Tencentcloud dns

DNSPod (Tencent Cloud DNS)

Manage DNS records via the DNSPod API.

Setup: See tencentcloud authentication. DNSPod uses the same Tencent Cloud SecretId / SecretKey as the rest of the platform — there's no separate DP_Id / DP_Key for the v3 API. The SDK client below auto-reads TENCENTCLOUD_SECRET_ID / TENCENTCLOUD_SECRET_KEY from env.

The legacy v2 DNSPod API used a different key format; this skill targets the v3 SDK exclusively.

CLI (preferred)

The skill ships scripts/dns.py — wraps every common DNSPod v3 operation.

# $SKILL_DIR can point at another skill loaded this turn — anchor on our own
# script (re-run this at the top of every fresh-shell Bash block).
DNS="$SKILL_DIR/scripts/dns.py"; [ -f "$DNS" ] || DNS=$(find /tmp -maxdepth 8 -path '*/skills/*/scripts/dns.py' 2>/dev/null | head -1)
[ -f "$DNS" ] || { echo "tencentcloud-dns script not found (SKILL_DIR=$SKILL_DIR)" >&2; exit 1; }

python3 $DNS domains                                       # list domains
python3 $DNS list example.com                              # records on one domain
python3 $DNS list example.com --type CNAME                 # filter by type
python3 $DNS search example.com --keyword api              # client-side keyword search
python3 $DNS create example.com --sub www --type A --value 1.2.3.4
python3 $DNS create example.com --sub @ --type MX --value 'mail.example.com.' --mx 10
python3 $DNS create example.com --sub _acme-challenge --type TXT --value '"<token>"'
python3 $DNS update example.com <record-id> --sub www --type A --value 5.6.7.8
python3 $DNS delete example.com <record-id> --yes          # destructive, requires --yes

The delete subcommand requires --yes — without it, it prints a dry-run line so you can confirm the right record-id first.

When to Use

• Add a new subdomain (A / AAAA / CNAME)
• Update an existing record (change IP, change CNAME target)
• Add email-related records (MX, SPF / DKIM / DMARC TXT)
• Add domain-verification TXT records (Google / Search Console / SSL ACME challenges)
• List or search records on a domain
• Delete obsolete records

Dependencies

pip install tencentcloud-sdk-python

Quick start

import os
from tencentcloud.common import credential
from tencentcloud.dnspod.v20210323 import dnspod_client, models

cred = credential.EnvironmentVariableCredential().get_credential()
# DNSPod is global — region is ignored, but the SDK still requires one.
client = dnspod_client.DnspodClient(cred, "")

Workflows

List domains in the account

req = models.DescribeDomainListRequest()
req.Limit = 100
resp = client.DescribeDomainList(req)
for d in resp.DomainList:
    print(d.DomainId, d.Name, d.Status, d.RecordCount)

List records for a domain

req = models.DescribeRecordListRequest()
req.Domain = "example.com"
req.Limit = 100                  # max 3000
# Optional: req.RecordType = "A"
# Optional: req.Subdomain = "api"
resp = client.DescribeRecordList(req)
for r in resp.RecordList:
    print(r.RecordId, r.Name, r.Type, r.Value, "TTL=", r.TTL, "Line=", r.Line)

Search by keyword (filter client-side)

req = models.DescribeRecordListRequest()
req.Domain = "example.com"
req.Limit = 3000
resp = client.DescribeRecordList(req)
matches = [r for r in resp.RecordList if "api" in r.Name or "api" in r.Value]
for r in matches:
    print(r.RecordId, r.Name, r.Type, r.Value)

Create records

def create_record(domain, sub_domain, record_type, value, ttl=600, mx=None):
    req = models.CreateRecordRequest()
    req.Domain = domain
    req.SubDomain = sub_domain   # use "@" for the apex
    req.RecordType = record_type
    req.RecordLine = "默认"      # "Default" line — works in all environments
    req.Value = value
    req.TTL = ttl
    if mx is not None:
        req.MX = mx
    resp = client.CreateRecord(req)
    return resp.RecordId

# A record
rid = create_record("example.com", "www", "A", "1.2.3.4")
# CNAME (note: Value MUST end with a dot for absolute target)
rid = create_record("example.com", "api2", "CNAME", "api.example.com.")
# MX (priority via mx=)
rid = create_record("example.com", "@", "MX", "mail.example.com.", mx=10)
# TXT (SPF)
rid = create_record("example.com", "@", "TXT", '"v=spf1 include:_spf.google.com ~all"')
# ACME challenge for cert issuance
rid = create_record("example.com", "_acme-challenge", "TXT", '"<validation-token>"')

Update an existing record

req = models.ModifyRecordRequest()
req.Domain = "example.com"
req.RecordId = 123456789
req.SubDomain = "www"
req.RecordType = "A"
req.RecordLine = "默认"
req.Value = "5.6.7.8"
req.TTL = 600
client.ModifyRecord(req)

Delete a record

# Confirm with the user before running.
req = models.DeleteRecordRequest()
req.Domain = "example.com"
req.RecordId = 123456789
client.DeleteRecord(req)

Record types

Type	Use For	Example Value
A	IPv4 address	1.2.3.4
AAAA	IPv6 address	2001:db8::1
CNAME	Alias to another hostname	target.example.com.
MX	Mail server	mail.example.com. (set MX= priority)
TXT	SPF / DKIM / DMARC / domain verification / ACME	"v=spf1 ..." (quoted)
NS	Delegate subzone	ns1.example.com.
SRV	Service discovery	0 5 443 api.example.com.
CAA	Cert Authority Authorization	0 issue "letsencrypt.org"

CNAME apex restriction

DNSPod (like every other DNS service) does not support CNAME on the apex @ (the bare domain) when other record types exist. Use A for the apex; CNAME for subdomains. If the upstream is itself a hostname (e.g. an EdgeOne / CDN endpoint), use the Alias record type via the EdgeOne console — DNSPod itself doesn't have an ALIAS type.

RecordLine ("线路")

DNSPod can serve different values to different ISPs / regions via RecordLine. For 99% of cases pick "默认" (Default) — it serves to every resolver. Other common lines: "电信", "联通", "移动", "境外", "国内". Use the console to set up split-horizon DNS; the API just lets you write the records.

Verifying changes

dig @119.29.29.29 www.example.com +short    # 119.29.29.29 = DNSPod's recursor
dig www.example.com +trace                  # follow the delegation chain

DNSPod propagation is usually under a minute on its own resolver and bounded by the TTL elsewhere. Use TTL=60 while iterating; raise to 600 once stable.

Important reminders

• CNAME values need a trailing dot to be absolute (api.example.com.). Without it, DNSPod won't reject — but resolvers will hate you.
• Confirm deletes with the user — there's no undo. The RecordId is required, so search first to be sure.
• Don't rotate NS records lightly — losing nameserver delegation takes the entire domain offline until you fix it.
• TXT values for SPF/DMARC need to stay under 255 chars per chunk. For longer policies, split into multiple quoted strings within one TXT value.
• DNSPod has separate quota for free / paid plans on RecordCount and RecordsPerMinute. Check the console if LimitExceeded errors appear.

Console links

• DNSPod console: https://console.cloud.tencent.com/cns
• API reference: https://www.tencentcloud.com/document/product/1097/40694