need to help for cracking ELF linux

[netseeker]

Hi all,

I am pretty new to linux reversing. I have a target whcih I want to choose between either following techniques :

1- change a constant string
2- change a JNE to JMP

I analysed my target using IDA and found the correct place to patch. but since the ELF file is "stripped" I am not quite sure if I change the JNE to JMP in HEX mode, does it solve my problem?.

the other way is, to change the constant string in HEX mode but the string needs to be the same length or less.

my problem : I want a reliable debugger/disassembler running under linux for doing such task(either changing string without hassale or change OP codes). which tool do you suggest?

Best,