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Update README.md

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2020-10-24 09:19:42 -05:00
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@@ -483,9 +483,15 @@ Why do I get a bunch of `No file descriptors available (os error 24)` errors?
There are a few potential causes of this error. The simplest is that your operating system sets an open file limit that is aggressively low. Through personal testing, I've found that `4096` is a reasonable open file limit (this will vary based on your exact setup).
This particular problem can be solved by increasing the number of open files your OS allows. On my Kali install, the default was `1024`, and I know some MacOS installs use `256` 😕. There are a few options to increase the number of open files, but I'll show two here and [link to more](https://www.tecmint.com/increase-set-open-file-limits-in-linux/) (linux assumed).
There are quite a few options to solve this particular problem, of which a handful are shown below.
One option is to edit `/etc/security/limits.conf` to include the two lines below. `*` is all users. `hard` and `soft` indicate the hard and soft limits for the OS. `nofile` is the number of open files option.
We'll start by increasing the number of open files the OS allows. On my Kali install, the default was `1024`, and I know some MacOS installs use `256` 😕.
One option to up the limit is to edit `/etc/security/limits.conf` so that it includes the two lines below.
- `*` represents all users
- `hard` and `soft` indicate the hard and soft limits for the OS
- `nofile` is the number of open files option.
```
/etc/security/limits.conf
@@ -496,7 +502,7 @@ One option is to edit `/etc/security/limits.conf` to include the two lines below
...
```
A faster option, that is **not** persistent is to simply use the `ulimit` command to change the setting.
A faster option, that is **not** persistent, is to simply use the `ulimit` command to change the setting.
```
ulimit -n 4096
@@ -528,4 +534,4 @@ This allows fast cycling of sockets in time_wait state and re-using them. Make s
```
sudo sysctl net.ipv4.tcp_tw_reuse=1
```
```