Hi everybody,
I have to write a module for matching in netfilter , extending the netfilter but I'm facing some problems can somebody guide me in that. I know that I need to write matching module working in kernel space and a program in userspace. I went through the HOWTO on netfilter-hacking but... (0 Replies)
Hello friends i'm trying to extend iptables to include a target by which we can change the packet type field of a packet.
For this i created a kernel module and a userspace extension.
Now i face the problem that when i try to invoke iptable with the target i created i get an error message saying... (1 Reply)
Hi all,
i need to extend /var file system on my solaris 10 box
/var is part of rootdg
current size 2GB
Required size 6GB
layout mirror
veritas 4.1
solaris 5.10
pls let me know the steps and the procedure to follow.
regards
Ajay S (2 Replies)
Hi to all
i want to increase the /usr size.
but, it is mirrored on hdisk0 and hdisk1.
i know that chfs will work, but i am not confident about mirroring.
can anyone tell me the procedure.
thanks (2 Replies)
Ok, I'm a newbie to AIX so I just want to make sure my thinking is correct with regards to this issue. Any insight you guys could give would be appreciated. A main question I have is should I shutdown the database to extend this LV?
The filesystem the dba wants to extend is
/dev/fslv83 ... (3 Replies)
Hi All,
I have one VG on single PV /dev/sda3 with two LV
Physically after /dev/sda3 i have 40G unallocated
I want to extend /dev/sda3 + 40G and extend its VG, then extend last LV in VG to take new free space
What is correct procedure?
// I cannot create second PV after /dev/sda3 because of... (5 Replies)
Hi Guys,
Hope everyone is doing great. We've few servers on HP-UX. I'm not sure of extending file systems in HP-UX. Please help me. It could be helpful If you provide the commmand basing on the details below. Thanks in Advance.
# hostname
*******
# date
Sun Sep 7 14:39:59 EDT 2014
#... (2 Replies)
I've to install Oracle binaries (I'm oracle DBA) and for that I've extend swap space in my home computer. My situation is like this.
# parted -s /dev/sda print free
Model: ATA VBOX HARDDISK (scsi)
Disk /dev/sda: 38.7GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
... (1 Reply)
I've to install Oracle binaries (I'm oracle DBA) and for that I've extend swap space in my home computer. My situation is like this.
# parted -s /dev/sda print free
Model: ATA VBOX HARDDISK (scsi)
Disk /dev/sda: 38.7GB
Sector size (logical/physical): 512B/512B
Partition Table: msdos
... (8 Replies)
Discussion started by: Mukul Sharma
8 Replies
LEARN ABOUT OSF1
fd
fd(4) Kernel Interfaces Manual fd(4)NAME
fd - file descriptor files
DESCRIPTION
The /dev/fd file system is a pseudo-file system layered beneath the Virtual File System (VFS). The file descriptor files (fd*) are those
files that are accessible through file descriptors. The file descriptors use the naming convention /dev/fd/0, /dev/fd/1, /dev/fd/2 and so
on up to any number.
To make the /dev/fd file system known to the operating system, you must create the directory with the correct privileges, then you must
mount the file system. The following steps describe how to create the directory, mount the file system both manually and automatically,
and how to dismount the file system: Create the directory using the mkdir and chmod commands: mkdir /dev/fd; chmod 777 /dev/fd Mount the
file system manually using the mount command: mount -t fdfs /dev/fd /dev/fd Mount the file system automatically by editing either the
/etc/fstab file or the /sbin/bcheckrc file.
Add the following entry to the /etc/fstab file: /dev/fd /dev/fd fdfs rw 0 0 This entry mounts the pseudodevice /dev/fd on the
/dev/fd directory with read/write privileges. The file system type is fdfs and the zeros (0) in the remaining fields specify that
the file system is not to be backed up nor can file system checks be performed by the fsck command as this is a virtual file system.
Add the following entry to the /sbin/bcheckrc file: # # mount fdfs # echo 'Mounting /dev/fd filesystem' /sbin/mount -a -v -t fdfs
Again, the /dev/fd file system should not be mounted in this manner if an entire system is to be backed up starting from the root
directory. Dismount the file system using the umount command: umount /dev/fd For correct truncate() behavior on fd files, you must
load your program using the -lsys5 flag.
RESTRICTIONS
The /dev/fd file descriptors should not be exported.
EXAMPLES
The following example show how the open and dup functions have the same effect if file descriptor n is opened:
fd = open("/dev/fd/n", mode);
fd = dup(n);
In the above example, the open function is equal to the creat function and mode is ignored. Using the dup function, subsequent reads or
writes on the fd file descriptor files fail unless the original file descriptor enables the operation.
ERRORS
The following error condition exists: The file descriptor is not valid.
RELATED INFORMATION
Commands: chmod(1), mkdir(1), mount(8).
Functions: creat(2), dup(2), open(2). delim off
fd(4)