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jonen |
1.1 |
<hr/> |
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- FreeBSD(stable): |
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o read more about BSD package systems (pkg, cvsup) |
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x for simple package installation/de-installation use pkg |
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x install downloaded package: |
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:# pkg_add {package}-{version}.tgz |
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x install package via remote server(only if package is available as *latest*): |
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pkg_add -r {package}.tgz |
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x using cvsup |
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x read http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/cvsup.html |
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x newbies could use cvsupit: |
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:# pkg_add -r cvsupit.tgz |
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- cvsupit will proberly ask you for the default values it |
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place at /etc/cvsupfile, which is used by cvsup |
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- after that it will start cvsup to update your system |
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x if /etc/cvsupfile already exists and you know what you do, |
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this command will update your system (maybe run it via cron...): |
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:# /usr/local/bin/cvsup -g -L 2 /etc/cvsupfile |
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where '-g' tells cvsup not to use a GUI, '-L 2' sets default output level to 2 |
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x for available cvs tags, look at http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/cvs-tags.html |
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o whats about daemon start-stop scripts (like at linux: /etc/init.d/) ? |
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x some daemons (only installed ports?) start-stop-scripts are placed at '/usr/local/etc/rc.d/' |
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o how at '/etc/rc.conf' toogled start-up scripts can be run manually(e.g. /etc/rc.firewall)? |
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x configure and compile custom kernel: |
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x read http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-building.html |
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x create custom kernel conf-file |
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- cd usr/src/sys/i386/conf/ |
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jonen |
1.2 |
- copy default kernel GENERIC to eg MYKERNEL |
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jonen |
1.1 |
- edit/modify MYKERNEL |
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x configure sources(really?) |
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- run /usr/sbin/config MYKERNEL |
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x build kernel |
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- cd ../../MYKERNEL |
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- make depend |
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- make |
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- make install |
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x use packet fiters (firewall): |
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x read http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/firewalls.html |
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x some options at the kernel have to be enabled: |
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- options IPFIREWALL |
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Compiles into the kernel the code for packet filtering. |
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- options IPFIREWALL_VERBOSE |
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Enables code to allow logging of packets through syslogd. |
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Without this option, even if you specify that packets should be logged in the filter rules, |
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nothing will happen. |
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- options IPFIREWALL_VERBOSE_LIMIT=10 |
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Limits the number of packets logged through syslogd on a per entry basis. |
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You may wish to use this option in hostile environments in which you want to log firewall activity, |
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but do not want to be open to a denial of service attack via syslog flooding. |
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When a chain entry reaches the packet limit specified, logging is turned off for that particular entry. |
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To resume logging, you will need to reset the associated counter using the ipfw(8) utility: |
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:# ipfw zero 4500 |
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Where 4500 is the chain entry you wish to continue logging. |
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- options IPFIREWALL_DEFAULT_TO_ACCEPT |
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This changes the default rule action from ``deny'' to ``allow''. |
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This avoids the possibility of locking yourself out if you happen to boot a kernel with IPFIREWALL support but have not configured your firewall yet. |
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It is also very useful if you often use ipfw(8) as a filter for specific problems as they arise. |
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Use with care though, as this opens up the firewall and changes the way it works. |
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x firewall is enabled at /etc/rc.conf (or /etc/rc.conf.local) |
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firewall_enabled = "YES" |
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firewall_type = "{firewall_type}" |
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x where {firewall_type} is either a case at /etc/rc.firewall (/etc/rc.firewall6 for ipv6) |
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or some custom file to read rules from. |
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x Use firewall_type = "OPEN" for default policy 'OPEN' (allow all) |
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jonen |
1.2 |
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- Backup: |
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x bacula (http://www.bacula.org) |
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Bacula is a set of computer programs that permit you (or the system administrator) to manage backup, |
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recovery, and verification of computer data across a network of computers of different kinds. |
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In technical terms, it is a network client/server based backup program. |
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Bacula is relatively easy to use and efficient, while offering many advanced storage management features |
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that make it easy to find and recover lost or damaged files. |
