我收到太多服务器身份验证错误

Question

这是我做tail -1000消息的时候

Aug 10 03:02:51 host pure-ftpd: (?@222.186.58.97) [INFO] New connection from 222.186.58.97
Aug 10 03:02:51 host pure-ftpd: (?@111.175.124.84) [INFO] New connection from 111.175.124.84
Aug 10 03:02:53 host pure-ftpd: (?@220.161.126.80) [WARNING] Authentication failed for user [admin]
Aug 10 03:02:53 host pure-ftpd: (?@111.175.124.84) [WARNING] Authentication failed for user [nekkidtopless]
Aug 10 03:02:53 host pure-ftpd: (?@220.161.126.80) [INFO] Logout.
Aug 10 03:02:53 host pure-ftpd: (?@199.193.71.80) [INFO] New connection from 199.193.71.80
Aug 10 03:02:53 host pure-ftpd: (?@111.175.124.84) [INFO] Logout.
Aug 10 03:02:54 host pure-ftpd: (?@111.175.124.84) [INFO] New connection from 111.175.124.84
Aug 10 03:02:54 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [administrator]
Aug 10 03:02:54 host pure-ftpd: (?@118.186.140.18) [WARNING] Authentication failed for user [chickswimsuitcom]
Aug 10 03:02:55 host pure-ftpd: (?@112.86.10.158) [WARNING] Authentication failed for user [sunadultcom]
Aug 10 03:02:55 host pure-ftpd: (?@110.85.68.75) [WARNING] Authentication failed for user [admin]
Aug 10 03:02:55 host pure-ftpd: (?@112.86.10.158) [INFO] Logout.
Aug 10 03:02:55 host pure-ftpd: (?@118.186.140.18) [INFO] Logout.
Aug 10 03:02:55 host pure-ftpd: (?@112.86.10.158) [INFO] New connection from 112.86.10.158
Aug 10 03:02:56 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [d7c]
Aug 10 03:02:56 host pure-ftpd: (?@220.161.126.80) [INFO] New connection from 220.161.126.80
Aug 10 03:02:56 host pure-ftpd: (?@111.175.124.84) [WARNING] Authentication failed for user [tripstockscom]
Aug 10 03:02:57 host pure-ftpd: (?@110.85.68.75) [INFO] Logout.
Aug 10 03:02:57 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:02:57 host pure-ftpd: (?@222.186.58.97) [WARNING] Authentication failed for user [marriagefxcom]
Aug 10 03:02:57 host pure-ftpd: (?@222.186.58.97) [INFO] Logout.
Aug 10 03:02:57 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [admin]
Aug 10 03:02:57 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:02:57 host pure-ftpd: (?@111.175.124.84) [INFO] Logout.
Aug 10 03:02:57 host pure-ftpd: (?@199.193.71.80) [WARNING] Authentication failed for user [.timemarriage.com]
Aug 10 03:02:57 host pure-ftpd: (?@199.193.71.80) [INFO] Logout.
Aug 10 03:02:58 host pure-ftpd: (?@110.85.68.75) [INFO] New connection from 110.85.68.75
Aug 10 03:02:58 host pure-ftpd: (?@199.193.71.80) [INFO] New connection from 199.193.71.80
Aug 10 03:02:58 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:02:58 host pure-ftpd: (?@118.186.140.18) [INFO] New connection from 118.186.140.18
Aug 10 03:02:59 host pure-ftpd: (?@222.186.58.97) [INFO] New connection from 222.186.58.97
Aug 10 03:02:59 host pure-ftpd: (?@111.175.124.84) [INFO] New connection from 111.175.124.84
Aug 10 03:03:01 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:03:02 host pure-ftpd: (?@112.86.10.158) [WARNING] Authentication failed for user [.sunadult.com]
Aug 10 03:03:02 host pure-ftpd: (?@112.86.10.158) [INFO] Logout.
Aug 10 03:03:02 host pure-ftpd: (?@112.86.10.158) [INFO] New connection from 112.86.10.158
Aug 10 03:03:02 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:03:03 host pure-ftpd: (?@110.85.68.75) [WARNING] Authentication failed for user [datingblondeadmin]
Aug 10 03:03:03 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:03:03 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [root]
Aug 10 03:03:03 host pure-ftpd: (?@199.193.71.80) [WARNING] Authentication failed for user [administrator@timemarriage.com]
Aug 10 03:03:03 host pure-ftpd: (?@199.193.71.80) [INFO] Logout.
