service daemons: language fixup

Very minor language updates to the "Important Service Daemons" section
of the docs

Signed-off-by: Dylan Whyte <d.whyte@proxmox.com>

pmg-smtp-filter.adoc

@@ -23,14 +23,14 @@ pmg-smtp-filter - Proxmox SMTP Filter Daemon
 ============================================
 endif::manvolnum[]
 
-This is the Proxmox SMTP filter daemon, which does the actual spam
+The Proxmox SMTP Filter Daemon does the actual spam
-filtering using the SpamAssassin and the rule database. It listens on
+filtering, using {spamassassin} and the rule database. It listens on
 127.0.0.1:10023 and 127.0.0.1:10024. The daemon listens to a local
-address only, so you cannot access it from outside.
+address only, so you cannot access it from the outside.
 
 With our postfix configuration, incoming mails are sent to
 127.0.0.1:10024. Outgoing (trusted) mails are sent to
-127.0.0.1:10023. After filtering, mails are reinjected into postfix at
+127.0.0.1:10023. After filtering, mails are resent to Postfix at
 127.0.0.1:10025.
 
 

pmgdaemon.adoc

@@ -27,7 +27,7 @@ This daemon exposes the whole {pmg} API on `127.0.0.1:85`. It runs as
 `root` and has permission to do all privileged operations.
 
 NOTE: The daemon listens to a local address only, so you cannot access
-it from outside. The `pmgproxy` daemon exposes the API to the outside
+it from the outside. The `pmgproxy` daemon exposes the API to the outside
 world.
 
 

pmgmirror.adoc

@@ -23,7 +23,7 @@ pmgmirror - Database Mirror Daemon
 ==================================
 endif::manvolnum[]
 
-{pmg} uses an application specific asynchronous replication
+{pmg} uses an application-specific, asynchronous replication
 algorithm to replicate the database to all cluster nodes.
 
 The daemon uses the ssh tunnel provided by 'pmgtunnel' to access

pmgpolicy.adoc

@@ -25,8 +25,8 @@ endif::manvolnum[]
 
 This daemon implements the Postfix SMTP access policy delegation
 protocol on `127.0.0.1:10022`. It listens to a local address
-only, so you cannot access it from outside. We configure Postfix to
+only, so you cannot access it from the outside. We configure Postfix to
-use this service for greylisting and as SPF policy server.
+use this service for greylisting and as an SPF policy server.
 
 
 ifdef::manvolnum[]

pmgproxy.adoc

@@ -23,12 +23,12 @@ pmgproxy - Proxmox Mail Gateway API Proxy Daemon
 ================================================
 endif::manvolnum[]
 
-This daemon exposes the whole {pmg} API on TCP port 8006 using
+This daemon exposes the whole {pmg} API on TCP port 8006, using
 HTTPS. It runs as user `www-data` and has very limited permissions.
 Operations requiring more permissions are forwarded to the local
 `pmgdaemon`.
 
-Requests targeted for other nodes are automatically forwarded to those
+Requests targeted at other nodes are automatically forwarded to those
 nodes. This means that you can manage your whole cluster by connecting
 to a single {pmg} node.
 
@@ -76,18 +76,18 @@ By default the `pmgproxy` daemon listens on the wildcard address and accepts
 connections from both IPv4 and IPv6 clients.
 
 
-By setting `LISTEN_IP` in `/etc/default/pmgproxy` you can control to which IP
+By setting `LISTEN_IP` in `/etc/default/pmgproxy`, you can control which IP
-address the `pmgproxy` daemon binds. The IP-address needs to be configured on
+address the `pmgproxy` daemon binds to. The IP-address needs to be configured on
 the system.
 
 Setting the `sysctl` `net.ipv6.bindv6only` to the non-default `1` will cause
-the daemons to only accept connection from IPv6 clients, while  usually also
+the daemons to only accept connections from IPv6 clients, while usually also
-causing lots of other issues. If you set this configuration we recommend to
+causing lots of other issues. If you set this configuration, we recommend either
-either remove the `sysctl` setting, or set the `LISTEN_IP` to `0.0.0.0` (which
+removing the `sysctl` setting, or setting the `LISTEN_IP` to `0.0.0.0` (which
-will only allow IPv4 clients).
+will allow only IPv4 clients).
 
-`LISTEN_IP` can be used to only to restricting the socket to an internal
+`LISTEN_IP` can be used to restrict the socket to an internal
-interface and thus have less exposure to the public internet, for example:
+interface, thus leaving less exposure to the public internet, for example:
 
 ----
 LISTEN_IP="192.0.2.1"
@@ -107,8 +107,8 @@ LISTEN_IP="fe80::c463:8cff:feb9:6a4e%vmbr0"
 ----
 
 WARNING: The nodes in a cluster need access to `pmgproxy` for communication,
-possibly on different sub-nets. It is **not recommended** to set `LISTEN_IP` on
+possibly across different subnets. It is **not recommended** to set `LISTEN_IP`
-clustered systems.
+on clustered systems.
 
 To apply the change you need to either reboot your node or fully restart the
 `pmgproxy` service:
@@ -118,24 +118,24 @@ systemctl restart pmgproxy.service
 ----
 
 NOTE: Unlike `reload`, a `restart` of the pmgproxy service can interrupt some
-long-running worker processes, for example a running console.So, please use a
+long-running worker processes, for example, a running console. Therefore, you
-maintenance window to bring this change in effect.
+should set a maintenance window to bring this change into effect.
 
 
 SSL Cipher Suite
 ----------------
 
-You can define the cipher list in `/etc/default/pmgproxy`, for example
+You can define the cipher list in `/etc/default/pmgproxy`, for example:
 
  CIPHERS="ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256"
 
-Above is the default. See the `ciphers(1)` man page from the `openssl`
+The above is the default. See the `ciphers(1)` man page from the `openssl`
 package for a list of all available options.
 
-The first of these ciphers, available to both the client and the `pmgproxy`,
+The first of these ciphers that is available to both the client and `pmgproxy`
 will be used.
 
-Additionally you can allow the client to choose the cipher from the list above
+Additionally, you can allow the client to choose the cipher from the list above,
 by disabling the HONOR_CIPHER_ORDER option in `/etc/default/pmgproxy`:
 
  HONOR_CIPHER_ORDER=0
@@ -146,7 +146,7 @@ Diffie-Hellman Parameters
 
 You can define the used Diffie-Hellman parameters in
 `/etc/default/pmgproxy` by setting `DHPARAMS` to the path of a file
-containing DH parameters in PEM format, for example
+containing DH parameters in PEM format, for example:
 
  DHPARAMS="/path/to/dhparams.pem"
 
@@ -160,7 +160,8 @@ COMPRESSION
 -----------
 
 By default `pmgproxy` uses gzip HTTP-level compression for compressible
-content if the client supports it. This can be disabled in `/etc/default/pmgproxy`
+content, if the client supports it. This can be disabled in
+`/etc/default/pmgproxy`
 
  COMPRESSION=0
 

pmgtunnel.adoc

@@ -23,10 +23,10 @@ pmgtunnel - Cluster Tunnel Daemon
 =================================
 endif::manvolnum[]
 
-This daemon creates a ssh tunnel to the postgres database in other
+This daemon creates an ssh tunnel to the Postgres databases on other
 cluster nodes (port 5432). The tunnel is used to synchronize the
-database using an application specific asynchronous replication
+database, using an application-specific, asynchronous replication
-algorythm.
+algorithm.
 
 ifdef::manvolnum[]
 include::pmg-copyright.adoc[]