
```
我的Peer信息:
ASN: 4242421117
IPv6 Link-Local: fe80::1117
Port: [你的ASN后5位]
AnyCast DN42 IPv4: 172.21.86.1
```
```
美国洛杉矶(US-LA): 
Endpoint: us01.dn42.yuyuko.com (ipv4 only)
PublicKey: PW/+rv0B8e4tUJ9j1TWscx1sl36WwhPh9adEqoM7Jic=
DN42 IPv4: 172.21.86.59
DN42 IPv6: fd55:bf6f:88de::40:162c:e5c0
```
```
日本东京(JP-TYO): 
Endpoint: jp01.dn42.yuyuko.com (ipv4/v6)(感谢Nisbett的v6方法)
PublicKey: vZXB25Od9elWU4RKWp42MWNJrNtxJFgdmBkyYH/8Sj8=
DN42 IPv4: 172.21.86.57
DN42 IPv6: fd55:bf6f:88de::42:a06:ad15
```
```
中国香港(CN-HK): 
Endpoint: hk01.dn42.yuyuko.com (**ipv6 only**)
PublicKey: gqwdC9p6jdSy80oRxdatr9QdSrNMLCvRMadaCeOBqDY=
DN42 IPv4: 172.21.86.61
DN42 IPv6: fd55:bf6f:88de::3b:ceed:5a3b
```
:::note{title=" "}
目前仅支持WireGuard方式连接，默认 MP-BGP + Extend Next Hop 方式连接

需要peer请留言你的info，看到后会手动添加

所有CN节点均不保证可用性和稳定性，容易受到不可抗力的影响
:::

DN42 Peering

```
# A script that will be executed after a lease is assigned or de-assigned. Internal "global" variables that can be used in the script:
# leaseBound - set to "1" if bound, otherwise set to "0"
# leaseServerName - DHCP server name
# leaseActMAC - active mac address
# leaseActIP - active IP address
# lease-agent-circuit-id - lease agent circuit ID
# lease-agent-remote-id - lease agent remote ID
# lease-hostname - client hostname
# lease-options - an array of received options

:local domain;
:local hostname;
:local dnsRecord;
:local leaseRecord;

:set domain "lan";
:set leaseRecord [/ip dhcp-server lease print as-value where server="$leaseServerName" address="$leaseActIP" dynamic=no];

:if (0 = $leaseBound || 0 = [:len $leaseRecord]) do={
    :return 0;
}

:set hostname ([:pick $leaseRecord 0]->"comment");
:if (0 = [:len $hostname]) do={
    :set hostname $"lease-hostname";
}
:set hostname "$hostname.$domain";

/ip dns static remove [/ip dns static find address="$leaseActIP" name!="$hostname"]
/ip dns static remove [/ip dns static find address!="$leaseActIP" name="$hostname"]

:set dnsRecord [/ip dns static find address="$leaseActIP" name="$hostname"];
:if (0 = [:len $dnsRecord]) do={
    /ip dns static add name="$hostname" address="$leaseActIP";
    :return 0;
}
```

mikrotik routeros DHCP自动添加DNS本地解析记录

103.195.103.66/9993 778CDE7190:0:3F6681A99E5AD1895E9FBA33E6212D4454E168BCEC7112101BF000956ED8E92E42892CB6F2EC410881A84AB19DA50E1287BA3D926C3A1F755CCCF299A1207055

84.17.53.155/9993   CAFE04EBA9:0:6C6A9D1DEA55C1616BFE2A2B8F0FF9A8CACAF70374FB1F39E3BEF81CBFEBEF17B7228268A0A2A29D3488C752565C6C965CBD6506EC24397CC8A5D9D15285A87F

185.152.67.145/9993 CAFE80ED74:0:1E86A3FF8617BEF537B99BA714408BF0CE0E143F8ACF6EC93E94D4597AAF16097D4F1CEC69B44FDA99665CA99C57F4A16641B9E39B2E6D3180DC8F1AE8DE89F8

79.127.159.187/9993 CAFEFD6717:0:4C74EDE01850E7E645FB779D700C45B9AF91A048CC858AD0C4F25174BF29B460E5CC3E98CD84EE30FEA57C14F1495ADD0CC0E5B19D78AFCD14170C5756180800

zerotier公共根服务器IP和公钥

键轴频繁失灵：热插拔技术很烂，容易氧化接触不良，将轴体整个拔起再插回去

板层断线：同列的轴把信号飞线过来

米家矮轴机械键盘mwwmkp01踩坑


```
#!/bin/bash
  
#保存备份个数，备份31天数据
day=31
#备份保存路径
backup_dir=/backup
#日期
dd=`date +%Y-%m-%d-%H-%M-%S`
#用户名
username=sa
#密码
password=123456
#备份数据库
db_arr="db1 db2 db3"

#如果文件夹不存在则创建
if [ ! -d $backup_dir ];
then
    mkdir -p $backup_dir;
fi

for dbname in ${db_arr}
do
    db_dir=${backup_dir}/${dbname}
    #对每个数据库建立单独的文件夹
    if [ ! -d ${db_dir} ];
    then
        mkdir -p ${db_dir};
    fi
    #备份
    bak_file=${db_dir}/${dbname}-${dd}.bak
    /opt/mssql-tools/bin/sqlcmd -S localhost -U "${username}" -P "${password}" -b -Q "BACKUP DATABASE [${dbname}] TO DISK = N'${bak_file}' WITH NOFORMAT, NOINIT, NAME = '${dbname}-full', SKIP, NOUNLOAD, STATS = 10"
    cat ${bak_file} | gzip > ${bak_file}.gz
    rm ${bak_file}
    echo "create ${bak_file}.gz" >> ${backup_dir}/log.txt
    #删除过期备份
    delfile=`ls -l -crt  ${db_dir}/*.bak.gz | awk '{ print $9 }' | head -1`
    count=`ls -l -crt  ${db_dir}/*.bak.gz | awk '{ print $9 }' | wc -l`
    if [[ ${count} -gt ${day} ]]
    then
      #删除最早生成的备份，只保留day数量的备份
      rm ${delfile}
      #写删除文件日志
      echo "delete ${delfile}" >> ${backup_dir}/log.txt
    fi
done


```