system config

I‘m using RHEL and whenever I type the command lsnrctl; I get the following error:

lsnrctl: error while loading shared libraries: /u01/app/oracle/product/11.2.0/dbhome_1/lib/libclntsh.so.11.1:
cannot restore segment prot after reloc: Permission denied

How do I fix this problem?

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Q. I’ve Debian Linux server and whenever someone trying to ssh into this box, they get an error as follows and server closes the connection:

System bootup in progress -please wait

How do I fix this problem and allow ssh login?

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Q. I’d like to get more information about my wireless settings stored under CentOS / RHEL / Fedora Linux. Where Does Linux Save Wireless Card Settings?

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