| US 7,512,979 B1 | ||
| Log file protection system | ||
| Hideki Koike, 5-29-17-1104 Ogikubo, Suginami-ku, Tokyo 167-0051 (Japan); and Tetsuji Takada, 2-46-12#205, Tobitakyu, Chofu-shi, Tokyo 182-0036 (Japan) | ||
| Filed on Nov. 09, 2000, as Appl. No. 9/710,203. | ||
| Claims priority of provisional application 60/167829, filed on Nov. 29, 1999. | ||
| Claims priority of application No. H11-322630 (JP), filed on Nov. 12, 1999. | ||
| Int. Cl. G06F 12/16 (2006.01); G06F 12/00 (2006.01) | ||
| U.S. Cl. 726—23 [726/22; 707/202] | 24 Claims |
| 1. A log file protection system for protecting log files in which computer system operations have been recorded, comprising:
log file creation means which create a plurality of identical log files which record the operations of said computer system;
alteration detection means which periodically monitor said plurality of identical log files for alteration or deletion; and
restoration means which restore an altered or deleted log file by replacing the altered or deleted log file with an unaltered
log file from the plurality of identical log files when the altered or deleted log file is detected by said alteration detection
means.
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