docs/tutorials: Remove slirp

Signed-off-by: Lokesh Mandvekar <[email protected]>

Author: lsm5

docs/tutorials/performance.md

@@ -171,8 +171,7 @@ You can avoid using _pasta_ in the following ways:
 * Use `--network=host`. No network namespace is created. The container will use the host’s network.
   Note: By using `--network=host`, the container is given full access to local system services such as D-bus and is therefore considered insecure.
 
-Side note: Pasta is faster than the network driver [slirp4netns](https://github.com/containers/podman/blob/main/docs/tutorials/basic_networking.md#slirp4netns).
-Pasta is the default network driver since Podman 5.0.0.
+Side note: Pasta is the default network driver since Podman 5.0.0. Slirp4netns support has been removed since 6.0.0.
 
 Since Podman 5.1.0 the default network driver can be shown with
 

docs/tutorials/rootless_tutorial.md

@@ -18,20 +18,18 @@ For building Podman, see the [build instructions](https://podman.io/getting-star
 
 A user-mode networking tool for unprivileged network namespaces must be installed on the machine in order for Podman to run in a rootless environment.
 
-Podman supports two rootless networking tools: [pasta](https://passt.top/passt/about/#pasta) (provided by [passt](https://passt.top/passt/about/)) and [slirp4netns](https://github.com/rootless-containers/slirp4netns).
+Podman supports two rootless networking tools: [pasta](https://passt.top/passt/about/#pasta) (provided by [passt](https://passt.top/passt/about/)).
 
 pasta is the default since Podman 5.0, while slirp4netns was the default for previous versions. Passt is a more modern replacement for SLIRP that amongst other things fully supports IPv6 and is more secure architecturally (runs in a separate process, uses modern Linux mechanisms for isolation etc).
 
 Passt is [available on most Linux distributions](https://passt.top/passt/about/#availability) via their package distribution software such as `yum`, `dnf`, `apt`, `zypper`, etc. under the name `passt`.  If the package is not available, you can build and install `passt` from [its upstream](https://passt.top/passt/about/#try-it).
 
-Alternatively, slirp4netns can be installed in the same fashion either from your distribution's repositories or by following [the instructions](https://github.com/rootless-containers/slirp4netns?tab=readme-ov-file#install) provided on its GitHub.
-
 The major user-facing difference between the two is outlined in [this blog post](https://blog.podman.io/2024/03/podman-5-0-breaking-changes-in-detail/) and expanded upon in **[podman-network(1)](https://github.com/containers/podman/blob/main/docs/source/markdown/podman-network.1.md#pasta)**.
 
 > [!note]
 > pasta's default situation of not being being able to communicate between the container and the host has been fixed in Podman 5.3: see [Podman 5.3 changes for improved networking experience with pasta](https://blog.podman.io/2024/10/podman-5-3-changes-for-improved-networking-experience-with-pasta/).
 
-The default rootless networking tool can be selected in **[containers.conf(5)](https://github.com/containers/common/blob/main/docs/containers.conf.5.md)** under the `[network]` section with `default_rootless_network_cmd`, which can be set to `pasta` (default) or `slirp4netns`.
+The default rootless networking tool can be selected in **[containers.conf(5)](https://github.com/containers/common/blob/main/docs/containers.conf.5.md)** under the `[network]` section with `default_rootless_network_cmd`, which can be set to `pasta` (default).
 
 ### `/etc/subuid` and `/etc/subgid` configuration