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Bacula source code has been released under the GPL version 2 license. |
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x created debian package, cause we can't found any other |
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x wrote some notes about how to build an debian binary package |
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http://www.netfrag.org/~jonen/computing/docs/build_bacula_deb.html |
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o create 'postinst' and 'prerm' scripts for saving configs on update, etc. |
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x tested network backup with Director, Storage Daemon and File Daemon(Client) |
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at different hosts, works great! |
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x tested backup to FileStorage, instead of using tapes drives |
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(if someone would like to sponsor some tape drive, you're more than welcome!) |
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notes: |
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x remember to use different 'LabelFormat' filename at each pool ! |
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x use compression at 'FileSet' definition, where GZIP is equal to GZIP6, means compression-level 6 (1-9) |
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example: |
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# ====== snip FileSet ============ |
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FileSet { |
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Name = "Full Set" |
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Include = signature=MD5 compression=GZIP { |
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/home |
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} |
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Exclude = { *.o } |
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} |
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# ====== snip FileSet ============ |
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jonen |
1.1 |
- Linux & Wireless Lan: |
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x install modules: |
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x prims2 chipset based: |
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- if debian kernel-image is used |
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:#apt-get install linux-wlan-ng-modules-{your_arch} |
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- if not, cd to some temp dir and |
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:#apt-get source linux-wlan-ng or wget sources manually if other dist is used |
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:#cd linux-wlan-ng-{version} |
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:#./Configure |
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:#make all install |
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x configure at debian: |
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x add SSID to dev at /etc/wlan/wlan.conf e.g.: |
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SSID_wlan0="WGATEWAY" |
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ENABLE_wlan0=y |
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x create and edit cutom config related to SSID |
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:#cp /etc/wlan/wlancfg-DEFAULT /etc/wlan/wlancfg-WGATEWAY |
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:#nano /etc/wlan/wlancfg-WGATEWAY |
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x notes!: |
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- prism2-based USB devices mostly needs hardware reset to get changes work! |
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this is caused of the firmware and could only be solved by a firmware-upgrade |
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of the vendor responsible for these devices. |
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o get WEP really work at heterogen enviroments(eg. between Win and Linux) |
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o WEP is unsecure! (see http://wepcrack.sourceforge.net/) |
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o use IPSEC |
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o or some other ideas? |
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jonen |
1.2 |
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jonen |
1.1 |
- Linux & Bluetooth |
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With some tweaking bluetooth works as expected. |
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You will need the above mentioned patch patch-2.4.20-mh6 to have full functionality with 2.4.20. Then add |
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deb http://bluez.sourceforge.net/download/debian/woody/ ./ |
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deb-src http://bluez.sourceforge.net/download/debian/woody/ ./ |
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to your /etc/apt/sources.list for woody and install at least the packages "bluez-bluefw" |
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for loading the firmware into the usb bluetooth device. You will need "bluez-utils" for hci and rfcomm communications. |
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You need to add this line |
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bluefw 0x0003 0x044e 0x3001 0x0000 0x0000 0x00 0x00 0x00 0x00 0x00 0x00 0x00000000 |
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to your /etc/hotplug/usb/bluefw.usermap to let the bluefw automatically load the appropriate firmware |
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into your dongle once it shows up. |
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I am using bluetooth with a Siemens S55, but e.g. Nokia 6310i goeas the same way. |
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For an initial pairing you will need a pin in /etc/bluetooth/pin which at least needs to have 5 digits which is documented near nowhere. |
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Once you do the pairing (Entered pin on the X requester popping up and on the cellphone) you can set your phone to not "Ask on connection". |
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Afterwards i put the rfcomm config into the /etc/bluetooth/rfcomm.conf |
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rfcomm0 { |
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device 00:02:EE:B8:50:C5; |
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channel 1; |
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comment "S55 Dialup connection"; |
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} |
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rfcomm1 { |
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device 00:02:EE:B8:50:C5; |
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channel 9; |
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comment "S55 OBEX"; |
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} |
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For dialing out via ppp you now can use /dev/rfcomm0 which should lead to your phone asking you to accept the connection. |
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For debugging you can use these commands: |
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:~$ sudo hcitool scan |
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Scanning ... |
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00:02:EE:B8:50:C5 6310i.rfc822 |
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:~$ sudo hcitool info 00:02:EE:B8:50:C5 |
