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Ohjelmointi, palvelimet ja muu edistyneempi käyttö / Vs: LibreOffice tai Excel apua kaivataan
« : 23.11.17 - klo:23.06 »
Siis jos C < B, niin D = A+1? Eiköhän tuosta kaavan saa... Kokeile itsekin.
Ubuntu 22.04 LTS | Lataa ja asenna | Tutustu yhteisöön | Blogi | Yritysten tarjoamat palvelut
Uusimmat julkaisut: 22.04.4 LTS (suositeltu, 22.2.2024) ja 23.10 (16.10.2023).
Tässä osiossa voit tarkastella kaikkia tämän jäsenen viestejä. Huomaa, että näet viestit vain niiltä alueilta, joihin sinulla on pääsy.
Lisää tuonne jakoon lukuoikeudet kaikille järjestelmän käyttäjätunnuksille rekursiivisesti:
chmod -R a+rX /home/ari/avi
sudo ln -s /home/ari/avi /srv/samba/share/video
Oikeuksia aloin jo tässä itsekin epäillä...
sudo mount --bind /home/ari/avi/kkk /srv/samba/share/mountti
chmod o+rx /home/ari/avi/kkk
Luultavasti sama oikeusongelma estää symbolisten linkkien toimimisen. Eli Samba ei nyt pääse käsiksi noihin kotihakemistosi alla oleviin hakemistoihin -- luultavasti niissä tai kotihakemistossasi on liian tiukat luku- ja suoritusoikeudet muille käyttäjille. Miltä näyttää:
ari@ari:~$ ls -ld /home/ari
drwxr-xr-x 82 ari ari 184320 marra 21 12:19 /home/ari
ari@ari:~$ ls -ld /home/ari/avi
drwx------ 17 ari ari 159744 marra 21 14:35 /home/ari/avi
ari@ari:~$ ls -ld /home/ari/avi/kkk
drwx------ 2 ari ari 61440 marra 14 04:35 /home/ari/avi/kkk
Jos ei vieläkään lähde toimimaan, kopioi koko smb.confin sisältö tänne, niin tutkitaan.
ari@ari:~$ cat /etc/samba/smb.conf
#
# Sample configuration file for the Samba suite for Debian GNU/Linux.
#
#
# This is the main Samba configuration file. You should read the
# smb.conf(5) manual page in order to understand the options listed
# here. Samba has a huge number of configurable options most of which
# are not shown in this example
#
# Some options that are often worth tuning have been included as
# commented-out examples in this file.
# - When such options are commented with ";", the proposed setting
# differs from the default Samba behaviour
# - When commented with "#", the proposed setting is the default
# behaviour of Samba but the option is considered important
# enough to be mentioned here
#
# NOTE: Whenever you modify this file you should run the command
# "testparm" to check that you have not made any basic syntactic
# errors.
#======================= Global Settings =======================
[global]
;allow insecure wide links = yes
unix extensions = no
## Browsing/Identification ###
# Change this to the workgroup/NT-domain name your Samba server will part of
workgroup = WORKGROUP
# server string is the equivalent of the NT Description field
server string = %h server (Samba, Ubuntu)