Aug 10 03:03:03 host pure-ftpd: (?@199.193.71.80) [INFO] New connection from 199.193.71.80
Aug 10 03:03:03 host pure-ftpd: (?@110.85.68.75) [INFO] Logout.
Aug 10 03:03:03 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:03:03 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [admin]
Aug 10 03:03:03 host pure-ftpd: (?@222.186.58.97) [WARNING] Authentication failed for user [marriagefx.com]
Aug 10 03:03:03 host pure-ftpd: (?@118.186.140.18) [WARNING] Authentication failed for user [chickswimsuit]
Aug 10 03:03:03 host pure-ftpd: (?@110.85.68.75) [INFO] New connection from 110.85.68.75
Aug 10 03:03:04 host pure-ftpd: (?@222.186.58.97) [INFO] Logout.
Aug 10 03:03:04 host pure-ftpd: (?@118.186.140.18) [INFO] Logout.
Aug 10 03:03:04 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:03:04 host pure-ftpd: (?@222.186.58.97) [INFO] New connection from 222.186.58.97
Aug 10 03:03:04 host pure-ftpd: (?@118.186.140.18) [INFO] New connection from 118.186.140.18
Aug 10 03:03:04 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:03:05 host pure-ftpd: (?@111.175.124.84) [WARNING] Authentication failed for user [tripstocks]
Aug 10 03:03:05 host pure-ftpd: (?@111.175.124.84) [INFO] Logout.
Aug 10 03:03:05 host pure-ftpd: (?@111.175.124.84) [INFO] New connection from 111.175.124.84
Aug 10 03:03:06 host pure-ftpd: (?@220.161.126.80) [WARNING] Authentication failed for user [mypicturessiteadmin]
Aug 10 03:03:06 host pure-ftpd: (?@220.161.126.80) [INFO] Logout.
Aug 10 03:03:06 host pure-ftpd: (?@111.175.124.84) [WARNING] Authentication failed for user [nekkidtoplesscom]
Aug 10 03:03:06 host pure-ftpd: (?@220.161.126.80) [INFO] New connection from 220.161.126.80
Aug 10 03:03:06 host pure-ftpd: (?@111.175.124.84) [INFO] Logout.
Aug 10 03:03:06 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [computergamesonadmin]
Aug 10 03:03:07 host pure-ftpd: (?@220.161.126.80) [INFO] Logout.
Aug 10 03:03:07 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:03:07 host pure-ftpd: (?@220.161.126.80) [INFO] New connection from 220.161.126.80
Aug 10 03:03:08 host pure-ftpd: (?@199.193.71.80) [WARNING] Authentication failed for user [administrators@timemarriage.com]
Aug 10 03:03:08 host pure-ftpd: (?@199.193.71.80) [INFO] Logout.
Aug 10 03:03:08 host pure-ftpd: (?@199.193.71.80) [INFO] New connection from 199.193.71.80
Aug 10 03:03:08 host pure-ftpd: (?@222.186.58.97) [WARNING] Authentication failed for user [marriagefx]
Aug 10 03:03:08 host pure-ftpd: (?@118.186.140.18) [WARNING] Authentication failed for user [esults]
Aug 10 03:03:08 host pure-ftpd: (?@111.175.124.84) [INFO] New connection from 111.175.124.84
Aug 10 03:03:08 host pure-ftpd: (?@222.186.58.97) [INFO] Logout.
Aug 10 03:03:08 host pure-ftpd: (?@112.86.10.158) [WARNING] Authentication failed for user [administrator@sunadult.com]
Aug 10 03:03:08 host pure-ftpd: (?@118.186.140.18) [INFO] Logout.
Aug 10 03:03:08 host pure-ftpd: (?@222.186.58.97) [INFO] New connection from 222.186.58.97
Aug 10 03:03:09 host pure-ftpd: (?@112.86.10.158) [INFO] Logout.
Aug 10 03:03:09 host pure-ftpd: (?@118.186.140.18) [INFO] New connection from 118.186.140.18
Aug 10 03:03:09 host pure-ftpd: (?@112.86.10.158) [INFO] New connection from 112.86.10.158
Aug 10 03:03:10 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [smartvehiclefinancecom]
Aug 10 03:03:10 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [titiesporniestnet]
Aug 10 03:03:10 host pure-ftpd: (?@110.85.68.75) [WARNING] Authentication failed for user [administrator]
Aug 10 03:03:11 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:03:11 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:03:11 host pure-ftpd: (?@110.85.68.75) [INFO] Logout.
