstat --server --nfs -2
Server nfs v2:
null         getattr      setattr      root         lookup       readlink
0         0% 0         0% 0         0% 0         0% 0         0% 0         0%
read         wrcache      write        create       remove       rename
0         0% 0         0% 0         0% 0         0% 0         0% 0         0%
link         symlink      mkdir        rmdir        readdir      fsstat
0         0% 0         0% 0         0% 0         0% 0         0% 0         0%

MyBookLive:~# nfsstat --server --nfs -3
Server nfs v3:
null         getattr      setattr      lookup       access       readlink
21        0% 351       0% 148       0% 328       0% 279       0% 2         0%
read         write        create       mkdir        symlink      mknod
22416    25% 52539    60% 27        0% 13        0% 1         0% 0         0%
remove       rmdir        rename       link         readdir      readdirplus
26        0% 13        0% 0         0% 0         0% 41        0% 0         0%
fsstat       fsinfo       pathconf     commit
9834     11% 31        0% 0         0% 460       0%

MyBookLive:~# nfsstat --server --nfs -4
Server nfs v4:
null         compound
0         0% 0         0%

Server nfs v4 operations:
op0-unused   op1-unused   op2-future   access       close        commit
0         0% 0         0% 0         0% 0         0% 0         0% 0         0%
create       delegpurge   delegreturn  getattr      getfh        link
0         0% 0         0% 0         0% 0         0% 0         0% 0         0%
lock         lockt        locku        lookup       lookup_root  nverify
0         0% 0         0% 0         0% 0         0% 0         0% 0         0%
open         openattr     open_conf    open_dgrd    putfh        putpubfh
0         0% 0         0% 0         0% 0         0% 0         0% 0         0%
putrootfh    read         readdir      readlink     remove       rename
0         0% 0         0% 0         0% 0         0% 0         0% 0         0%
renew        restorefh    savefh       secinfo      setattr      setcltid
0         0% 0         0% 0         0% 0         0% 0         0% 0         0%
setcltidconf verify       write        rellockowner bc_ctl       bind_conn
0         0% 0         0% 0         0% 0         0% 0         0% 0         0%
exchange_id  create_ses   destroy_ses  free_stateid getdirdeleg  getdevinfo
0         0% 0         0% 0         0% 0         0% 0         0% 0         0%
getdevlist   layoutcommit layoutget    layoutreturn secinfononam sequence
0         0% 0         0% 0         0% 0         0% 0         0% 0         0%
set_ssv      test_stateid want_deleg   destroy_clid reclaim_comp
0         0% 0         0% 0         0% 0         0% 0         0%
MyBookLive:~# cat /var/log/messages
…
Mar  3 23:21:33 MyBookLive kernel: Linux version 2.6.32.11-svn70860 (steveh@steveh-pc) (gcc version 4.2.2) #1 Thu May 17 13:32:51 PDT 2012
…
Mar  3 23:21:33 MyBookLive kernel: NET: Registered protocol family 1
Mar  3 23:21:33 MyBookLive kernel: RPC: Registered udp transport module.
Mar  3 23:21:33 MyBookLive kernel: RPC: Registered tcp transport module.
Mar  3 23:21:33 MyBookLive kernel: RPC: Registered tcp NFSv4.1 backchannel transport module.
…
Mar  3 23:21:33 MyBookLive kernel: Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
…

Ñòàíäàðòíàÿ Debian Lenny (5.0) äëÿ PowerPC. Åñëè âûäðàòü èç ñòàðòîâûõ ñêðèïòîâ ïîñëåäîâàòåëüíîñòü ñòàðòà ñåðâåðà, òî ïîëó÷èòñÿ ÷òî-òî âðîäå:

Code:

rpc.statd
modprobe nfsd
nfsd /proc/fs/nfsd
exportfs -r
rpc.nfsd

Originally Posted by lly

Îïöèè ìîíòèðîâàíèÿ íà ðîóòåðå?

Íèêàêèõ:

Code:

admin@RT-N66U:/tmp/home/root# cat /opt/etc/init.d/S01firmware_nfs
#!/bin/sh

prefix="/opt"
PATH=${prefix}/bin:${prefix}/sbin:/sbin:/bin:/usr/sbin:/usr/bin
        mountPoint=/tmp/mnt/MBL

start() {
        if [ ! -d "$mountPoint" ]; then
                mkdir $mountPoint
        fi
        portmap
        mount -t nfs 10.9.68.7:/nfs/Tank/Soft/Router $mountPoint
        }

stop() {
        umount $mountPoint
        killall portmap
        }

status() {
…

Ìíå äàæå ìîäóëè

Code:

admin@RT-N66U:/tmp/home/root# lsmod | grep -E "Module|nfs"
Module                  Size  Used by    Tainted: P
nfs                   292240  1
lockd                  77264  2 nfs
sunrpc                193616  3 nfs,lockd

ïîäãðóæàòü íå ïðèõîäèòñÿ, îíè óæå ïîäãðóæåíû ïðè ñòàðòå ðîóòåðà.

**lly** · 10-03-2013, 16:12

Originally Posted by ryzhov_al

Ñòàíäàðòíàÿ Debian Lenny (5.0) äëÿ PowerPC.

Â NAS ÿ ìàëî ñîìíåâàþñü, òàì NFS òåñòèðîâàëè. ß õî÷ó ïîïðîáîâàòü âîñïðîèçâåñòè ïðîáëåìó.

Íèêàêèõ:

À âîò çäåñü ëó÷øå ôîðñèðîâàòü âåðñèþ NFSv3, òàê êàê ó Ýðèêà çà÷åì-òî âêëþ÷åíà ïîääåðæêà NFSv4 â ÿäðå, à â 2.6.22 îíà, ìÿãêî ãîâîðÿ, êîñòûëüíàÿ.

**ryzhov_al** · 10-03-2013, 18:32

Ôîðñèðîâàòü NFSv3 íå ïðèõîäèòñÿ, áåç îïöèé âñ¸ ìîíòèðóåòñÿ êàê v3.

Code:

 admin@RT-N66U:/tmp/home/root# mount | grep Tank
10.9.68.7:/nfs/Tank/Soft/Router on /tmp/mnt/MBL type nfs (rw,vers=3,rsize=32768,wsize=32768,hard,proto=tcp,timeo=70,retrans=3,sec=sys,addr=10.9.68.7)

×òî, êñòàòè, âèäíî ïî ñòàòèñòèêå íà ñòîðîíå ñåðâåðà â ìî¸ì ïðåäûäóùåì ïîñòå.
Ñâîï ïðîáëåìó íå ðåøàåò.

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