Hi Folks,
I am trying to write a small compiler for syntax checking in C programs. I would like to attach a Context Free Grammar(CFC) to it.
Does any one know as to how I should associate or map the Grammar with the C program????
A quick help would help me a lot......
Thanks,
Nisha (4 Replies)
I know that this is a relative question but can someone give me an idea of what would be considered a high number of context switches?
I am running vmstat and show a cs value of between 5000 and 6000 on a 4 processor system. How can I deduce if this number is high or not?
Also, the timeslice... (2 Replies)
there are several same servers(process) on more than one server(machine) providing the same service.
we store session/context within the server(process), if the same client login, he will be directed to the very server service for him last time.
But, if a server(machine or process) down, the... (1 Reply)
1. The problem statement, all variables and given/known data:
Type `vmstat -s; vmstat -n 1 5; vmstat -n 1 5; vmstat
-s` to your Ruby interpreter. Then terminate your Ruby session. Run the Unix com-
mand vmstat -s; vmstat -n 1 5; vmstat -s in the same terminal window you had
been using for... (2 Replies)
Ive got multiple PCs, sharing an NFS mounted home dir. For certain apps I would like to keep the config files host specific. Easy solution is to create symlinks to local folders for configs. Ideally I would still want the .config files to reside in the user home folder.
Is it possible to... (2 Replies)
I have a file that is a sort library in the format:
##def title1
content1
stuff1
content2
stuff2
##enddef
##def title2
etc..
I want to grep def and content and pull some trailing context from content
so the result would look something like: (1 Reply)
Hi Folks,
I have one query is that I can reach to a location of a file named Integration_Config_3.properties through putty
cd /usr/local/pos/jlan/config/byStore/il
ls -ltr
I can open this file in vi editior also
vi Integration_Config_3.properties
But now my query is I want to add the... (3 Replies)
If suppose a middle level interrupt is being serviced and a high priority interrupts comes in then in that case what all process will take place.
The interrupt context switch will happen. But where will the interrupt context be saved?
Is there something called as part process data area? (4 Replies)
I wrote this code, questions follow
#! /bin/bash -f
# Purpose - to show how if syntax is used within an awk
clear;
ls -l;
echo "This will print out the first two columns of the inputted file in this directory";
echo "Enter filename found in this directory";
read input;
... (11 Replies)
Discussion started by: Seth
11 Replies
LEARN ABOUT MOJAVE
ftpd_selinux
ftpd_selinux(8) ftpd SELinux policy documentation ftpd_selinux(8)NAME
ftpd_selinux - Security-Enhanced Linux policy for ftp daemons.
DESCRIPTION
Security-Enhanced Linux provides security for ftp daemons via flexible mandatory access control.
FILE_CONTEXTS
SELinux requires files to have a file type. File types may be specified with semanage and are restored with restorecon. Policy governs the
access that daemons have to files.
Allow ftp servers to read the /var/ftp directory by adding the public_content_t file type to the directory and by restoring the file type.
semanage fcontext -a -t public_content_t "/var/ftp(/.*)?"
restorecon -F -R -v /var/ftp
Allow ftp servers to read and write /var/tmp/incoming by adding the public_content_rw_t type to the directory and by restoring the file
type. This also requires the allow_ftpd_anon_write boolean to be set.
semanage fcontext -a -t public_content_rw_t "/var/ftp/incoming(/.*)?"
restorecon -F -R -v /var/ftp/incoming
BOOLEANS
SELinux policy is based on least privilege required and may also be customizable by setting a boolean with setsebool.
Allow ftp servers to read and write files with the public_content_rw_t file type.
setsebool -P allow_ftpd_anon_write on
Allow ftp servers to read or write files in the user home directories.
setsebool -P ftp_home_dir on
Allow ftp servers to read or write all files on the system.
setsebool -P allow_ftpd_full_access on
Allow ftp servers to use cifs for public file transfer services.
setsebool -P allow_ftpd_use_cifs on
Allow ftp servers to use nfs for public file transfer services.
setsebool -P allow_ftpd_use_nfs on
system-config-selinux is a GUI tool available to customize SELinux policy settings.
AUTHOR
This manual page was written by Dan Walsh <dwalsh@redhat.com>.
SEE ALSO selinux(8), ftpd(8), setsebool(8), semanage(8), restorecon(8)dwalsh@redhat.com 17 Jan 2005 ftpd_selinux(8)