Hello everyone,

a denial-of-service (DOS) attack has brought down our server agnes.dida.physik.uni-essen.de:

[several 1000 lines snipped ...] Apr 23 04:36:22 agnes proftpd[3130] agnes.dida.physik.uni-essen.de (202.107.3.153[202.107.3.153]): ANON anonymous: Login successful. Apr 23 04:36:45 agnes proftpd[3129] agnes.dida.physik.uni-essen.de (202.107.3.153[202.107.3.153]): FTP session closed. Apr 23 04:37:07 agnes proftpd[3130] agnes.dida.physik.uni-essen.de (202.107.3.153[202.107.3.153]): FTP session closed. Apr 23 04:37:56 agnes proftpd[3134] agnes.dida.physik.uni-essen.de (158.152.84.8[158.152.84.8]): FTP session opened. Apr 23 04:37:56 agnes proftpd[3134] agnes.dida.physik.uni-essen.de (158.152.84.8[158.152.84.8]): ANON anonymous: Login successful. Apr 23 04:37:58 agnes proftpd[3134] agnes.dida.physik.uni-essen.de (158.152.84.8[158.152.84.8]): FTP session closed. Apr 23 04:38:32 agnes proftpd[3135] agnes.dida.physik.uni-essen.de (202.107.3.153[202.107.3.153]): FTP session opened. Apr 23 04:38:39 agnes proftpd[3135] agnes.dida.physik.uni-essen.de (202.107.3.153[202.107.3.153]): ANON anonymous: Login successful. Apr 23 04:39:05 agnes proftpd[3135] agnes.dida.physik.uni-essen.de (202.107.3.153[202.107.3.153]): FTP session closed. Apr 23 04:39:30 agnes proftpd[3136] agnes.dida.physik.uni-essen.de (202.107.3.153[202.107.3.153]): FTP session opened. Apr 23 04:39:32 agnes proftpd[3136] agnes.dida.physik.uni-essen.de (202.107.3.153[202.107.3.153]): ANON anonymous: Login successful. Apr 23 04:39:58 agnes proftpd[3136] agnes.dida.physik.uni-essen.de (202.107.3.153[202.107.3.153]): FTP session closed. Apr 23 04:40:24 agnes proftpd[3137] agnes.dida.physik.uni-essen.de (202.107.3.153[202.107.3.153]): FTP session opened. Apr 23 04:40:30 agnes proftpd[3137] agnes.dida.physik.uni-essen.de (202.107.3.153[202.107.3.153]): ANON anonymous: Login successful. Apr 23 04:40:53 agnes proftpd[3128] agnes.dida.physik.uni-essen.de (202.107.3.153[202.107.3.153]): Data transfer stall timeout: 300 seconds Apr 23 04:40:53 agnes proftpd[3128] agnes.dida.physik.uni-essen.de (202.107.3.153[202.107.3.153]): ProFTPD terminating (signal 11) Apr 23 04:40:53 agnes proftpd[3128] agnes.dida.physik.uni-essen.de (202.107.3.153[202.107.3.153]): ProFTPD terminating (signal 11) Apr 23 04:40:53 agnes proftpd[3128] agnes.dida.physik.uni-essen.de (202.107.3.153[202.107.3.153]): ProFTPD terminating (signal 11) Apr 23 04:40:53 agnes proftpd[3128] agnes.dida.physik.uni-essen.de (202.107.3.153[202.107.3.153]): ProFTPD terminating (signal 11) Apr 23 04:40:53 agnes proftpd[3128] agnes.dida.physik.uni-essen.de (202.107.3.153[202.107.3.153]): ProFTPD terminating (signal 11) [several 1000 lines snipped ...]

We are working on its reanimation.

Peter