[SOLVED] services required to run vsftpd

ruben_shah_j · 07-11-2018, 01:26 AM

Guys I'm new around here and i have started my career as a linux admin. I want to know what all the services running in the background to run vsftpd service.....

Turbocapitalist · 07-11-2018, 02:19 AM

Two background questions:

Which distro is this for, including version? The reason for asking is that the methods vary.

Why do you plan to fight with FTP instead of using the SFTP server that is built in to OpenSSH and probably already running on your server? The reason for asking is that FTP is not only hard to configure, it cannot be run securely and there are darn few use-cases for it these days.

ruben_shah_j · 07-12-2018, 01:40 AM

The distro Im using is CentOS 7.
Actually I was learning to conigure vsftpd so I thought I will also learn what all the services running at the kernel to run vsftpd.

scasey · 07-12-2018, 02:49 AM

pstree will show how running processes are connected.

See

Code:

man pstree

Turbocapitalist · 07-12-2018, 03:01 AM

Quote:

Originally Posted by ruben_shah_j

The distro Im using is CentOS 7.
Actually I was learning to conigure vsftpd so I thought I will also learn what all the services running at the kernel to run vsftpd.

Those would be system calls. I'm not sure of kernel space stuff, so we can hope that someone else does see this thread. My limited knowledge is that strace can see those. You can attach to a running process or start a fresh process:

Code:

sudo strace -p $(pgrep -o vsftpd)
sudo strace /usr/sbin/vsftpd

However if you are meaning user-space activities then pstree as mentioned would be useful. See in particular the -s option.

Code:

pstree -as $(pgrep -o vsftpd)

Since you are on CentOS 7 the output from utility systemd-analyze may also be of interest.

Code:

systemd-analyze critical-chain vsftpd

What corner case do you have that you still have vsftpd on a machine in 2018?

ruben_shah_j · 07-13-2018, 12:42 AM

Quote:

Originally Posted by scasey

pstree will show how running processes are connected.

See

Code:

man pstree

Thanks for the command it helped me to check the running process

ruben_shah_j · 07-13-2018, 12:45 AM

Quote:

Originally Posted by Turbocapitalist

Those would be system calls. I'm not sure of kernel space stuff, so we can hope that someone else does see this thread. My limited knowledge is that strace can see those. You can attach to a running process or start a fresh process:

Code:

sudo strace -p $(pgrep -o vsftpd)
sudo strace /usr/sbin/vsftpd

However if you are meaning user-space activities then pstree as mentioned would be useful. See in particular the -s option.

Code:

pstree -as $(pgrep -o vsftpd)

Since you are on CentOS 7 the output from utility systemd-analyze may also be of interest.

Code:

systemd-analyze critical-chain vsftpd

What corner case do you have that you still have vsftpd on a machine in 2018?

Thanks for the command that helped me to check the process. Actually I was just learning about vsftpd

.

Turbocapitalist · 07-13-2018, 12:51 AM

Quote:

Originally Posted by ruben_shah_j

Thanks for the command that helped me to check the process. Actually I was just learning about vsftpd

.

No problem. What aspects of vsftpd are you learning?

And again, it's not 1988 any more, which corner case do you have that you still run vsftpd on a machine in 2018?