# Windows Internet Name Serving Support Section:
# WINS Support - Tells the NMBD component of Samba to enable its WINS Server
# wins support = no
# WINS Server - Tells the NMBD components of Samba to be a WINS Client
# Note: Samba can be either a WINS Server, or a WINS Client, but NOT both
; wins server = w.x.y.z
# This will prevent nmbd to search for NetBIOS names through DNS.
dns proxy = no
#### Networking ####
# The specific set of interfaces / networks to bind to
# This can be either the interface name or an IP address/netmask;
# interface names are normally preferred
; interfaces = 127.0.0.0/8 eth0
# Only bind to the named interfaces and/or networks; you must use the
# 'interfaces' option above to use this.
# It is recommended that you enable this feature if your Samba machine is
# not protected by a firewall or is a firewall itself. However, this
# option cannot handle dynamic or non-broadcast interfaces correctly.
; bind interfaces only = yes
#### Debugging/Accounting ####
# This tells Samba to use a separate log file for each machine
# that connects
log file = /var/log/samba/log.%m
# Cap the size of the individual log files (in KiB).
max log size = 1000
# If you want Samba to only log through syslog then set the following
# parameter to 'yes'.
# syslog only = no
# We want Samba to log a minimum amount of information to syslog. Everything
# should go to /var/log/samba/log.{smbd,nmbd} instead. If you want to log
# through syslog you should set the following parameter to something higher.
syslog = 0
# Do something sensible when Samba crashes: mail the admin a backtrace
panic action = /usr/share/samba/panic-action %d
####### Authentication #######
# Server role. Defines in which mode Samba will operate. Possible
# values are "standalone server", "member server", "classic primary
# domain controller", "classic backup domain controller", "active
# directory domain controller".
#
# Most people will want "standalone sever" or "member server".
# Running as "active directory domain controller" will require first
# running "samba-tool domain provision" to wipe databases and create a
# new domain.
server role = standalone server
# If you are using encrypted passwords, Samba will need to know what
# password database type you are using.
passdb backend = tdbsam
obey pam restrictions = yes
# This boolean parameter controls whether Samba attempts to sync the Unix
# password with the SMB password when the encrypted SMB password in the
# passdb is changed.
unix password sync = yes
# For Unix password sync to work on a Debian GNU/Linux system, the following
# parameters must be set (thanks to Ian Kahan <<kahan@informatik.tu-muenchen.de> for
# sending the correct chat script for the passwd program in Debian Sarge).
passwd program = /usr/bin/passwd %u
passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
# This boolean controls whether PAM will be used for password changes
# when requested by an SMB client instead of the program listed in
# 'passwd program'. The default is 'no'.
pam password change = yes
# This option controls how unsuccessful authentication attempts are mapped
# to anonymous connections
map to guest = bad user
########## Domains ###########
#
# The following settings only takes effect if 'server role = primary
# classic domain controller', 'server role = backup domain controller'
# or 'domain logons' is set
#
# It specifies the location of the user's
# profile directory from the client point of view) The following
# required a [profiles] share to be setup on the samba server (see
# below)
; logon path = \\%N\profiles\%U
# Another common choice is storing the profile in the user's home directory
# (this is Samba's default)
# logon path = \\%N\%U\profile
# The following setting only takes effect if 'domain logons' is set
# It specifies the location of a user's home directory (from the client
# point of view)
; logon drive = H:
# logon home = \\%N\%U
# The following setting only takes effect if 'domain logons' is set
# It specifies the script to run during logon. The script must be stored
# in the [netlogon] share
# NOTE: Must be store in 'DOS' file format convention
; logon script = logon.cmd
# This allows Unix users to be created on the domain controller via the SAMR
# RPC pipe. The example command creates a user account with a disabled Unix
# password; please adapt to your needs
; add user script = /usr/sbin/adduser --quiet --disabled-password --gecos "" %u
# This allows machine accounts to be created on the domain controller via the
# SAMR RPC pipe.
# The following assumes a "machines" group exists on the system
; add machine script = /usr/sbin/useradd -g machines -c "%u machine account" -d /var/lib/samba -s /bin/false %u
# This allows Unix groups to be created on the domain controller via the SAMR
# RPC pipe.
; add group script = /usr/sbin/addgroup --force-badname %g
############ Misc ############
# Using the following line enables you to customise your configuration
# on a per machine basis. The %m gets replaced with the netbios name
# of the machine that is connecting
; include = /home/samba/etc/smb.conf.%m
# Some defaults for winbind (make sure you're not using the ranges
# for something else.)
; idmap uid = 10000-20000
; idmap gid = 10000-20000
; template shell = /bin/bash
# Setup usershare options to enable non-root users to share folders
# with the net usershare command.
# Maximum number of usershare. 0 (default) means that usershare is disabled.
; usershare max shares = 100
# Allow users who've been granted usershare privileges to create
# public shares, not just authenticated ones
usershare allow guests = yes
#======================= Share Definitions =======================
# Un-comment the following (and tweak the other settings below to suit)
# to enable the default home directory shares. This will share each
# user's home directory as \\server\username
;[homes]