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Requesting information ... |
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BD Address: 00:02:EE:B8:50:C5 |
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Device Name: 6310i.rfc822 |
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LMP Version: 1.1 (0x1) LMP Subversion: 0x22c |
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Manufacturer: Nokia Mobile Phones (1) |
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Features: 0xbf 0x28 0x21 0x00 |
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<3-slot packets> <5-slot packets> <encryption> <slot offset> |
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<timing accuracy> <role switch> <sniff mode> <SCO link> |
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<HV3 packets> <CVSD> |
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:~$ sudo sdptool browse |
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Inquiring ... |
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Browsing 00:02:EE:B8:50:C5 ... |
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Service Name: Fax |
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Service RecHandle: 0x10000 |
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Service Class ID List: |
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"Fax" (0x1111) |
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"Generic Telephony" (0x1204) |
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Protocol Descriptor List: |
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"L2CAP" (0x0100) |
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"RFCOMM" (0x0003) |
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Channel: 2 |
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Language Base Attr List: |
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code_ISO639: 0x656e |
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encoding: 0x6a |
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base_offset: 0x100 |
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Profile Descriptor List: |
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"Fax" (0x1111) |
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Version: 0x0100 |
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................. |
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- Hardware Notes: |
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x Broadcom 2033 chipset (tested with an ALLNET 7031 Class1 USB Adapter) |
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- Make sure you have bluefw and hotplug installed, then everything works fine right out of the box. |
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x on debian using default or for newer packages above sources: |
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:#apt-get install bluez-bluefw |
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- DO NOT enable the bluetooth.o module to avoid it being loaded by hotplug!! |
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x this can be done by adding 'bluetooth' to '/etc/hotplug/blacklist' |
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The Bluetooth device in this laptop is a USB Bluetooth device. |
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By default, Linux provides two different device drivers for USB Bluetooth devices: bluetooth.o and hci_usb.o. |
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The hci_usb.o is the correct driver for this device. Both drivers are loaded when the Bluetooth button is pushed |
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but unfortunately bluetooth.o obtains the device first, not allowing hci_usb.o to use the device. |
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In order for the Bluetooth device to be function, the bluetooth.o driver must not load. |
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One way to stop the bluetooth.o driver from loading is to remove the driver from the system. This is accomplished by doing: |
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:#rm /lib/modules/2.4.18-14/kernel/drivers/usb/bluetooth.o |
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:#depmod -a |
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Now, if inserting th usb device only the hci_usb.o should be loaded. |
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- ACPI |
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x get suspend work |
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- compile kernel with 'Software Suspend Support' |
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- some interesting post: |
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from http://lists.debian.org/debian-laptop/2002/debian-laptop-200208/msg00349.html |
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#------- begin post ----------------------- |
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From: "Bem Ajani Jones-Bey" <ajani@OCF.Berkeley.EDU> |
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> On Fri, Aug 23, 2002 at 01:14:06PM +0200, Erich Schubert wrote: |
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> > Well, S1 is sleep mode, so your BIOS claims to not support sleep mode! |
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> > Try getting a bios update, that might help. |
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> > S5 is poweroff... S3 or S4 are suspend levels i think... one might be |
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> > power-off, maybe that was S3... |
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S4 is suspend-to-disk, S3 is suspend-to-RAM. |
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> So, last I checked, Linux ACPI didn't support suspend to memory or |
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> suspend to disk; the software suspend patch is the only way to get an |
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> ACPI laptop to do anything resembling sleeping. I was also under the |
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> impression that this wasn't going to work for awhile; at least until |
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> 2.6. I admit I haven't looked at ACPI in a couple months, but last time |
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> I looked, they were projecting that suspend./sleep wouldn't happen any |
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> time soon. |
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Last I checked, ACPI does suspend to memory or disk, using swsusp. It's |
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even all integrated into the 2.5 kernels (though the CONFIG_SWSUSP option is |
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buried in the kernel hacking section rather than ACPI). If you don't want to |
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run an experimental kernel, then you can patch 2.4.x from the acpi.sf.net site. |
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#-------- end post ------------------------------- |
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- misc: |
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x finding processes using special device(module) and kill them(example for alsa modules): |
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:# lsof -t /dev/{audio,dsp,midi,mixer,music,sequencer,sndstat} | xargs kill |
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jonen |
1.2 |
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jonen |
1.1 |
<hr/> |
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jonen |
1.2 |
$Id: notes_2003-03.twingle,v 1.1 2003/04/07 01:28:41 jonen Exp $ |
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