dnsmasq | dnsmasq fork with fast ipset/server/address lookup

by infinet C Version: v2.73-11 License: GPL-2.0

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

kandi X-RAY | dnsmasq Summary

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

Dnsmasq matches domain names for --ipsets, --server, and --address options by iterates over linked list. It is good enough for general use, but slows down as the domain names to be matched grows. Here introduce a modified dnsmasq for fast lookup ipset/server/address options. The match time is constant regardless the size of rules. The lookup steps over domain name hierarchy top-down. All labels are stored in open addressing hash tables. Sub-level labels that belong to different parent nodes are stored separately. e.g. yahoo, google, and twitter are in one hash table, while debian and freebsd are in another. The hash table size is power of 2, two hash functions are used to compute hash bucket. For locating a particular label from hash table, two hash values are compared first, only if they are match, should the more expensive string comparison be used to confirm the search.

Support

Quality

Security

License

Reuse

Support

dnsmasq has a low active ecosystem.

It has 316 star(s) with 85 fork(s). There are 36 watchers for this library.

It had no major release in the last 12 months.

There are 5 open issues and 19 have been closed. On average issues are closed in 83 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of dnsmasq is v2.73-11

Quality

dnsmasq has 0 bugs and 0 code smells.

Security

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

dnsmasq code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

dnsmasq is licensed under the GPL-2.0 License. This license is Strong Copyleft.

Strong Copyleft licenses enforce sharing, and you can use them when creating open source projects.

Reuse

dnsmasq releases are available to install and integrate.

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

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dnsmasq Key Features

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dnsmasq Examples and Code Snippets

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Community Discussions

Trending Discussions on dnsmasq

nomad consul traefik https

gdb - how to trap corruption using gdb

Upgrade docker compose file from traefik v1 to traefik v2

ServiceUnavailable: WebSocket connection failure after :server connect for neo4j

SO_MARK valid values

How can I run a local Django dev server with SSL using a .local domain?

How to block DHCPACK from dnsmasq?

Wireless Access Point Communication with phone works for Android but not receiving any requests from IOS?

yaml for pihole container on QNAP

How to know the default value of maximum TTL for Dnsmasq

QUESTION

nomad consul traefik https

Asked 2022-Feb-23 at 22:58

I have a go app that i need to run multiple instances under separate subdomains, i have a working nomad consul setup and got the go app to run and is accessible via a fixed ip address and dedicated port. But i am stuck on how to make it work with the unique subdomains and working https.

So what i'm looking for is like app1 runs on https://app1.example.com app2 runs on https://app2.example.com I tried to use traefic (got it running as a job), DNSmasq but i havent got the above to work.

Any help would be much appriciated.

...

ANSWER

Answered 2022-Feb-23 at 22:58

Traefik supports integrating with Consul through its Consul Catalog provider. See https://learn.hashicorp.com/tutorials/nomad/load-balancing-traefik for an example of how to configure this when running Traefik on Nomad.

The example in that tutorial configures the tag traefik.http.routers.http.rule=Path('/myapp') on the service so that requests for /myapp are routed to the backend service instance. In your case, you'll need to modify this to match on the HTTP Host header so that you can route subdomains to different services. For example:

Source https://stackoverflow.com/questions/71025605

QUESTION

gdb - how to trap corruption using gdb

Asked 2022-Feb-21 at 00:50

I am trying to find where/when corruption occurs in a new program. The program is only 495 lines, and gdb is not helping me debug it. (At least, not with my current knowledge set.) Consider the following :

...

ANSWER

Answered 2022-Feb-21 at 00:50

At the inception of the called process (procNameFromCmdline) we can see that every parameter is incorrect

This most likely means that GDB didn't skip the function prolog (like it's supposed to). Most likely because of this.

If you do another step or next, parameters will suddenly become correct again.

Note that the above bug has been fixed in newer GDB versions, so updating GDB is another solution.

Source https://stackoverflow.com/questions/71164006

QUESTION

Upgrade docker compose file from traefik v1 to traefik v2

Asked 2022-Feb-17 at 22:12

I am currently experimenting with docker swarm in combination with pihole and traefik. My problem is that I am not successful upgrading traefik v1.7.30 to v2.6.1. Does anybody know the correct labels for docker-compose? I was searching on the official documentation but didn't found a configuration for docker-compose.

...

ANSWER

Answered 2022-Feb-17 at 22:12

I successfully managed to upgrade to traefik v2. This is the end result:

Source https://stackoverflow.com/questions/71165235

QUESTION

ServiceUnavailable: WebSocket connection failure after :server connect for neo4j

Asked 2021-Dec-21 at 14:21

I want to launch Neo4j on my machine with dokcer. I downloaded it and did it:

...