Aug 10 03:03:11 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:03:11 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:03:11 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:03:11 host pure-ftpd: (?@110.85.68.75) [INFO] New connection from 110.85.68.75
Aug 10 03:03:12 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [brunettedvdadmin]
Aug 10 03:03:12 host pure-ftpd: (?@111.175.124.84) [WARNING] Authentication failed for user [tripstockscom]
Aug 10 03:03:12 host pure-ftpd: (?@222.186.58.97) [WARNING] Authentication failed for user [marriagefxcom]
Aug 10 03:03:12 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:03:12 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:03:12 host pure-ftpd: (?@111.175.124.84) [INFO] Logout.
Aug 10 03:03:12 host pure-ftpd: (?@222.186.58.97) [INFO] Logout.
Aug 10 03:03:13 host pure-ftpd: (?@199.193.71.80) [WARNING] Authentication failed for user [timemarriage]
Aug 10 03:03:13 host pure-ftpd: (?@199.193.71.80) [INFO] Logout.
Aug 10 03:03:13 host pure-ftpd: (?@199.193.71.80) [INFO] New connection from 199.193.71.80
Aug 10 03:03:13 host pure-ftpd: (?@111.175.124.84) [INFO] New connection from 111.175.124.84
Aug 10 03:03:13 host pure-ftpd: (?@222.186.58.97) [INFO] New connection from 222.186.58.97
Aug 10 03:03:13 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:03:13 host pure-ftpd: (?@220.161.126.80) [WARNING] Authentication failed for user [administrator]
Aug 10 03:03:14 host pure-ftpd: (?@220.161.126.80) [INFO] Logout.
Aug 10 03:03:14 host pure-ftpd: (?@220.161.126.80) [WARNING] Authentication failed for user [stockmarketof]
Aug 10 03:03:14 host pure-ftpd: (?@220.161.126.80) [INFO] New connection from 220.161.126.80
Aug 10 03:03:14 host pure-ftpd: (?@118.186.140.18) [WARNING] Authentication failed for user [chickswimsuitcom]
Aug 10 03:03:14 host pure-ftpd: (?@220.161.126.80) [INFO] Logout.
Aug 10 03:03:14 host pure-ftpd: (?@118.186.140.18) [INFO] Logout.
Aug 10 03:03:14 host pure-ftpd: (?@220.161.126.80) [INFO] New connection from 220.161.126.80
Aug 10 03:03:15 host pure-ftpd: (?@118.186.140.18) [INFO] New connection from 118.186.140.18
Aug 10 03:03:15 host pure-ftpd: (?@111.175.124.84) [WARNING] Authentication failed for user [nekkidtopless]
Aug 10 03:03:15 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [administrator]
Aug 10 03:03:15 host pure-ftpd: (?@111.175.124.84) [INFO] Logout.
Aug 10 03:03:16 host pure-ftpd: (?@111.175.124.84) [INFO] New connection from 111.175.124.84
Aug 10 03:03:16 host pure-ftpd: (?@112.86.10.158) [WARNING] Authentication failed for user [administrators@sunadult.com]
Aug 10 03:03:16 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:03:16 host pure-ftpd: (?@112.86.10.158) [INFO] Logout.
Aug 10 03:03:16 host pure-ftpd: (?@112.86.10.158) [INFO] New connection from 112.86.10.158
Aug 10 03:03:16 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:03:16 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [admin]
Aug 10 03:03:17 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [administrator]
Aug 10 03:03:17 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [admin]
Aug 10 03:03:17 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:03:17 host pure-ftpd: (?@111.175.124.84) [WARNING] Authentication failed for user [tripstocks]
Aug 10 03:03:17 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:03:17 host pure-ftpd: (?@199.193.71.80) [WARNING] Authentication failed for user [timemarriagecom]
Aug 10 03:03:17 host pure-ftpd: (?@199.193.71.80) [INFO] Logout.
Aug 10 03:03:17 host pure-ftpd: (?@199.193.71.80) [INFO] New connection from 199.193.71.80
Aug 10 03:03:18 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:03:18 host pure-ftpd: (?@222.186.58.97) [WARNING] Authentication failed for user [marriagefx.com]
Aug 10 03:03:18 host pure-ftpd: (?@111.175.124.84) [INFO] Logout.
Aug 10 03:03:18 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:03:18 host pure-ftpd: (?@222.186.58.97) [INFO] Logout.
Aug 10 03:03:18 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:03:18 host pure-ftpd: (?@222.186.58.97) [INFO] New connection from 222.186.58.97
Aug 10 03:03:18 host pure-ftpd: (?@110.85.68.75) [WARNING] Authentication failed for user [root]
Aug 10 03:03:19 host pure-ftpd: (?@110.85.68.75) [INFO] Logout.
