dhcpd | Don't write software in C/C!!!

by fritz0705 C Version: Current License: BSD-2-Clause

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | dhcpd Summary

dhcpd is a C library. dhcpd has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

Simple, configurable, SQLite3-backed DHCP daemon. No enterprise grade features like IPC to BIND (at the moment).

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Quality

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Support

dhcpd has a low active ecosystem.

It has 5 star(s) with 3 fork(s). There are 1 watchers for this library.

It had no major release in the last 6 months.

There are 1 open issues and 0 have been closed. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of dhcpd is current.

Quality

dhcpd has no bugs reported.

Security

dhcpd has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

dhcpd is licensed under the BSD-2-Clause License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

dhcpd releases are not available. You will need to build from source code and install.

Installation instructions are not available. Examples and code snippets are available.

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dhcpd Key Features

No Key Features are available at this moment for dhcpd.

dhcpd Examples and Code Snippets

No Code Snippets are available at this moment for dhcpd.

Community Discussions

Trending Discussions on dhcpd

Keep file permissions on dhcpd.leases after reboot on Linux

Edit dhcpd.conf file using one line shell command

Regex multisubstrings from string

ISC-DHCP and PowerDNS for DDNS "Unable to add forward map to :unexpected error

Isc-dhcp-server not starting error: not configured to listen to any interfaces

Python printing only one file

Collecting arrays of unique data items from a bash loop -- readarray not appending?

subprocess.call always returns an error when script is run by cron

Syntax for Lookahead and Lookbehind in Grok Custom Pattern

how can I prevent systemd-networkd from sending client identifier?

QUESTION

Keep file permissions on dhcpd.leases after reboot on Linux

Asked 2021-Mar-03 at 15:45

We have a Linux machine on which we run our .NET Core app. This app is a web UI which is used to display and configure a system of EEPROMs. The app reads the dhcpd.leases file, located in the directory /var/lib/dhcp, and displays the IP address of each EEPROM in the UI.

When a new EEPROM is added to the system, its IP address is added to the dhcpd.leases file and thus it shows up in the UI. But when an EEPROM is removed from the system, its IP address isn't removed from the dhcpd.leases file and thus it continues to be shown in the UI.

We want to allow the user to be able to remove an EEPROM from the UI when it has been physically removed from the system.

When a user removes an EEPROM from the UI, we want its IP address to be removed from the dhcpd.leases so that it won't be shown again.

This isn't possible, since the default permissions on the file give read and write permission only to the owner (there's no owner listed), give read-only permission to the dhcpd group and other users, and don't allow it to be executed. By running the command sudo chmod 777 /var/lib/dhcp/dhcpd.leases, the file permissions can be changed and thus the app is able to modify the file as we want it to. However, whenever the system reboots, the file permissions are reverted. Our Linux machine uses systemd services to start the app whenever the system starts up, so I thought creating a systemd service would be the best way to ensure the command to change the file permissions is executed when the system starts up. I created a file named dhcp.service in the directory /etc/systemd/system which looks like this:

...

ANSWER

Answered 2021-Mar-03 at 15:45

We made changes to our systemd service:

Source https://stackoverflow.com/questions/66441992

QUESTION

Edit dhcpd.conf file using one line shell command

Asked 2021-Jan-16 at 11:47

I am looking one line shell command to edit dhcpd.conf lease time. I want to edit default-lease-time and max-lease-time to subnet ip 172.16.31.0. Any help is much appreciated.

Sample conf file:

...

ANSWER

Answered 2021-Jan-16 at 11:46

Using sed:

Source https://stackoverflow.com/questions/65748884

QUESTION

Regex multisubstrings from string

Asked 2020-Dec-27 at 16:18

I should be able to work this out, but I'm obviously missing something.

Given this line:

...

ANSWER

Answered 2020-Dec-27 at 16:18

r = re.compile (r"(\d{4}-\d{2}-\S{17}).*dhcpd(.+)$")
print( r.findall(string) )

Source https://stackoverflow.com/questions/65467727

QUESTION

ISC-DHCP and PowerDNS for DDNS "Unable to add forward map to :unexpected error

Asked 2020-Sep-16 at 23:05

I have trouble implementing isc-dhcp with powerdns for ddns, no matter how many time i've change to configuration, it will always came back with this error "Unable to add forward map from to : operation canceled"

then this "Unable to add forward map from to : unexpected error"

this is my dhcpd.conf file

...

ANSWER

Answered 2020-Sep-16 at 23:05

Ok, i found solution myself, so i'm gonna answer this, turns out my powerdns authoritative server run under different port because i run powerdns-recursor under the same machine as powerdns authoritative. so the solution is add another NIC and assign another ip to that new NIC and problem solved.

Source https://stackoverflow.com/questions/63922043

QUESTION

Isc-dhcp-server not starting error: not configured to listen to any interfaces

Asked 2020-Mar-18 at 00:15

I have installed Isc-dhcp-server and configured the files accordingly still it is showing the error that its not configured to listen to any interfaces. i have ubuntu 17.04 64 bit

Interface file : ...

ANSWER

Answered 2020-Mar-18 at 00:15

Well it seems like your interface enp2s0 isn't up. You can check this by using ifconfig.

You can fix it by putting: auto enp2s0 under auto lo in /etc/network/interfaces

Source https://stackoverflow.com/questions/48500779

QUESTION

Python printing only one file

Asked 2019-Oct-24 at 10:52

Can someone explain me, why my function out() prints only one file? how can i fix, bcs it should print a lot of files recursively from 2019 DIR

...

ANSWER

Answered 2019-Oct-24 at 10:51

This should work

Source https://stackoverflow.com/questions/58539638

QUESTION

Collecting arrays of unique data items from a bash loop -- readarray not appending?

Asked 2019-Jul-21 at 22:47

I have been tasked with processing a text file to retrieve only the relevant detail(s) using Bash. Following is the example contents of the text file:

...

ANSWER

Answered 2019-Jul-21 at 16:26

A working implementation might look like:

Source https://stackoverflow.com/questions/57134633

QUESTION

subprocess.call always returns an error when script is run by cron

Asked 2019-Jun-14 at 12:09

I have a simple python script which I am using to automate updates to a dhcp config file.

The Idea is that it puts the new config file in the dhcpd directory runs a check and if that returns ok it can restart the service. My code looks like this:

...

ANSWER

Answered 2019-Jun-14 at 12:05

Use absolute paths instead of just command names like dhcpd in your script.

Try if your script still works when you call it after setting an empty PATH.

Source https://stackoverflow.com/questions/56597084

QUESTION

Syntax for Lookahead and Lookbehind in Grok Custom Pattern

Asked 2019-Apr-11 at 15:22

I'm trying to use a lookbehind and a lookahead in a Grok custom pattern and getting pattern match errors in the Grok debugger that I cannot resolve.

This is for archiving system logs. I am currently trying to parse the postgrey application.

Given data such as:

...

ANSWER

Answered 2019-Apr-11 at 15:22

As a work around, I have resorted to modifying my syntax, using a custom patterns file, and referencing it in each filter using the patterns_dir directive.

Ex. My pattern:

Source https://stackoverflow.com/questions/55616142

QUESTION

how can I prevent systemd-networkd from sending client identifier?

Asked 2019-Mar-12 at 08:15

I have a machine with CoreOS 1800(or 1855) installed onto disk, and with following systemd-networkd config (there is only one network interface in the machine):

...

ANSWER

Answered 2018-Oct-16 at 19:08

Have you tried setting the client identifier to (empty)?

Source https://stackoverflow.com/questions/52548027

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install dhcpd

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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