Scope
- YADE implements a Virtual File System that supports a number of data providers, e.g. SMB/CIFS protocol implementation by Samba JCifs, SFTP protocol implemented by JSch library.
- Data providers can make use of individual Java properties, e.g.
- for SMB/CIFS to specify compatibility levels for authentication with NTLMv2 and newer
- for SFTP to specify packet compression to zlib, compression level 9 or specific ciphers such as blowfish-cbc, aes128-ctr etc.
- YADE allows to specify Java System Property files at a global level and individually per file transfer fragment.
- YADE allows to specify Java Application Property files as configuration files that are applied individually per file transfer fragment.
YADE Java System Property Files
YADE Configuration by System Property Files
The Java properties configured using the system_property_files
options are global properties available to all protocol fragments. The system_property_files
option can be assigned a semicolon separated list of property files. A property file can contain one or more properties as key value pairs.
Example
Sample System Properties
Following are two examples of such system property files that contain global Java properties for a data provider. One system property file can also contain properties for multiple data providers. At run-time the YADE will automatically apply applicable properties to the respective data provider, e.g. SFTP properties to the JSch data provider and SMB properties to the JCifs data provider.
sftp_system.properties
System Propery File sftp_system.proprerties# SFTP properties known_hosts=/home/gollum.sos/.ssh/known_hosts remote_exec=true
smb_system.properties
System Propery File smb_system.properties# SMB properties jcifs.smb.client.useExtendedSecurity=false
Sample YADE Configuration
Explanations
- The YADE settings consist of the following types of sections:
- Globals section
- Protocol Fragment sections
- Transfer Profile sections
- In the sample
yade_settings.ini
file, under the globals section the system property files are configure as semicolon separated list of files by the optionsystem_property_files
. - The properties defined in the files
sftp_system.properties
andsmb_system.properties
will be available to all protocol fragments. The
known_hosts
andprotocol_fragment_sftp@sftp-uk.sos
andprotocol_fragment_sftp@sftp-japan.sos
.
YADE Java Application Property Files
YADE Confguration by Application Property Files
The protocol fragment specific Java properties can be configured using the configuration_files
option at protocol fragment level. The configuration_files
option can be assigned a semicolon separated list of property files. A property file can contain one or more properties as key value pairs.
Example
Sample Application Properties for Data Provider
- SFTP packet compression configuration sftp_zlip_compression.properties
# ssh packet compression compression.s2c=zlib@openssh.com,zlib,none compression.c2s=zlib@openssh.com,zlib,none compression_level=9
- SFTP Cipher configuration sftp_cipher_aes128-ctr.properties
# ssh transfer cipher cipher=aes256-ctr
Sample YADE Configuration
Explanations
- The global system property file will be applicable as explained in the previous chapter on YADE Java System Property Files.
- In the YADE Settings sample two configuration files are created, both of them include configuration properties for the SFTP data provider;
sftp_zlip_compression.properties
: effects packet compression during transfer by SFTP data provider.sftp_cipher_aes128-ctr.properties
: effects Cipher used by SFTP data provider.
The
sftp_zlip_compression.properties
is referred to by the protocol fragmentprotocol_fragment_sftp@sftp-uk.sos
using theconfiguration_files
option, thus the packet compression properties will only be applicable to the transfers using protocol fragmentprotocol_fragment_sftp@sftp-uk.sos
, e.g.CopyLocal2SFTPUKSOS.
Similarly the
sftp_cipher_aes128-ctr.properties
is referred to by the protocol fragmentprotocol_fragment_sftp@sftp-japan.sos
using theconfiguration_files
option, thus the cipher aes128-ctr will only be applicable to the transfers using the protocol fragmentprotocol_fragment_sftp@sftp-japan.sos
, e.g.CopySFTPJapanSOS2Local.
At run-time the YADE will automatically apply applicable properties to respective data provider, e.g. SFTP properties to the JSch data provider and SMB properties to the JCifs data provider.
References
Change Management References