Aug 10 03:03:19 host pure-ftpd: (?@110.85.68.75) [INFO] New connection from 110.85.68.75
Aug 10 03:03:20 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:03:20 host pure-ftpd: (?@220.161.126.80) [WARNING] Authentication failed for user [root]
Aug 10 03:03:20 host pure-ftpd: (?@220.161.126.80) [WARNING] Authentication failed for user [stockmarketofcom]
Aug 10 03:03:20 host pure-ftpd: (?@220.161.126.80) [INFO] Logout.
Aug 10 03:03:20 host pure-ftpd: (?@220.161.126.80) [INFO] Logout.
Aug 10 03:03:20 host pure-ftpd: (?@112.86.10.158) [WARNING] Authentication failed for user [sunadult]
Aug 10 03:03:20 host pure-ftpd: (?@220.161.126.80) [INFO] New connection from 220.161.126.80
Aug 10 03:03:20 host pure-ftpd: (?@220.161.126.80) [INFO] New connection from 220.161.126.80
Aug 10 03:03:20 host pure-ftpd: (?@112.86.10.158) [INFO] Logout.
Aug 10 03:03:21 host pure-ftpd: (?@111.175.124.84) [WARNING] Authentication failed for user [nekkidtoplesscom]
Aug 10 03:03:21 host pure-ftpd: (?@118.186.140.18) [WARNING] Authentication failed for user [chickswimsuit]
Aug 10 03:03:21 host pure-ftpd: (?@111.175.124.84) [INFO] Logout.
Aug 10 03:03:21 host pure-ftpd: (?@118.186.140.18) [INFO] Logout.
Aug 10 03:03:21 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [root]
Aug 10 03:03:21 host pure-ftpd: (?@199.193.71.80) [WARNING] Authentication failed for user [admin@timemarriage.com]
Aug 10 03:03:21 host pure-ftpd: (?@199.193.71.80) [INFO] Logout.
Aug 10 03:03:21 host pure-ftpd: (?@111.175.124.84) [INFO] New connection from 111.175.124.84
Aug 10 03:03:21 host pure-ftpd: (?@199.193.71.80) [INFO] New connection from 199.193.71.80
Aug 10 03:03:22 host pure-ftpd: (?@118.186.140.18) [INFO] New connection from 118.186.140.18
Aug 10 03:03:22 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:03:22 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [smartvehiclefinanceadmin]
Aug 10 03:03:22 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:03:23 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [root]
Aug 10 03:03:23 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:03:23 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:03:24 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:03:24 host pure-ftpd: (?@222.186.58.97) [WARNING] Authentication failed for user [marriagefx]
Aug 10 03:03:24 host pure-ftpd: (?@222.186.58.97) [INFO] Logout.
Aug 10 03:03:24 host pure-ftpd: (?@220.161.126.80) [WARNING] Authentication failed for user [admin]
Aug 10 03:03:24 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [titiesporniestadmin]
Aug 10 03:03:24 host pure-ftpd: (?@220.161.126.80) [WARNING] Authentication failed for user [mypicturessite]
Aug 10 03:03:24 host pure-ftpd: (?@222.186.58.97) [INFO] New connection from 222.186.58.97
Aug 10 03:03:24 host pure-ftpd: (?@220.161.126.80) [INFO] Logout.
Aug 10 03:03:25 host pure-ftpd: (?@220.161.126.80) [INFO] Logout.
Aug 10 03:03:25 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:03:25 host pure-ftpd: (?@220.161.126.80) [INFO] New connection from 220.161.126.80
Aug 10 03:03:25 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:03:25 host pure-ftpd: (?@110.85.68.75) [WARNING] Authentication failed for user [italian-pussy]
Aug 10 03:03:25 host pure-ftpd: (?@111.175.124.84) [WARNING] Authentication failed for user [nekkidtopless]
Aug 10 03:03:25 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:03:26 host pure-ftpd: (?@111.175.124.84) [INFO] Logout.
Aug 10 03:03:26 host pure-ftpd: (?@110.85.68.75) [INFO] Logout.
Aug 10 03:03:26 host pure-ftpd: (?@220.161.126.80) [INFO] New connection from 220.161.126.80
Aug 10 03:03:26 host pure-ftpd: (?@111.175.124.84) [INFO] New connection from 111.175.124.84
Aug 10 03:03:26 host pure-ftpd: (?@118.186.140.18) [WARNING] Authentication failed for user [esults]
Aug 10 03:03:26 host pure-ftpd: (?@110.85.68.75) [INFO] New connection from 110.85.68.75
Aug 10 03:03:27 host pure-ftpd: (?@118.186.140.18) [INFO] Logout.
