initscripts/sysconfig, branch 9.49.40

ifup-post: always update nameserver & search entries in /etc/resolv.conf

2017-11-02T10:54:44+00:00

  This is complete rework of how we generate the /etc/resolv.conf.

  Fixes:
   * always update 'nameserver' & 'search' entries when DNS* & DOMAIN
     options (respectively) were updated in ifcfg-* files
   * always update the order of 'nameserver' entries when the order of
     DNS* options was updated

  Enhancements:
   * added support for DNS3 option (equals to MAXNS value in GLIBC)
   * added logic to process duplicate DNS* options
   * added logic to process randomly omitted DNS* options (e.g. omitting
     DNS1 while specifying DNS2 and/or DNS3 will still work now)

  This work was based on these two RHEL-7.5 BZs:
  https://bugzilla.redhat.com/show_bug.cgi?id=1364895
  https://bugzilla.redhat.com/show_bug.cgi?id=1357658

ifup-eth: wait for STP to complete setup on bridge if $DELAY is not set

2017-10-31T11:36:19+00:00

  Otherwise obtaining IP from DHCP might fail. Based on patch from:
   * Rich Alloway  | CentOS BZ #0011138

init.d/functions: convert2sec() function added

2017-10-31T11:36:19+00:00

  And network-scripts/network-functions was patched to use convert2sec().

  This function can be used to convert the value of its first parameter
  to a number of seconds - based on the time unit (specified as the
  second parameter).

  This is mostly useful for converting values for use with the sleep(1).

Replace usleep(1) calls with sleep(1) calls

2017-10-31T11:36:19+00:00

  The time units had to be manually converted from microseconds to
  seconds. Hopefully this was done right.

network-scripts: forward DBus calls to /dev/null

2017-10-31T11:27:31+00:00

network-scripts: firewall-cmd replaced with DBus calls

2017-10-31T11:27:31+00:00

  To speed things up. Based on patch & comments from:
  https://bugzilla.redhat.com/show_bug.cgi?id=1497759

ARPUPDATE introduced

2017-10-16T17:06:33+00:00

  The ARPUPDATE option has been introduced. It defaults to 'yes'.

  By setting the ARPUPDATE to 'no', administrator can disable
  updating neighbouring computers with ARP information about current
  NIC. This is especially needed when using LVS Load Balancing with
  Direct routing enabled.

DHCP_FQDN and DHCP_SEND_HOSTNAME introduced

2017-05-03T09:53:09+00:00

  The way DHCP_HOSTNAME is being sent to DHCP server has been completely
  reworked...

  DHCP_FQDN now allows user to specify fully qualified domain name to be
  sent to DHCP server instead of just using simple hostname. This option
  takes precedence before DHCP_HOSTNAME variable.

  DHCP_SEND_HOSTNAME can be used to tell initscripts to not send either
  DHCP_HOSTNAME or DHCP_FQDN to DHCP server.

  Both of these options should behave same as they do in NetworkManager.

re-add missing $HOSTNAME initialization

2017-05-03T09:53:09+00:00

ifup: add support for VLAN_EGRESS_PRIORITY_MAP

2017-05-03T09:53:09+00:00