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Recent content by marsd
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New Shells....
fse shell: The shell that is constantly updated with a listing of adult websites and can do nothing but deliver the content to the user environment VIEWER binary as argument in loop.. Might be pretty popular.- marsd
- Post #9
- Forum: Linux (server)
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ARRRRRRRRRRRRRGH!
The lesson here is: * Don't run stuff you don't know. * Don't run things you don't monitor. * Don't trust an internal monitor. * Keep up to date on software you use. * Audit software you use. * Know what software you use. * Always doubt. All of this points to the long argued admin assertion of...- marsd
- Post #22
- Forum: Linux (server)
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Ethical or not?
~ 98 I had a similar experience which can be compared unfavorably to the OP's doctrine. I inherited a k12 network with personally marginal unix skills that was utilizing ancient RH installations for a potpourri of services , FTP, mail,DNS, etc.. The students that had put the network together...- marsd
- Post #39
- Forum: Security, hacker detection & forensics
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User Directory Ceiling
Very difficult IMO to limit ssh access in the way you describe. This is just an encrypted shell session over a tcp connection after all. Unlike ftp which was created with the idea of access control based on file system traversal, ssh is a replacement for the old r services (*login and *sh)...- marsd
- Post #4
- Forum: Linux (server)
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Search a File
Line oriented searches are going to be best accomplished using stdio friendly functions as Salem suggested except in very special cases. Otherwise if all you need is an offset you could read blocks of data using fread or read and record an offset counter. Might be faster, who knows... -
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ssh hammering help
Dictionary attacks are painful but not prohibitively so. A couple of pointers. * Root cannot login via ssh. * Users must use keys (no password based auth) and policy regarding strong passwords and key safety are enforced. * Limit connects to port 22 in kernelspace via netfilter and plug in a...- marsd
- Post #10
- Forum: Linux (server)
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Machine compromised
The 'I'm rooted three step'. Remove this machine from any network. Boot from knoppix or some purpose built forensics bootable. Do forensics analysis and follow up. HTH- marsd
- Post #2
- Forum: Linux (server)
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checking server temprerature
http://freshmeat.net/projects/lm_sensors/- marsd
- Post #3
- Forum: Linux (server)
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Create a TCL Script for a Cisco 5850
http://sourceforge.net/projects/libcisco -
Numeric data
Correction: Everything is an object that looks like a string ;) -
error on socket creation "no such process"
strace or gdb the program. Start with strace -f $progname and move from there. -
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LVM recovery
Okay. There are three logical layers to LVM: physical, volume, and logical. If you use pvscan,vgscan,and lv? to decipher your problem and then have questions, please let us know. Please post error messages and other errata. In the meantine: http://www.tldp.org/HOWTO/LVM-HOWTO/- marsd
- Post #5
- Forum: Linux (server)
