system toolbox » router

• /etc/hotplug.d/01-vars
• config/network - route - ne koristim iz flash-a postavke nego imam posebnu skriptu /tmp/routes.sh
• routes.sh se sada kopira na /tmp (do sada se pokretao sa /mnt/1/etc/routes.sh

u /etc/init.d/custom-user-startup stavio

if [ "$SHFS_BOOT" == "boot" ]                                  
then                                                           

  if [ ! -d $TMP_DIR ]                                         
  then                                                        
      mkdir $TMP_DIR         
  fi      

  ...
fi

prebacio sam image na /tmp,

• ifdown wan
• killall httpd
• /etc/init.d/openvpn stop

dobio stanje

root@router-wan-sa-1:/tmp# free         
              total         used         free       shared      buffers
  Mem:        14288        12988         1300            0         1124
 Swap:            0            0            0
Total:        14288        12988         1300

root@router-wan-sa-1:/tmp# mtd -r write openwrt-brcm-2.4-squashfs.trx  linux
Unlocking linux ...
Writing from openwrt-brcm-2.4-squashfs.trx to linux ...  [w]
Rebooting ....
Connection to router-wan-sa-1 closed by remote host.
Connection to router-wan-sa-1 closed.

podesio

hernad@nmraka-1:~/Desktop$ sudo ip addr add 192.168.1.33/24 dev eth0

ali ne mogu pingati 192.168.1.1 ovo me sada zabrinjava

uh izgubih sat vremena ...

1. diag
2. switch

bez njih image neće da se boot-a,

triputa sam tft clientom vraćao image (#13905) i pržio, ali zaglavi ... na kraju sam vratio ove module i sve je od prve prošlo

nakon restoriranja config-a (uz pomoć xwrt-a vidim da /tmp/refresh_ip ne postoji:

napravio sam ga i ručno pokrnuo komandu

root@router-wan-sa-1:/tmp# mkdir refresh_ip
root@router-wan-sa-1:/tmp# ./refresh_ip.sh
ip=89.146.150.155
cat: can't open 'last_ip.txt': No such file or directory
ip sigma-com.net =  89.146.150.155
reloading name server

Host '128.177.28.71' is not in the trusted hosts file.
(fingerprint md5 35:52:bf:aa:74:dc:7b:97:9d:01:6c:c4:93:c6:4d:7e)
Do you want to continue connecting? (y/n) yes
tmp.zone                                      100% 1619     1.6KB/s   00:00    
feedback=_2_
root@router-wan-sa-1:/tmp# ./refresh_ip.sh
ip=89.146.150.155

reboot-am još jednom da vidim da li refresh_ip radi posao:

root@router-wan-sa-1:/tmp/refresh_ip# cat last_call.txt
Sat Apr 12 19:44:03 CEST 2008 : IP CHANGE has happened - old   new 89.146.156.67 !

što se tiče ram-a kriza - 97% zauzeće :(

ovaj mi je članak pomogao

tu sam pročitao da je /tmp/swap beskoristan

onda sam se sjetio - pa imam kolko ti duša hoće prostora na /mnt/1 :)

root@router-wan-sa-1:/tmp# dd if=/dev/zero of=/mnt/1/swap count=8000
8000+0 records in
8000+0 records out
root@router-wan-sa-1:/tmp# mkswap /mnt/1/swap
Setting up swapspace version 1, size = 4091 kB
no label, UUID=4ee8b313-c154-4ade-bb78-606a7b43e208
root@router-wan-sa-1:/tmp# swapon /mnt/1/swap
root@router-wan-sa-1:/tmp# free
              total         used         free       shared      buffers
  Mem:        14288        12108         2180            0           84
 Swap:         3992            0         3992
Total:        18280        12108         6172

• Total: 14288 KiB 90% Used: 12740 KiB (90%)
• Swap: 3992 KiB 0% Used: 0 KiB (0%)

dodajem na root@router-wan-sa-1:/mnt/1/etc/init.d/custom-user-startup

#swap prije svega
SWAP_SIZE=16000                                                                 
if [ ! -f /mnt/swap ]                                        
then                                                         
  dd if=/dev/zero of=/mnt/1/swap count=$SWAP_SIZE            
  mkswap /mnt/1/swap                                         
fi                                                           

swapon /mnt/1/swap     

ali nakon uvođenja swap-a počinju se dešavati čudne stvari:

ssh je otkazao, a odziv ostalih servisa je ok

[root@ernadh ~]# telnet mail.sigma-com.net 25
Trying 89.146.150.199...
Connected to mail.sigma-com.net.
Escape character is '^]'.
220 mail-gw-10.sigma-com.net ESMTP Postfix (Ubuntu)
quit
221 Bye
Connection closed by foreign host.

isto tako webif http server otkazuje ...

izgleda da kada se swap počne koristiti sistem prolupa

takođe sistem otkaže nakon što mu updatu-jem firewall

interesantno, nakon što se firewall pokrenuo stvar je čučnula ...

logički gledano, došlo je do vađenja memorije (jer je resetovanje firewalo učinio /mnt/1 nedostupnim)

onda bi rješenje moglo/trebalo biti swapoff / swapon sekvenca prilikom update-a firewall-a

sad se prisjećam da je do ovih prekida dolazilo i kada sam osvježavao firewall a on je bio lociran na /mnt/1/etc ... na mrežnom disku

ništa, ovo otkazivanje se ponavlja moram odustati od mrežnog swap-a barem preko shfs-a