; comment = Home Directories
; browseable = no
# By default, the home directories are exported read-only. Change the
# next parameter to 'no' if you want to be able to write to them.
; read only = yes
# File creation mask is set to 0700 for security reasons. If you want to
# create files with group=rw permissions, set next parameter to 0775.
; create mask = 0700
# Directory creation mask is set to 0700 for security reasons. If you want to
# create dirs. with group=rw permissions, set next parameter to 0775.
; directory mask = 0700
# By default, \\server\username shares can be connected to by anyone
# with access to the samba server.
# Un-comment the following parameter to make sure that only "username"
# can connect to \\server\username
# This might need tweaking when using external authentication schemes
; valid users = %S
# Un-comment the following and create the netlogon directory for Domain Logons
# (you need to configure Samba to act as a domain controller too.)
;[netlogon]
; comment = Network Logon Service
; path = /home/samba/netlogon
; guest ok = yes
; read only = yes
# Un-comment the following and create the profiles directory to store
# users profiles (see the "logon path" option above)
# (you need to configure Samba to act as a domain controller too.)
# The path below should be writable by all users so that their
# profile directory may be created the first time they log on
;[profiles]
; comment = Users profiles
; path = /home/samba/profiles
; guest ok = no
; browseable = no
; create mask = 0600
; directory mask = 0700
[printers]
comment = All Printers
browseable = no
path = /var/spool/samba
printable = yes
guest ok = no
read only = yes
create mask = 0700
# Windows clients look for this share name as a source of downloadable
# printer drivers
[print$]
comment = Printer Drivers
path = /var/lib/samba/printers
browseable = yes
read only = yes
guest ok = no
# Uncomment to allow remote administration of Windows print drivers.
# You may need to replace 'lpadmin' with the name of the group your
# admin users are members of.
# Please note that you also need to set appropriate Unix permissions
# to the drivers directory for these users to have write rights in it
; write list = root, @lpadmin
[share]
follow symlinks = yes
wide links = yes
comment = Ubuntu File Server Share
path = /srv/samba/share
browsable = yes
guest ok = yes
read only = yes
create mask = 0755
Samba ei seuraa symbolisia linkkejä oletuksena. Voit kytkeä tuen päälle Samban asetustiedostossa:
ari@ari:~$ locate smb.conf
/etc/samba/smb.conf
/etc/samba/smb.conf~
/usr/share/doc/nautilus-share/examples/smb.conf
/usr/share/doc/samba-common/examples/smb.conf.default.gz
/usr/share/man/man5/smb.conf.5.gz
/usr/share/samba/smb.conf
/var/lib/ucf/cache/:etc:samba:smb.conf
ari@ari:/srv/samba/share$ ll
yhteensä 33884
drwxr-xr-x 2 nobody nogroup 4096 marra 9 19:12 ./
drwxr-xr-x 3 root root 4096 marra 9 16:27 ../
lrwxrwxrwx 1 root root 17 marra 9 19:09 kkk -> /home/ari/avi/kkk/
-rw-r--r-- 1 root root 34682646 marra 9 17:31 Nokia-2016-videoklippejä.mp4
lrwxrwxrwx 1 root root 32 marra 9 19:12 siskonpeti.avi -> /home/ari/avi/kkk/siskonpeti.avi
Kiitos tuo toimii.Sorry , ei toimi. En tajua, minne tuo latautuu linuxissa... Kertokaa.
Miksi prossun lämmöt korkealla hetkellisesti..ubuntu 16.04lts sivun latauksen aikana..
sivuston lataus kestää noin 2-5sek ja monesti iskee koneen sammuksiin korkeilla lämpö-arvoilla.
Sekään ei ole aivan yksinkertainen, kun varsinkin pöytäkonetta tulee päivitettyä elinkaarensa aikana,
USB-johdolla näen Nokian sisällön myös Nautiluksella, kuvatkin löytyi ja voin jopa nimetä järkevästi kuvat puhelimeen, mutta en voi kopioida kuvia tietokoneen kiintolevylle.
