How can I change the net.schmizz.sshj logging level?
Is it possible to change the logger level for the default configuration or disable it for the sshj library of my code so far [
Config config = new DefaultConfig();
config.setKeepAliveProvider(KeepAliveProvider.KEEP_ALIVE);
SSHClient sshClient = new SSHClient(config);
and when i try to execute the above code i get the following problems:
[main] WARN net.schmizz.sshj.DefaultConfig - Illegal key size
[main] WARN net.schmizz.sshj.DefaultConfig - Illegal key size
[main] WARN net.schmizz.sshj.DefaultConfig - Illegal key size
[main] WARN net.schmizz.sshj.DefaultConfig - Illegal key size
[main] WARN net.schmizz.sshj.DefaultConfig - Illegal key size
[main] WARN net.schmizz.sshj.DefaultConfig - No such algorithm: IDEA/CBC/NoPadding
[main] WARN net.schmizz.sshj.DefaultConfig - No such algorithm: IDEA/CTR/NoPadding
[main] WARN net.schmizz.sshj.DefaultConfig - Illegal key size
[main] WARN net.schmizz.sshj.DefaultConfig - Illegal key size
[main] WARN net.schmizz.sshj.DefaultConfig - Illegal key size
[main] WARN net.schmizz.sshj.DefaultConfig - Illegal key size
[main] WARN net.schmizz.sshj.DefaultConfig - Illegal key size
[main] WARN net.schmizz.sshj.DefaultConfig - Illegal key size
[main] WARN net.schmizz.sshj.DefaultConfig - Illegal key size
[main] WARN net.schmizz.sshj.DefaultConfig - Illegal key size
[main] WARN net.schmizz.sshj.DefaultConfig - Illegal key size
[main] WARN net.schmizz.sshj.DefaultConfig - Illegal key size or default parameters
[main] WARN net.schmizz.sshj.DefaultConfig - Disabling high-strength ciphers: cipher strengths apparently limited by JCE policy
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2 answers
SSHJ uses the slf4j registration API. This means you can customize it with any registration implementation that implements slf4j. This is usually an error log.
You can customize this by adding a logback.xml file containing, for example, the following configuration:
<configuration>
<appender name="STDOUT" class="ch.qos.logback.core.ConsoleAppender">
<encoder>
<pattern>%d{yyyy-MM-dd HH:mm:ss.SSS} [%.-20thread] %-5level %logger{36} - %msg%n</pattern>
</encoder>
</appender>
<root level="info">
<appender-ref ref="STDOUT"/>
</root>
<logger name="net.schmizz.sshj" level="error"/>
</configuration>
By the way, the reason you are seeing these messages is because you are running without unlimited crypto extensions.
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