Also, on macOS, I added this to launchd so it would sync the unix time with the Arduino UNO on startup:
Unfortunately, because this python script is not a "proper" macOS launch daemon, it will not "keep alive", so I still use cron for that. Maybe I'll find a way to fix this later. Maybe I need to move it to LaunchScripts versus LaunchDaemons? Anyway.... think I'll "call it good" on the unix time sync experiment for now... and as we all know....
I am assigned a programming work.It is my first time to use unix.
The task is writing a shell script to interrogate the university Unix operating system to determine the number of "Runnable" processes at any given time.Then append the result,along with a time-stamp,on a log file. Also there are... (1 Reply)
I have a list of interfaces and time the interface was last active. I can't figure out how to convert the time in the second column,
Fa1/14 0
Se0/0/0 0
Fa1/11 0
Fa1/9 0
Fa1/0 0
Se0/0/1 1240401408
Gi1/0 0
Fa0/0 1240401408
Fa1/3 0
Fa1/8 0
Fa1/15 0
Fa1/13 0
Fa1/10 0
Fa1/1 0
Fa1/12... (7 Replies)
Here is two time I have:
Jul 12 16:02:01
Jul 13 01:02:01
and how can I do a simple match to get difference between two time which is 09:00:00
Thanks in advance. (3 Replies)
I'd like to convert a date string in the form of sun aug 19 09:03:10 EDT 2012, to unixtime timestamp using awk.
I tried
This is how each line of the file looks like, different date and time in this format
Sun Aug 19 08:33:45 EDT 2012, user1(108.6.217.236) all: test on the 17th
... (2 Replies)
I needed some help in adding a duration (in seconds) to a start time (in hhmmss format) and a start date (in mmddyy format) in order to get an end date and end time. The concept of a leap year is also to be considered while incrementing the day. The code/ function that I have formed so far is as... (3 Replies)
Hi guys thanks for the help for my previous posts.Now i have a requirement that i download a XMl file which has UTC time stamp.I need to convert UTC time into Unix server timezone.
For ex if the time zone of unix server is CDT then i need to convert into CDT.whatever may be the system time... (5 Replies)
In my further exploration of Arduino, today I decided to install the arduino-cli on my mac today.
https://github.com/arduino/arduino-cli
I followed the instructions for macOS but when I got to this part:
arduino-cli board list
I got the dreaded "Unknown" Fully Qualified Board Name... (1 Reply)
Discussion started by: Neo
1 Replies
LEARN ABOUT MOJAVE
tftpd
TFTPD(8) BSD System Manager's Manual TFTPD(8)NAME
tftpd -- DARPA Internet Trivial File Transfer Protocol server
SYNOPSIS
tftpd [-d] [-g group] [-i] [-l] [-n] [-s directory] [-u user] [directory ...]
DESCRIPTION
tftpd is a server which supports the DARPA Trivial File Transfer Protocol. The TFTP server operates at the port indicated in the 'tftp' ser-
vice description; see services(5). This server should not be started manually; instead, it should be run using launchd(8) using the plist
/System/Library/LaunchDaemons/tftp.plist. It may be started using the launchctl(1) load command; refer to the documentation for that utility
for more information.
The use of tftp(1) does not require an account or password on the remote system. Due to the lack of authentication information, tftpd will
allow only publicly readable files to be accessed. Filenames beginning in ``../'' or containing ``/../'' are not allowed. Files may be
written to only if they already exist and are publicly writable.
Note that this extends the concept of "public" to include all users on all hosts that can be reached through the network; this may not be
appropriate on all systems, and its implications should be considered before enabling tftp service. The server should have the user ID with
the lowest possible privilege.
Access to files may be restricted by invoking tftpd with a list of directories by including up to 20 pathnames as server program arguments in
/System/Library/LaunchDaemons/tftp.plist. In this case access is restricted to files whose names are prefixed by the one of the given direc-
tories. The given directories are also treated as a search path for relative filename requests.
The options are:
-d Enable verbose debugging messages to syslogd(8).
-g group Change gid to that of group on startup. If this isn't specified, the gid is set to that of the user specified with -u.
-i Enable insecure mode, no realpath(3).
-l Logs all requests using syslog(3).
-n Suppresses negative acknowledgement of requests for nonexistent relative filenames.
-s directory
tftpd will chroot(2) to directory on startup. This is recommended for security reasons (so that files other than those in the
/tftpboot directory aren't accessible). If the remote host passes the directory name as part of the file name to transfer, you
may have to create a symbolic link from 'tftpboot' to '.' under /tftpboot.
-u user Change uid to that of user on startup. If -u isn't given, user defaults to ``nobody''. If -g isn't also given, change the gid to
that of user as well.
SEE ALSO tftp(1), launchd(8), launchctl(1), launchd.plist(5)
The TFTP Protocol (Revision 2), RFC, 1350, July 1992.
TFTP Option Extension, RFC, 2347, May 1998.
TFTP Blocksize Option, RFC, 2348, May 1998.
TFTP Timeout Interval and Transfer Size Options, RFC, 2349, May 1998.
HISTORY
The tftpd command appeared in 4.2BSD.
The -s flag appeared in NetBSD 1.0.
The -g and -u flags appeared in NetBSD 1.4.
IPv6 support was implemented by WIDE/KAME project in 1999.
TFTP options were implemented by Wasabi Systems, Inc., in 2003, and first appeared in NetBSD 2.0 .
BUGS
Files larger than 33488896 octets (65535 blocks) cannot be transferred without client and server supporting blocksize negotiation (RFCs 2347
and 2348).
Many tftp clients will not transfer files over 16744448 octets (32767 blocks).
SECURITY CONSIDERATIONS
You are strongly advised to set up tftpd using the -s flag in conjunction with the name of the directory that contains the files that tftpd
will serve to remote hosts (e.g., /tftpboot). This ensures that only the files that should be served to remote hosts can be accessed by
them.
Because there is no user-login or validation within the TFTP protocol, the remote site will probably have some sort of file-access restric-
tions in place. The exact methods are specific to each site and therefore difficult to document here.
BSD June 11, 2003 BSD