Error Message

"HTTP Status 400 - Bad Request. Invalid character found in the requested target."

The underlying cause of the error was the Tomcat Apache web server configuration filtering out special characters.

Steps to resolve this issue on Linux management server:

a) Stop web server

/opt/VRTSsfmcs/bin/vomsc --stop web

b) Amend following file and append part in bold: /opt/VRTSsfmcs/webgui/tomcat/conf/server.xml

               maxThreads="150" SSLEnabled="true" scheme="https" secure="true"

               clientAuth="false" SSLProtocol="TLSv1.2" sslProtocol="TLS" keystoreFile="${vom.webgui.install.dir}/tomcat/cert/.keystore" compression="on" compressableMimeType="text/html,text/xml,text/plain,text/css,text/javascript" URIEncoding="UTF-8" ciphers="TLS_RSA_WITH_AES_256_CBC_SHA,TLS_RSA_WITH_AES_128_CBC_SHA,SSL_RSA_WITH_RC4_128_SHA,TLS_RSA_WITH_RC4_128_SHA,SSL_RSA_WITH_RC4_128_MD5,TLS_RSA_WITH_RC4_128_MD5" relaxedQueryChars="{}"/>

c) Restart web server:

# /opt/VRTSsfmcs/bin/vomsc --start web

The change will be incorporated into VIOM 7.4.2.500, due in September, 2021