Vsftpd.log 不輪轉的問題

預設安裝Ubuntu時,安裝vsftpd伺服器
於/var/log/vsftpd.log 不會自動產生log輪轉的問題!!

解決方式:
apt-get install logrotate
logrotate -vf /etc/logrotate.conf

iscsitarget make error block-io.c

link: http://www.l4l.be/index.php/linuxdocs/46-storage/112-iscsi-enterprise-target-installatie

Installatie
Zorg er voor dat de compiler en bijbehorende tools geinstalleerd staan, ook is openssl-dev nodig. Onder Ubuntu doe je dit met: 


apt-get install build-essential libssl-dev

Download IETd, also-known-as iscsitarget:


wget http://downloads.sourceforge.net/project/iscsitarget/iscsitarget/0.4.17/iscsitarget-0.4.17.tar.gz

Pak het uit:


tar xzvf iscsitarget-0.4.17.tar.gz
cd iscsitarget-0.4.17


Als je nu zou willen compileren, dan loop je tegen het volgende probleem op:

iscsitarget-0.4.17/kernel/block-io.c: In function ‘blockio_open_path’:
iscsitarget-0.4.17/kernel/block-io.c:164: error: implicit declaration of function ‘open_bdev_excl’
iscsitarget-0.4.17/kernel/block-io.c:164: warning: assignment makes pointer from integer without a cast
iscsitarget-0.4.17/kernel/block-io.c: In function ‘blockio_detach’:
iscsitarget-0.4.17/kernel/block-io.c:328: error: implicit declaration of function ‘close_bdev_excl’
iscsitarget-0.4.17/kernel/block-io.o] Error 1
iscsitarget-0.4.17/kernel] Error 2
Met andere woorden er is een probleem... Open het bestand block-io.c in je favoriete editor, en ga naar regel 164. Daar staat:


bdev = open_bdev_excl(path, flags, THIS_MODULE);


Verander dit in:


bdev = open_bdev_exclusive(path, flags, THIS_MODULE);


Ook is er een verandering nodig in regel 328, voor het gemak geef ik hier de volledige verandering weer:


static void
blockio_detach(struct iet_volume *volume)
{
        struct blockio_data *bio_data = volume->private;
        int flags = FMODE_READ | (LUReadonly(volume) ? 0 : FMODE_WRITE);
        if (bio_data->bdev)
                close_bdev_exclusive(bio_data->bdev, flags);
        kfree(bio_data->path);

        kfree(volume->private);
}


Nu kun je compileren/installeren:


make
sudo make install

lo: Disabled Privacy Extensions 錯誤on ubuntu 9.04

dmesg
lo: Disabled Privacy Extensions
lo: Disabled Privacy Extensions
lo: Disabled Privacy Extensions
lo: Disabled Privacy Extensions
........ more

修改 vim /etc/default/grub
於GRUB_CMDLINE_LINUX="" 加入 ipv6.disable=1
    GRUB_CMDLINE_LINUX="ipv6.disable=1"
存檔後
執行 update-grub
reboot

Google App Engine文件 備份下載

Link from: http://www.manatlan.com/blog/zipme___download_sources_of_your_gae_website__as_a_zip_file

修改app.yaml加入下列二行 :


- url: /zipme
  script: zipme.py



以下存檔為zipme.py放置於根目錄下 例:http://gae-id.appspot.com/zipme


#!/usr/bin/env python
# -*- coding: UTF-8 -*-
"""
##########################################################################
ZipMe : GAE Content Downloader
##########################################################################
Just add this lines in your app.yaml :

- url: /zipme
  script: zipme.py

##########################################################################
"""                                                             # manatlan

from google.appengine.ext import webapp
from google.appengine.api import users

import wsgiref.handlers
import zipfile
import os,re,sys,stat
from cStringIO import StringIO

def createZip(path):

    def walktree (top = ".", depthfirst = True):
        names = os.listdir(top)
        if not depthfirst:
            yield top, names
        for name in names:
            try:
                st = os.lstat(os.path.join(top, name))
            except os.error:
                continue
            if stat.S_ISDIR(st.st_mode):
                for (newtop, children) in walktree (os.path.join(top, name),
                                                    depthfirst):
                    yield newtop, children
        if depthfirst:
            yield top, names

    list=[]
    for (basepath, children) in walktree(path,False):
          for child in children:
              f=os.path.join(basepath,child)
              if os.path.isfile(f):
                    f = f.encode(sys.getfilesystemencoding())
                    list.append( f )

    f=StringIO()
    file = zipfile.ZipFile(f, "w")
    for fname in list:
        nfname=os.path.join(os.path.basename(path),fname[len(path)+1:])
        file.write(fname, nfname , zipfile.ZIP_DEFLATED)
    file.close()

    f.seek(0)
    return f


class ZipMaker(webapp.RequestHandler):
    def get(self):
        if users.is_current_user_admin():
            folder = os.path.dirname(__file__)
            self.response.headers['Content-Type'] = 'application/zip'
            self.response.headers['Content-Disposition'] = \
                    'attachment; filename="%s.zip"' % os.path.basename(folder)
            fid=createZip(folder)
            while True:
                buf=fid.read(2048)
                if buf=="": break
                self.response.out.write(buf)
            fid.close()
        else:
            self.response.headers['Content-Type'] = 'text/html'
            self.response.out.write("<a href=\"%s\">You must be admin</a>." %
                                    users.create_login_url("/zipme"))

def main():
    application = webapp.WSGIApplication(
                                       [('/zipme', ZipMaker)],
                                       debug=False)
    wsgiref.handlers.CGIHandler().run(application)

if __name__ == "__main__":
    main()

注意事項:
www.google.coma/a/mydomain 的用戶沒有辦法登入GAE
所以請另外開一個app帳戶, 請mydomain的管理者邀請
Administration
Developers <== Invite a Developer to Collaborate on this Application:
Enter a complete email address

利用MAC位址找出廠商名稱

mac_find