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这两天好多朋友反映搬瓦工在换机房的时候提示Migration backend is currently not available for this VPS，首先解释一下这个是什么意思，字面意思就是“迁移后端当前对此VPS不可用”，其实就是你的IP已经被封了，所以是无法更换机房的，目前搬瓦工自助免费更换IP的功能已经停用了，如果你无法迁移的话，那么试一下以下的办法。
首先出现这种情况你的IP在国内是ping不通的，可以把自己的网站加上Cloudflare，这样你的网站应该就可以正常访问，但是如果你的端口都被封了，那就比较麻烦了。可以试试以下方法。

1、关机几天看看情况。
2、发工单申请免费更换IP，估计戏不大，瓦工也不傻。
3、可以付费更换。
4、退款找替代方案。

替代方案

一、可以购买virmach，买一个月用一下，毕竟便宜，最低0.87美元每月。
2019年Virmach低价VPS购买及优惠码使用教程全解
二、使用vultr，按小时计划，IP随时换，最低3.5美元每月，充5刀送50刀。
2019年Vultr最新优惠：充值5没元送50美元【有效期30天】
三、hostens首月1折优惠，0.4刀就可以购买一个月，才不到3块钱。

#便宜#$0.4/首月 2G内存 20G硬盘 2T流量@100Mbps KVM 立陶宛 hostens 附测评数据

以上就是博主的推荐了。可以暂时用一下。

[available]历史优惠活动内容

搬瓦工换机房提示 Migration backend is currently not av

Briefly unavailable for scheduled maintenance.

搬瓦工提示”Migration backend is currently not avail

搬瓦工换机房提示 Migration backend is currently not av

Briefly unavailable for scheduled maintenance.

搬瓦工提示”Migration backend is currently not avail

搬瓦工换机房提示 Migration backend is currently not av

Briefly unavailable for scheduled maintenance.

搬瓦工提示”Migration backend is currently not avail

搬瓦工换机房提示 Migration backend is currently not av

Briefly unavailable for scheduled maintenance.

搬瓦工提示”Migration backend is currently not avail

搬瓦工换机房提示 Migration backend is currently not av

Briefly unavailable for scheduled maintenance.

搬瓦工提示”Migration backend is currently not avail

搬瓦工换机房提示 Migration backend is currently not av

Briefly unavailable for scheduled maintenance.

搬瓦工提示”Migration backend is currently not avail

搬瓦工换机房提示 Migration backend is currently not av

Briefly unavailable for scheduled maintenance.

搬瓦工提示”Migration backend is currently not avail

搬瓦工换机房提示Migration backend is currently not ava

搬瓦工提示”Migration backend is currently not avail

搬瓦工→提示”Migration backend is currently not avai

解决\\”No package npm available\\”问题记录

解决WDCP FTP提示\\”No supported authentication met

解决CentOS出现\\”No package redis available\\”提示问题

解决腾讯云服务器更新源出现\\”There is no public key availab

解决网站和宝塔面板出现\\”Service Unavailable\\”503问题

解决\\”Migration backend is currently not availa

解决Debian更新源出错以及\\”There is no public key avail

解决Debian更新源出错以及\”There is no public key availa

搬瓦工换机房提示Migration backend is currently not ava

搬瓦工提示”Migration backend is currently not avail

搬瓦工换机房提示Migration backend is currently not ava

搬瓦工提示”Migration backend is currently not avail

搬瓦工换机房提示Migration backend is currently not ava

搬瓦工提示”Migration backend is currently not avail

搬瓦工换机房提示Migration backend is currently not ava

搬瓦工提示”Migration backend is currently not avail

debian/ubuntu出现W: There is no public key avail

解决问题→E: Could not get lock /var/lib/dpkg/lock