Aug 10 03:03:27 host pure-ftpd: (?@118.186.140.18) [INFO] New connection from 118.186.140.18
Aug 10 03:03:28 host pure-ftpd: (?@199.193.71.80) [WARNING] Authentication failed for user [timemarriage@timemarriage.com]
Aug 10 03:03:28 host pure-ftpd: (?@199.193.71.80) [INFO] Logout.
Aug 10 03:03:28 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [nude-miss]
Aug 10 03:03:28 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [computergamesoncom]
Aug 10 03:03:29 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:03:29 host pure-ftpd: (?@222.186.58.97) [WARNING] Authentication failed for user [marriagefxcom]
Aug 10 03:03:29 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:03:29 host pure-ftpd: (?@222.186.58.97) [INFO] Logout.
Aug 10 03:03:29 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:03:29 host pure-ftpd: (?@222.186.58.97) [INFO] New connection from 222.186.58.97
Aug 10 03:03:29 host pure-ftpd: (?@220.161.126.80) [WARNING] Authentication failed for user [stockmarketofadmin]
Aug 10 03:03:30 host pure-ftpd: (?@220.161.126.80) [INFO] Logout.
Aug 10 03:03:30 host pure-ftpd: (?@112.86.10.158) [INFO] New connection from 112.86.10.158
Aug 10 03:03:31 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [administrator]
Aug 10 03:03:31 host pure-ftpd: (?@199.193.71.80) [INFO] New connection from 199.193.71.80
Aug 10 03:03:31 host pure-ftpd: (?@220.161.126.80) [WARNING] Authentication failed for user [m]
Aug 10 03:03:31 host pure-ftpd: (?@110.85.68.75) [WARNING] Authentication failed for user [datingblondecom]
Aug 10 03:03:31 host pure-ftpd: (?@27.153.248.48) [INFO] Logout.
Aug 10 03:03:31 host pure-ftpd: (?@220.161.126.80) [INFO] New connection from 220.161.126.80
Aug 10 03:03:31 host pure-ftpd: (?@220.161.126.80) [INFO] Logout.
Aug 10 03:03:32 host pure-ftpd: (?@110.85.68.75) [INFO] Logout.
Aug 10 03:03:32 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:03:32 host pure-ftpd: (?@220.161.126.80) [INFO] New connection from 220.161.126.80
Aug 10 03:03:32 host pure-ftpd: (?@111.175.124.84) [WARNING] Authentication failed for user [nekkidtoplesscom]
Aug 10 03:03:32 host pure-ftpd: (?@111.175.124.84) [INFO] Logout.
Aug 10 03:03:32 host pure-ftpd: (?@27.153.248.48) [INFO] New connection from 27.153.248.48
Aug 10 03:03:32 host pure-ftpd: (?@111.175.124.84) [INFO] New connection from 111.175.124.84
Aug 10 03:03:33 host pure-ftpd: (?@27.153.248.48) [WARNING] Authentication failed for user [administrator]
Aug 10 03:03:33 host pure-ftpd: (?@118.186.140.18) [WARNING] Authentication failed for user [chickswimsuitcom]
Aug 10 03:03:34 host pure-ftpd: (?@110.85.68.75) [INFO] New connection from 110.85.68.75
Aug 10 03:03:34 host pure-ftpd: (?@222.186.58.97) [WARNING] Authentication failed for user [marriagefx.com]
Aug 10 03:03:34 host pure-ftpd: (?@118.186.140.18) [INFO] Logout.
Aug 10 03:03:34 host pure-ftpd: (?@222.186.58.97) [INFO] Logout.
Aug 10 03:03:34 host pure-ftpd: (?@118.186.140.18) [INFO] New connection from 118.186.140.18
Aug 10 03:03:34 host pure-ftpd: (?@222.186.58.97) [INFO] New connection from 222.186.58.97
Aug 10 03:03:35 host pure-ftpd: (?@199.193.71.80) [WARNING] Authentication failed for user [timemarriage.com]
Aug 10 03:03:35 host pure-ftpd: (?@199.193.71.80) [INFO] Logout.
Aug 10 03:03:35 host pure-ftpd: (?@1

    

Answer 1

这只是您在每个面向 Internet 的服务器上看到的正常“背景噪音”。如果您不需要 ftp 服务器（您不应该，而是更喜欢 SFTP），请将其关闭。除此之外，请确保您拥有正确的密码，并可能安装诸如 Fail2Ban 之类的东西来阻止主机反复尝试连接失败。