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extra check on dns

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This commit is contained in:
afeiszli 2022-02-07 14:09:48 -05:00
parent ea7cb6f39e
commit fb8def3315
1 changed files with 11 additions and 0 deletions
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11
netclient/local/dns.go
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@ -20,6 +20,9 @@ const DNS_UNREACHABLE_ERROR = "nameserver unreachable"
// SetDNSWithRetry - Attempt setting dns, if it fails return true (to reset dns) // SetDNSWithRetry - Attempt setting dns, if it fails return true (to reset dns)
func SetDNSWithRetry(node models.Node, address string) bool { func SetDNSWithRetry(node models.Node, address string) bool {
var reachable bool var reachable bool
if !hasPrereqs() {
return true
}
for counter := 0; !reachable && counter < 5; counter++ { for counter := 0; !reachable && counter < 5; counter++ {
reachable = IsDNSReachable(address) reachable = IsDNSReachable(address)
time.Sleep(time.Second << 1) time.Sleep(time.Second << 1)
@ -62,6 +65,14 @@ func SetDNS(nameserver string) error {
return err return err
} }
func hasPrereqs() bool {
if !ncutils.IsLinux() {
return false
}
_, err := exec.LookPath("resolvectl")
return err == nil
}
// UpdateDNS - updates local DNS of client // UpdateDNS - updates local DNS of client
func UpdateDNS(ifacename string, network string, nameserver string) error { func UpdateDNS(ifacename string, network string, nameserver string) error {
if !ncutils.IsLinux() { if !ncutils.IsLinux() {