ANSWER

Answered 2021-Dec-21 at 14:21

You also need to expose the bolt port from the docker container. The default bolt port is 7687.

Source https://stackoverflow.com/questions/70424753

QUESTION

SO_MARK valid values

Asked 2021-Nov-08 at 23:06

What are valid and meaningful values for SO_MARK? I found some projects use int, some unsigned int (dnsmasq):

...

ANSWER

Answered 2021-Nov-08 at 23:06

The struct sock structure used by the kernel for sockets defines the field set by SO_MARK as: __u32 sk_mark. So I'd say any uint32_t is a meaningful value for this option.

Also, can I see SO_MARK setup in wireshark/tcpdump output?

AFAIK no, the mark is not actually set on the packets (at any layer), it's just set on internal kernel structures used to manage the socket (struct sock) and packet control information (struct sk_buff). You will not see it "on the wire".

You could however use iptables to log marked packets to dmesg, like this answer on Unix & Linux SE suggests:

Source https://stackoverflow.com/questions/69890641

QUESTION

How can I run a local Django dev server with SSL using a .local domain?

Asked 2021-Nov-02 at 16:01

I have a Django site that uses cross-site requests between subdomains. In order for this to work, I need FQDNs and SSL during local development.

I'm using dnsmasq to resolve .local domains, and runserver_plus to run on HTTPS:

...

ANSWER

Answered 2021-Nov-02 at 16:01

After much research, I ended up making a custom script to generate local SSL certs for a wildcard domain such as *.mysite.local. For wildcard to work, a SAN certificate is required. For the cert to be imported into Chrome, I needed a valid CA certificate as well.

This script generates the necessary .crt and .key files, as well as the CA cert.

Source https://stackoverflow.com/questions/69799721

QUESTION

How to block DHCPACK from dnsmasq?

Asked 2021-Oct-11 at 05:34

I was working with a network contains Rpi and esp8266. I am trying to understand the DHCP message handshaking. From the tests, I understood that, esp8266 will initiate the DHCPDISCOVER messages in intervals 2,4,8,16sec if no DHCPOFFER is received. This test was carried out by blocking the specific esp8266 in dnsmasq.conf file.

Now I need to test, what if the DHCPACK is not received at the esp8266. Will they reissue the command DHCPREQUEST? or DHCPDISCOVER?

But DHCP server running in rpi(dnsmasq) has no provision for blocking the DHCPACK signal. So how can I do the test?

I tried to simulate the DHCP server using python but nothing is worked.

...

ANSWER

Answered 2021-Oct-11 at 05:34

Anyway! I got my answer. This may be useful for others and that's why i'm sharing it.

I made the DHCP server using python and I was able to control the DHCP packets sent by the server. The code is below.

Source https://stackoverflow.com/questions/69128688

QUESTION

Wireless Access Point Communication with phone works for Android but not receiving any requests from IOS?

Asked 2021-Sep-20 at 19:18

I'm trying to set up a computer that will start in wireless access point mode, receive SSID and Password from the user on their android/ios device, then join that network that was received from the user on the form.

So far this is working great on Android devices. However, for some reason attempting this on any ios device results in no communication to the wireless access point. It seems as though ios automatically attempts to find the static ip (in this case 192.168.0.20) through lte/wireless data rather than sending the request to my access point.

Here is the following configuration files:

hostapd.conf:

...

ANSWER

Answered 2021-Sep-20 at 19:18

Ok I figured it out. In the script that started the access point, I had

Source https://stackoverflow.com/questions/69259176

QUESTION

yaml for pihole container on QNAP

Asked 2021-Sep-18 at 18:11

I am trying to make the following docker-compose.yaml to run on my QNAP container station.

The following part is working, but after the "restart: unless-stopped" the mess begins.

...

ANSWER

Answered 2021-Sep-18 at 18:11

One of your service names is not correctly indented.

Additionally, you have provided an invalid configuration for ipam for the version 3 file. You can only provide options in version 2 according to the docs.

I will truncate the file for brevity.

Source https://stackoverflow.com/questions/69213958

QUESTION

How to know the default value of maximum TTL for Dnsmasq

Asked 2021-Aug-19 at 19:08

I’m able to set a maximum TTL value with Dnsmasq by --max-ttl. But I wonder what the default value is if I don’t set --max-ttl. Does anyone know about it?

...

ANSWER

Answered 2021-Aug-19 at 19:08

The default value is 0.

The --max-ttl option sets up the max_ttl attribute as witnessed there:

https://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=blob;f=src/option.c;h=3a870970b82335dcfa59b5cf1ad0ce765d4484a3;hb=HEAD#l3061

Source https://stackoverflow.com/questions/68848396

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

Vulnerabilities

No vulnerabilities reported

Install dnsmasq

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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