USB-portissa on laite, joka kirjoittaa sekunnin välein muutaman sanan viestin, ja viestien tuloa voi seurata esimerkiksi jollain pääteohjelmalla tai omatekoisella tätä varten tehdyllä ohjelmalla.
Yritin sitten saada tulostetta päätteelleKoodia: [Valitse]$tail -F /dev/ttyUSB0
koetuloste usbilta ...
koetul
$cat /dev/ttyUSB0
koetuloste usbilta ...
koetul
Mutta vain pari riviä tulee näkyville, vaikka tulostus on käynnissä usbiin koko ajan. Jostain syystä bash haluaa katkaista tuostuksen, mutta rivinvaihdosta tai kursorinpalautuksesta ei kuitenkaan taida olla kyse, koska ensimmäinen rivi tulee oikein ja seuraava katkeaa keskeltä.
Haluaako bash tässä vain lukea tietyn pituisia rivejä. Miten saisi tulostuksen jatkumaan vaikka <ctrl> c:n painamiseen asti.
#! /usr/bin/python
import serial
from time import strftime, sleep
ser = serial.Serial('/dev/ttyUSB0', 9600, timeout = 0.5)
sleep (0.5)
#ser.write ('Reset'.encode('UTF8'))
while 1:
sleep(0.5)
if ser.inWaiting() >= 1:
# messages14 chars
lin = ser.readline()
line = lin.decode('utf8')
f = open( 'z', 'a')
f.write (line)
f.close()
Onkos täällä kenelläkään suosituksia ongelmattomaksi virtalähteeksi, tehoa mieluusti yli 500 wattia.
ari@ari:~$ dmesg|grep -i xeon
[ 0.071592] smpboot: CPU0: Intel(R) Xeon(R) CPU E5430 @ 2.66GHz
Mitäs teillä muilla tuo gnome-shell -prosessi vie RAM:mia vaikkapa muutaman tunnin käynnissäolon jälkeen? Ei liene satoja megoja...
ari@ari:~$ top -b -n 1 | grep gnome
2025 ari 20 0 447036 2984 2136 S 0,0 0,1 0:00.19 gnome-keyring-d
2199 ari 20 0 661780 8804 5032 S 0,0 0,2 0:00.85 gnome-session
2310 ari 20 0 848164 68232 11520 S 0,0 1,8 0:45.45 gnome-panel
2314 ari 20 0 757612 13416 8076 S 0,0 0,4 0:00.41 polkit-gnome-au
2336 ari 20 0 767504 19864 9576 S 0,0 0,5 1:10.12 gnome-terminal
2372 ari 20 0 455120 18620 14668 S 0,0 0,5 0:27.83 gnome-screensav
2523 ari 20 0 14828 792 632 S 0,0 0,0 0:00.00 gnome-pty-helpe
ari@ari:~$ uname -a
Linux ari 3.13.0-125-generic #174-Ubuntu SMP Mon Jul 10 18:51:24 UTC 2017 x86_64 x86_64 x86_64 GNU/Linux
ari@ari:~$
Tarkoitukseni on tehdä valokuvatiedostoilleni ja niiden tietokannalle varmuuskopiontisysteemi käyttäen raidia. Löysin tällasen ohjeen http://www.homelinuxpc.com/download/software_raid.html. Osaako joku sanoa käykö tämä ohje myös ulkosille usb-kovalevylle?
Siis ajattelin kahta ulkoista kovalevyä (USB 2 tai 3) jotka toimivat raidina.
Näillä ohjeilla sain muutettua kaikkiin kuviin alkuperäiset päiväykset. Melko työläs projekti se oli koska minulla oli 55 muutettavaa kuvaa.
Noilla mainituilla työkaluilla olisi onnistunut yhdellä komennolla ilman manuaalista päivämäärien kirjoittelua, jos tiedostoissa oli EXIF-metadatassa alkuperäiset päiväykset tallessa.
jhead -n%Y%m%d-%H%M%S IMG*.jpg
man jhead
Mikähän olisi sopiva työkalu moiseen puuhaan?
Ensin täytyy kuitenkin esikatselussa valita vaakasivu ja sovitus sivulle. Sitten tulostuksessa tulosta tiedostoon ja valitut solut.