added post for enabling ZFS send and recv

content/posts/zfs-send-recv.md

@@ -0,0 +1,71 @@
+---
+
+title: "ZFS send and recv"
+date: 2022-07-23T07:00:00+05:30
+draft: false
+toc: true
+
+---
+
+## Step 0000: Configure SSH Access
+
+**On the sender's system:**
+
+```bash
+cd ~/.ssh/
+ssh-keygen -t ed25519 -f zfs_send
+```
+
+```bash
+echo "
+Host hostname.localdomain
+        Hostname <ip-addr>
+        User root
+        IdentityFile ~/.ssh/zfs_send
+        Port <port>
+" | tee -a ~/.ssh/config
+```
+
+---
+
+**On the receiving system:**
+
+`sudoedit /etc/ssh/sshd_config`
+
+```
+[...]
+PermitRootLogin yes
+[...]
+```
+
+```bash
+user $ sudo -i
+
+root # echo "zfs_send.pub" | tee -a ~/.ssh/authorized_keys
+```
+
+`sudo systemctl restart sshd`
+
+**This guide was possible because of the _[amazing documentation of Klara Systems](https://klarasystems.com/articles/introduction-to-zfs-replication/)_.**
+
+
+## Step 0001: Delegate ZFS administration permissions to unprivileged users
+
+**On the sender's system:**
+
+```bash
+sudo zfs allow -u USER send,snapshot,hold POOL
+```
+
+**On the receiving end:**
+
+```bash
+sudo zfs allow -u USER compression,mountpoint,create,mount,receive POOL
+```
+
+## Step 0010: Send
+
+```zfs
+sudo zfs snapshot <vol>@sendtest
+zfs sent -v <vol>@sendtest | ssh hostname.localdomain zfs receive <pool>/backups/<vol-name>
+```